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<span>Development Guide</span>
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</script><p>This comprehensive guide covers everything developers need to build applications with Geode, from initial setup through testing, debugging, and deployment. Whether you’re building web applications, microservices, or data pipelines, this guide provides the foundation for successful Geode integration.</p>
<h3 id="getting-started" class="position-relative d-flex align-items-center group">
<span>Getting Started</span>
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</h3>
<h4 id="prerequisites" class="position-relative d-flex align-items-center group">
<span>Prerequisites</span>
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</h4><p><strong>System Requirements</strong>:</p>
<ul>
<li>Linux, macOS, or Windows (WSL2)</li>
<li>4GB RAM minimum (8GB+ recommended)</li>
<li>2GB free disk space</li>
<li>Modern compiler toolchain</li>
</ul>
<p><strong>For Server Development</strong>:</p>
<ul>
<li>Zig 0.1.0+ (for building from source)</li>
<li>Git</li>
</ul>
<p><strong>For Client Development</strong>:</p>
<ul>
<li>Go 1.24+ (for Go client)</li>
<li>Python 3.9+ (for Python client)</li>
<li>Rust 1.70+ (for Rust client)</li>
<li>Node.js 18+ (if building JavaScript client)</li>
</ul>
<h4 id="installation" class="position-relative d-flex align-items-center group">
<span>Installation</span>
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</h4><p><strong>Option 1: Docker (Fastest)</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Pull and run Geode</span>
</span></span><span class="line"><span class="cl">docker pull geodedb/geode:latest
</span></span><span class="line"><span class="cl">docker run -d -p 3141:3141 --name geode geodedb/geode:latest
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Verify</span>
</span></span><span class="line"><span class="cl">docker logs geode
</span></span></code></pre></div><p><strong>Option 2: Build from Source</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Clone repository</span>
</span></span><span class="line"><span class="cl">git clone https://github.com/codeprosorg/geode
</span></span><span class="line"><span class="cl"><span class="nb">cd</span> geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Build</span>
</span></span><span class="line"><span class="cl">make build
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Run server</span>
</span></span><span class="line"><span class="cl">./zig-out/bin/geode serve --listen 127.0.0.1:3141
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># In another terminal</span>
</span></span><span class="line"><span class="cl">./zig-out/bin/geode shell
</span></span></code></pre></div><p><strong>Option 3: Package Manager</strong> (coming soon):</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Homebrew (macOS/Linux)</span>
</span></span><span class="line"><span class="cl">brew install geodedb/geode/geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># APT (Debian/Ubuntu)</span>
</span></span><span class="line"><span class="cl">sudo apt install geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Snap (Linux)</span>
</span></span><span class="line"><span class="cl">sudo snap install geode
</span></span></code></pre></div>
<h3 id="development-environment-setup" class="position-relative d-flex align-items-center group">
<span>Development Environment Setup</span>
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</h3>
<h4 id="local-development-server" class="position-relative d-flex align-items-center group">
<span>Local Development Server</span>
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</h4><p>Create a development configuration:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="c"># config/dev.yaml</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">server</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">listen</span><span class="p">:</span><span class="w"> </span><span class="s2">"127.0.0.1:3141"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">log_level</span><span class="p">:</span><span class="w"> </span><span class="s2">"debug"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">storage</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">data_dir</span><span class="p">:</span><span class="w"> </span><span class="s2">"./data/dev"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">wal_dir</span><span class="p">:</span><span class="w"> </span><span class="s2">"./data/wal"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">security</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">tls_enabled</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w"> </span><span class="c"># Disable for local dev only</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">performance</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">query_timeout</span><span class="p">:</span><span class="w"> </span><span class="l">30s</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">max_connections</span><span class="p">:</span><span class="w"> </span><span class="m">100</span><span class="w">
</span></span></span></code></pre></div><p>Start server:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">./geode serve --config config/dev.yaml
</span></span></code></pre></div>
<h4 id="database-shell" class="position-relative d-flex align-items-center group">
<span>Database Shell</span>
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</h4><p>The interactive shell is essential for development:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Connect to local server</span>
</span></span><span class="line"><span class="cl">./geode shell
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Or specify remote server</span>
</span></span><span class="line"><span class="cl">./geode shell --host geode.example.com:3141
</span></span></code></pre></div><p>Shell commands:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql"><span class="line"><span class="cl"><span class="err">--</span><span class="w"> </span><span class="py">Execute</span><span class="w"> </span><span class="py">queries</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">MATCH</span><span class="w"> </span><span class="p">(</span><span class="py">p</span><span class="p">:</span><span class="nc">Person</span><span class="p">)</span><span class="w"> </span><span class="py">RETURN</span><span class="w"> </span><span class="py">p</span><span class="err">.</span><span class="py">name</span><span class="w"> </span><span class="py">LIMIT</span><span class="w"> </span><span class="py">10</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">--</span><span class="w"> </span><span class="py">Show</span><span class="w"> </span><span class="kd">schema</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">SHOW</span><span class="w"> </span><span class="py">LABELS</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">SHOW</span><span class="w"> </span><span class="py">INDEXES</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">--</span><span class="w"> </span><span class="py">Measure</span><span class="w"> </span><span class="py">timing</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">.</span><span class="py">timer</span><span class="w"> </span><span class="kd">on</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">MATCH</span><span class="w"> </span><span class="p">(</span><span class="py">p</span><span class="p">:</span><span class="nc">Person</span><span class="p">)</span><span class="err">-</span><span class="p">[:</span><span class="nc">KNOWS</span><span class="err">*</span><span class="py">2</span><span class="err">.</span><span class="mf">.3</span><span class="p">]</span><span class="err">-></span><span class="p">(</span><span class="py">friend</span><span class="p">)</span><span class="w"> </span><span class="py">RETURN</span><span class="w"> </span><span class="py">count</span><span class="p">(</span><span class="py">friend</span><span class="p">)</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">--</span><span class="w"> </span><span class="py">Export</span><span class="w"> </span><span class="py">results</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">.</span><span class="py">output</span><span class="w"> </span><span class="py">results</span><span class="err">.</span><span class="py">json</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">MATCH</span><span class="w"> </span><span class="p">(</span><span class="py">p</span><span class="p">:</span><span class="nc">Person</span><span class="p">)</span><span class="w"> </span><span class="py">RETURN</span><span class="w"> </span><span class="py">p</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">--</span><span class="w"> </span><span class="py">Help</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">.</span><span class="py">help</span><span class="w">
</span></span></span></code></pre></div>
<h3 id="client-library-integration" class="position-relative d-flex align-items-center group">
<span>Client Library Integration</span>
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<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h3>
<h4 id="go-client" class="position-relative d-flex align-items-center group">
<span>Go Client</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="go-client"
aria-haspopup="dialog"
aria-label="Share link: Go Client">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
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</h4><p><strong>Installation</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">go get geodedb.com/geode
</span></span></code></pre></div><p><strong>Basic Usage</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="kn">package</span> <span class="nx">main</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="kn">import</span> <span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s">"context"</span>
</span></span><span class="line"><span class="cl"> <span class="s">"database/sql"</span>
</span></span><span class="line"><span class="cl"> <span class="s">"fmt"</span>
</span></span><span class="line"><span class="cl"> <span class="s">"log"</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="nx">_</span> <span class="s">"geodedb.com/geode"</span>
</span></span><span class="line"><span class="cl"><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="kd">func</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="c1">// Connect
</span></span></span><span class="line"><span class="cl"><span class="c1"></span> <span class="nx">db</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">sql</span><span class="p">.</span><span class="nf">Open</span><span class="p">(</span><span class="s">"geode"</span><span class="p">,</span> <span class="s">"quic://localhost:3141"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nx">log</span><span class="p">.</span><span class="nf">Fatal</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="k">defer</span> <span class="nx">db</span><span class="p">.</span><span class="nf">Close</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1">// Ping to verify connection
</span></span></span><span class="line"><span class="cl"><span class="c1"></span> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">db</span><span class="p">.</span><span class="nf">PingContext</span><span class="p">(</span><span class="nx">context</span><span class="p">.</span><span class="nf">Background</span><span class="p">());</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nx">log</span><span class="p">.</span><span class="nf">Fatal</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1">// Execute query
</span></span></span><span class="line"><span class="cl"><span class="c1"></span> <span class="nx">rows</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">db</span><span class="p">.</span><span class="nf">QueryContext</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="nx">context</span><span class="p">.</span><span class="nf">Background</span><span class="p">(),</span>
</span></span><span class="line"><span class="cl"> <span class="s">"MATCH (p:Person) WHERE p.age > $age RETURN p.name, p.city"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="nx">sql</span><span class="p">.</span><span class="nf">Named</span><span class="p">(</span><span class="s">"age"</span><span class="p">,</span> <span class="mi">30</span><span class="p">),</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nx">log</span><span class="p">.</span><span class="nf">Fatal</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="k">defer</span> <span class="nx">rows</span><span class="p">.</span><span class="nf">Close</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1">// Process results
</span></span></span><span class="line"><span class="cl"><span class="c1"></span> <span class="k">for</span> <span class="nx">rows</span><span class="p">.</span><span class="nf">Next</span><span class="p">()</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="kd">var</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">city</span> <span class="kt">string</span>
</span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">rows</span><span class="p">.</span><span class="nf">Scan</span><span class="p">(</span><span class="o">&</span><span class="nx">name</span><span class="p">,</span> <span class="o">&</span><span class="nx">city</span><span class="p">);</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="nx">log</span><span class="p">.</span><span class="nf">Fatal</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="nx">fmt</span><span class="p">.</span><span class="nf">Printf</span><span class="p">(</span><span class="s">"%s from %s\n"</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">city</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span>
</span></span></code></pre></div><p><strong>Advanced Features</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-go" data-lang="go"><span class="line"><span class="cl"><span class="c1">// Transactions
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="nx">tx</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">db</span><span class="p">.</span><span class="nf">BeginTx</span><span class="p">(</span><span class="nx">context</span><span class="p">.</span><span class="nf">Background</span><span class="p">(),</span> <span class="kc">nil</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="nx">err</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span>
</span></span><span class="line"><span class="cl"><span class="k">defer</span> <span class="nx">tx</span><span class="p">.</span><span class="nf">Rollback</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">tx</span><span class="p">.</span><span class="nf">ExecContext</span><span class="p">(</span><span class="nx">ctx</span><span class="p">,</span> <span class="s">"INSERT (u:User {name: $name})"</span><span class="p">,</span> <span class="nx">sql</span><span class="p">.</span><span class="nf">Named</span><span class="p">(</span><span class="s">"name"</span><span class="p">,</span> <span class="s">"Alice"</span><span class="p">))</span>
</span></span><span class="line"><span class="cl"><span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="nx">err</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">tx</span><span class="p">.</span><span class="nf">Commit</span><span class="p">();</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="nx">err</span>
</span></span><span class="line"><span class="cl"><span class="p">}</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1">// Prepared statements
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="nx">stmt</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">db</span><span class="p">.</span><span class="nf">PrepareContext</span><span class="p">(</span><span class="nx">ctx</span><span class="p">,</span> <span class="s">"MATCH (p:Person {id: $id}) RETURN p.name"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="k">defer</span> <span class="nx">stmt</span><span class="p">.</span><span class="nf">Close</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">id</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">userIDs</span> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="kd">var</span> <span class="nx">name</span> <span class="kt">string</span>
</span></span><span class="line"><span class="cl"> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">stmt</span><span class="p">.</span><span class="nf">QueryRowContext</span><span class="p">(</span><span class="nx">ctx</span><span class="p">,</span> <span class="nx">sql</span><span class="p">.</span><span class="nf">Named</span><span class="p">(</span><span class="s">"id"</span><span class="p">,</span> <span class="nx">id</span><span class="p">)).</span><span class="nf">Scan</span><span class="p">(</span><span class="o">&</span><span class="nx">name</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="c1">// ...
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="p">}</span>
</span></span></code></pre></div>
<h4 id="python-client" class="position-relative d-flex align-items-center group">
<span>Python Client</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="python-client"
aria-haspopup="dialog"
aria-label="Share link: Python Client">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Installation</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">pip install geode-client
</span></span></code></pre></div><p><strong>Basic Usage</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">asyncio</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">geode_client</span> <span class="kn">import</span> <span class="n">Client</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
</span></span><span class="line"><span class="cl"> <span class="c1"># Connect</span>
</span></span><span class="line"><span class="cl"> <span class="n">client</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span><span class="n">host</span><span class="o">=</span><span class="s2">"localhost"</span><span class="p">,</span> <span class="n">port</span><span class="o">=</span><span class="mi">3141</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">async</span> <span class="k">with</span> <span class="n">client</span><span class="o">.</span><span class="n">connection</span><span class="p">()</span> <span class="k">as</span> <span class="n">conn</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="c1"># Execute query</span>
</span></span><span class="line"><span class="cl"> <span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">conn</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (p:Person) WHERE p.age > $age RETURN p.name, p.city"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="n">parameters</span><span class="o">=</span><span class="p">{</span><span class="s2">"age"</span><span class="p">:</span> <span class="mi">30</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1"># Process results</span>
</span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">rows</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">row</span><span class="p">[</span><span class="s1">'p.name'</span><span class="p">]</span><span class="si">}</span><span class="s2"> from </span><span class="si">{</span><span class="n">row</span><span class="p">[</span><span class="s1">'p.city'</span><span class="p">]</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">asyncio</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">main</span><span class="p">())</span>
</span></span></code></pre></div><p><strong>Advanced Features</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># Transactions</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">with</span> <span class="n">client</span><span class="o">.</span><span class="n">connection</span><span class="p">()</span> <span class="k">as</span> <span class="n">tx</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">begin</span><span class="p">()</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u:User {name: $name})"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"name"</span><span class="p">:</span> <span class="s2">"Alice"</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u:User {name: $name})"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"name"</span><span class="p">:</span> <span class="s2">"Bob"</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">commit</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Connection pooling</span>
</span></span><span class="line"><span class="cl"><span class="n">client</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"localhost:3141"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="n">pool_size</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="n">max_overflow</span><span class="o">=</span><span class="mi">10</span>
</span></span><span class="line"><span class="cl"><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Query builder</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">geode_client</span> <span class="kn">import</span> <span class="n">QueryBuilder</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">query</span> <span class="o">=</span> <span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="n">QueryBuilder</span><span class="p">()</span>
</span></span><span class="line"><span class="cl"> <span class="o">.</span><span class="k">match</span><span class="p">(</span><span class="s2">"(p:Person)"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="o">.</span><span class="n">where</span><span class="p">(</span><span class="s2">"p.age > $age"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="o">.</span><span class="n">return_</span><span class="p">(</span><span class="s2">"p.name"</span><span class="p">,</span> <span class="s2">"p.city"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="o">.</span><span class="n">order_by</span><span class="p">(</span><span class="s2">"p.name"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="o">.</span><span class="n">limit</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">query</span><span class="o">.</span><span class="n">build</span><span class="p">(),</span> <span class="p">{</span><span class="s2">"age"</span><span class="p">:</span> <span class="mi">30</span><span class="p">})</span>
</span></span></code></pre></div>
<h4 id="rust-client" class="position-relative d-flex align-items-center group">
<span>Rust Client</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="rust-client"
aria-haspopup="dialog"
aria-label="Share link: Rust Client">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Installation</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-toml" data-lang="toml"><span class="line"><span class="cl"><span class="p">[</span><span class="nx">dependencies</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"><span class="nx">geode-client</span> <span class="p">=</span> <span class="s2">"0.1"</span>
</span></span><span class="line"><span class="cl"><span class="nx">tokio</span> <span class="p">=</span> <span class="p">{</span> <span class="nx">version</span> <span class="p">=</span> <span class="s2">"1"</span><span class="p">,</span> <span class="nx">features</span> <span class="p">=</span> <span class="p">[</span><span class="s2">"full"</span><span class="p">]</span> <span class="p">}</span>
</span></span></code></pre></div><p><strong>Basic Usage</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-rust" data-lang="rust"><span class="line"><span class="cl"><span class="k">use</span><span class="w"> </span><span class="n">geode_client</span>::<span class="p">{</span><span class="n">Client</span><span class="p">,</span><span class="w"> </span><span class="n">Error</span><span class="p">,</span><span class="w"> </span><span class="n">Value</span><span class="p">};</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="k">use</span><span class="w"> </span><span class="n">std</span>::<span class="n">collections</span>::<span class="n">HashMap</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="cp">#[tokio::main]</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="k">async</span><span class="w"> </span><span class="k">fn</span> <span class="nf">main</span><span class="p">()</span><span class="w"> </span>-> <span class="nb">Result</span><span class="o"><</span><span class="p">(),</span><span class="w"> </span><span class="n">Error</span><span class="o">></span><span class="w"> </span><span class="p">{</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="c1">// Connect
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">client</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Client</span>::<span class="n">from_dsn</span><span class="p">(</span><span class="s">"localhost:3141"</span><span class="p">)</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">conn</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">client</span><span class="p">.</span><span class="n">connect</span><span class="p">().</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="c1">// Execute query
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">params</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashMap</span>::<span class="n">new</span><span class="p">();</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="n">params</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="s">"age"</span><span class="p">.</span><span class="n">to_string</span><span class="p">(),</span><span class="w"> </span><span class="n">Value</span>::<span class="n">int</span><span class="p">(</span><span class="mi">30</span><span class="p">));</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="p">(</span><span class="n">page</span><span class="p">,</span><span class="w"> </span><span class="n">_</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">conn</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="p">.</span><span class="n">query_with_params</span><span class="p">(</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="s">"MATCH (p:Person) WHERE p.age > $age RETURN p.name, p.city"</span><span class="p">,</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="o">&</span><span class="n">params</span><span class="p">,</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="p">)</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="p">.</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="c1">// Process results
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">row</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="o">&</span><span class="n">page</span><span class="p">.</span><span class="n">rows</span><span class="w"> </span><span class="p">{</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="fm">println!</span><span class="p">(</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="err">\</span><span class="s">"{} from {}</span><span class="se">\"</span><span class="s">,
</span></span></span><span class="line"><span class="cl"><span class="s"> row.get(</span><span class="se">\"</span><span class="s">p.name</span><span class="se">\"</span><span class="s">).unwrap().as_string()?,
</span></span></span><span class="line"><span class="cl"><span class="s"> row.get(</span><span class="se">\"</span><span class="s">p.city</span><span class="se">\"</span><span class="s">).unwrap().as_string()?
</span></span></span><span class="line"><span class="cl"><span class="s"> );
</span></span></span><span class="line"><span class="cl"><span class="s"> }
</span></span></span><span class="line"><span class="cl"><span class="s">
</span></span></span><span class="line"><span class="cl"><span class="s"> Ok(())
</span></span></span><span class="line"><span class="cl"><span class="s">}
</span></span></span></code></pre></div><p><strong>Advanced Features</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-rust" data-lang="rust"><span class="line"><span class="cl"><span class="c1">// Transactions
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="k">use</span><span class="w"> </span><span class="n">geode_client</span>::<span class="n">Value</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="k">use</span><span class="w"> </span><span class="n">std</span>::<span class="n">collections</span>::<span class="n">HashMap</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">conn</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">client</span><span class="p">.</span><span class="n">connect</span><span class="p">().</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="n">conn</span><span class="p">.</span><span class="n">begin</span><span class="p">().</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">params</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashMap</span>::<span class="n">new</span><span class="p">();</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="n">params</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="s">"name"</span><span class="p">.</span><span class="n">to_string</span><span class="p">(),</span><span class="w"> </span><span class="n">Value</span>::<span class="n">string</span><span class="p">(</span><span class="s">"Alice"</span><span class="p">));</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="n">conn</span><span class="p">.</span><span class="n">query_with_params</span><span class="p">(</span><span class="s">"CREATE (u:User {name: $name})"</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">params</span><span class="p">).</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="n">conn</span><span class="p">.</span><span class="n">commit</span><span class="p">().</span><span class="k">await</span><span class="o">?</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="c1">// Concurrent queries
</span></span></span><span class="line"><span class="cl"><span class="c1"></span><span class="k">use</span><span class="w"> </span><span class="n">futures</span>::<span class="n">future</span>::<span class="n">join_all</span><span class="p">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="kd">let</span><span class="w"> </span><span class="n">queries</span>: <span class="nb">Vec</span><span class="o"><</span><span class="n">_</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">user_ids</span><span class="p">.</span><span class="n">iter</span><span class="p">().</span><span class="n">map</span><span class="p">(</span><span class="o">|</span><span class="n">id</span><span class="o">|</span><span class="w"> </span><span class="p">{</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="n">client</span><span class="p">.</span><span class="n">query</span><span class="p">(</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="s">"MATCH (u:User {id: $id}) RETURN u.name"</span><span class="p">,</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="o">&</span><span class="p">[(</span><span class="s">"id"</span><span class="p">,</span><span class="w"> </span><span class="n">id</span><span class="p">.</span><span class="n">into</span><span class="p">())]</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="p">)</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="p">}).</span><span class="n">collect</span><span class="p">();</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="kd">let</span><span class="w"> </span><span class="n">results</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">join_all</span><span class="p">(</span><span class="n">queries</span><span class="p">).</span><span class="k">await</span><span class="p">;</span><span class="w">
</span></span></span></code></pre></div>
<h3 id="development-workflows" class="position-relative d-flex align-items-center group">
<span>Development Workflows</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="development-workflows"
aria-haspopup="dialog"
aria-label="Share link: Development Workflows">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h3>
<h4 id="local-development-loop" class="position-relative d-flex align-items-center group">
<span>Local Development Loop</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="local-development-loop"
aria-haspopup="dialog"
aria-label="Share link: Local Development Loop">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># 1. Start Geode in one terminal</span>
</span></span><span class="line"><span class="cl">./geode serve --config config/dev.yaml
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># 2. Run application in another terminal</span>
</span></span><span class="line"><span class="cl"><span class="c1"># Go</span>
</span></span><span class="line"><span class="cl">go run main.go
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Python</span>
</span></span><span class="line"><span class="cl">python app.py
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Rust</span>
</span></span><span class="line"><span class="cl">cargo run
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># 3. Use shell for ad-hoc queries</span>
</span></span><span class="line"><span class="cl">./geode shell
</span></span></code></pre></div>
<h4 id="hot-reload-for-application-code" class="position-relative d-flex align-items-center group">
<span>Hot Reload (for application code)</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="hot-reload-for-application-code"
aria-haspopup="dialog"
aria-label="Share link: Hot Reload (for application code)">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Go with Air</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="c"># .air.toml</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="p">[</span><span class="l">build]</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="l">cmd = "go build -o ./tmp/main ."</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="l">bin = "tmp/main"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="l">include_ext = ["go"]</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="l">exclude_dir = ["tmp", "vendor"]</span><span class="w">
</span></span></span></code></pre></div><p><strong>Python with watchdog</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># run_dev.py</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">watchdog.observers</span> <span class="kn">import</span> <span class="n">Observer</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">watchdog.events</span> <span class="kn">import</span> <span class="n">FileSystemEventHandler</span>
</span></span><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">subprocess</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">class</span> <span class="nc">ChangeHandler</span><span class="p">(</span><span class="n">FileSystemEventHandler</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="k">def</span> <span class="nf">on_modified</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="n">subprocess</span><span class="o">.</span><span class="n">run</span><span class="p">([</span><span class="s2">"python"</span><span class="p">,</span> <span class="s2">"app.py"</span><span class="p">])</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">observer</span> <span class="o">=</span> <span class="n">Observer</span><span class="p">()</span>
</span></span><span class="line"><span class="cl"><span class="n">observer</span><span class="o">.</span><span class="n">schedule</span><span class="p">(</span><span class="n">ChangeHandler</span><span class="p">(),</span> <span class="n">path</span><span class="o">=</span><span class="s1">'.'</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="n">observer</span><span class="o">.</span><span class="n">start</span><span class="p">()</span>
</span></span></code></pre></div>
<h4 id="testing-strategy" class="position-relative d-flex align-items-center group">
<span>Testing Strategy</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="testing-strategy"
aria-haspopup="dialog"
aria-label="Share link: Testing Strategy">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Unit Tests</strong> (test queries in isolation):</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">pytest</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">geode_client</span> <span class="kn">import</span> <span class="n">Client</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nd">@pytest.fixture</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">client</span><span class="p">():</span>
</span></span><span class="line"><span class="cl"> <span class="n">client</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span><span class="s2">"localhost:3141"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">async</span> <span class="k">with</span> <span class="n">client</span><span class="o">.</span><span class="n">connection</span><span class="p">()</span> <span class="k">as</span> <span class="n">c</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="k">yield</span> <span class="n">c</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nd">@pytest.mark.asyncio</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">test_create_user</span><span class="p">(</span><span class="n">client</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="c1"># Setup</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">c</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s2">"DELETE (u:User {email: '
[email protected]'})"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1"># Execute</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">c</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u:User {email: $email, name: $name})"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"email"</span><span class="p">:</span> <span class="s2">"
[email protected]"</span><span class="p">,</span> <span class="s2">"name"</span><span class="p">:</span> <span class="s2">"Test User"</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1"># Verify</span>
</span></span><span class="line"><span class="cl"> <span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">c</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (u:User {email: $email}) RETURN u.name"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"email"</span><span class="p">:</span> <span class="s2">"
[email protected]"</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="n">rows</span> <span class="o">=</span> <span class="p">[</span><span class="n">row</span> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">rows</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="k">assert</span> <span class="nb">len</span><span class="p">(</span><span class="n">rows</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span>
</span></span><span class="line"><span class="cl"> <span class="k">assert</span> <span class="n">rows</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s1">'u.name'</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"Test User"</span>
</span></span></code></pre></div><p><strong>Integration Tests</strong> (test complete workflows):</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="nd">@pytest.mark.integration</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">test_order_creation_workflow</span><span class="p">(</span><span class="n">client</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="c1"># Create test data</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u:User {id: 'test_user', name: 'Test'})"</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (p:Product {id: 'test_prod', price: 99.99})"</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1"># Execute workflow</span>
</span></span><span class="line"><span class="cl"> <span class="k">async</span> <span class="k">with</span> <span class="n">client</span><span class="o">.</span><span class="n">connection</span><span class="p">()</span> <span class="k">as</span> <span class="n">tx</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">begin</span><span class="p">()</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (o:Order {id: 'test_order', total: 99.99})"</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">execute</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (u:User {id: 'test_user'}), (o:Order {id: 'test_order'}) "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u)-[:PLACED]->(o)"</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">commit</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="c1"># Verify</span>
</span></span><span class="line"><span class="cl"> <span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">tx</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (u:User {id: 'test_user'})-[:PLACED]->(o:Order) "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"RETURN o.id, o.total"</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="n">rows</span> <span class="o">=</span> <span class="p">[</span><span class="n">row</span> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">rows</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="k">assert</span> <span class="nb">len</span><span class="p">(</span><span class="n">rows</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span>
</span></span><span class="line"><span class="cl"> <span class="k">assert</span> <span class="n">rows</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s1">'o.total'</span><span class="p">]</span> <span class="o">==</span> <span class="mf">99.99</span>
</span></span></code></pre></div><p><strong>Load Tests</strong> (test performance):</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">asyncio</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">time</span> <span class="kn">import</span> <span class="n">time</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">load_test</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="n">num_queries</span><span class="o">=</span><span class="mi">1000</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="n">start</span> <span class="o">=</span> <span class="n">time</span><span class="p">()</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="n">tasks</span> <span class="o">=</span> <span class="p">[</span>
</span></span><span class="line"><span class="cl"> <span class="n">client</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="s2">"MATCH (p:Person) RETURN p.name LIMIT 1"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">num_queries</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="p">]</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="n">results</span> <span class="o">=</span> <span class="k">await</span> <span class="n">asyncio</span><span class="o">.</span><span class="n">gather</span><span class="p">(</span><span class="o">*</span><span class="n">tasks</span><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="n">duration</span> <span class="o">=</span> <span class="n">time</span><span class="p">()</span> <span class="o">-</span> <span class="n">start</span>
</span></span><span class="line"><span class="cl"> <span class="n">qps</span> <span class="o">=</span> <span class="n">num_queries</span> <span class="o">/</span> <span class="n">duration</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Executed </span><span class="si">{</span><span class="n">num_queries</span><span class="si">}</span><span class="s2"> queries in </span><span class="si">{</span><span class="n">duration</span><span class="si">:</span><span class="s2">.2f</span><span class="si">}</span><span class="s2">s (</span><span class="si">{</span><span class="n">qps</span><span class="si">:</span><span class="s2">.0f</span><span class="si">}</span><span class="s2"> QPS)"</span><span class="p">)</span>
</span></span></code></pre></div>
<h3 id="debugging" class="position-relative d-flex align-items-center group">
<span>Debugging</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="debugging"
aria-haspopup="dialog"
aria-label="Share link: Debugging">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h3>
<h4 id="enable-debug-logging" class="position-relative d-flex align-items-center group">
<span>Enable Debug Logging</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="enable-debug-logging"
aria-haspopup="dialog"
aria-label="Share link: Enable Debug Logging">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Server-side</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="c"># config/dev.yaml</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">server</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">log_level</span><span class="p">:</span><span class="w"> </span><span class="s2">"debug"</span><span class="w">
</span></span></span></code></pre></div><p><strong>Client-side</strong> (Python):</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">logging</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">logging</span><span class="o">.</span><span class="n">basicConfig</span><span class="p">(</span><span class="n">level</span><span class="o">=</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Client will log all queries</span>
</span></span><span class="line"><span class="cl"><span class="n">client</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span><span class="s2">"localhost:3141"</span><span class="p">)</span>
</span></span></code></pre></div>
<h4 id="profile-queries" class="position-relative d-flex align-items-center group">
<span>Profile Queries</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="profile-queries"
aria-haspopup="dialog"
aria-label="Share link: Profile Queries">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql"><span class="line"><span class="cl"><span class="err">--</span><span class="w"> </span><span class="py">Profile</span><span class="w"> </span><span class="kd">query</span><span class="w"> </span><span class="nc">execution</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">PROFILE</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">MATCH</span><span class="w"> </span><span class="p">(</span><span class="py">p</span><span class="p">:</span><span class="nc">Person</span><span class="p">)</span><span class="err">-</span><span class="p">[:</span><span class="nc">KNOWS</span><span class="err">*</span><span class="py">2</span><span class="err">.</span><span class="mf">.3</span><span class="p">]</span><span class="err">-></span><span class="p">(</span><span class="py">friend</span><span class="p">)</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">WHERE</span><span class="w"> </span><span class="py">p</span><span class="err">.</span><span class="py">city</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="err">'</span><span class="py">San</span><span class="w"> </span><span class="py">Francisco</span><span class="err">'</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">RETURN</span><span class="w"> </span><span class="py">friend</span><span class="err">.</span><span class="py">name</span><span class="err">;</span><span class="w">
</span></span></span></code></pre></div><p>Analyze output:</p>
<ul>
<li>Execution plan</li>
<li>Operator costs</li>
<li>Index usage</li>
<li>Rows processed</li>
</ul>
<h4 id="monitor-server-metrics" class="position-relative d-flex align-items-center group">
<span>Monitor Server Metrics</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="monitor-server-metrics"
aria-haspopup="dialog"
aria-label="Share link: Monitor Server Metrics">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Check server logs</span>
</span></span><span class="line"><span class="cl">tail -f /var/log/geode/server.log
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Monitor resource usage</span>
</span></span><span class="line"><span class="cl">docker stats geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Or with native installation</span>
</span></span><span class="line"><span class="cl">top -p <span class="k">$(</span>pidof geode<span class="k">)</span>
</span></span></code></pre></div>
<h4 id="common-issues" class="position-relative d-flex align-items-center group">
<span>Common Issues</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="common-issues"
aria-haspopup="dialog"
aria-label="Share link: Common Issues">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h4><p><strong>Connection refused</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Check server is running</span>
</span></span><span class="line"><span class="cl">ps aux <span class="p">|</span> grep geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Check port is open</span>
</span></span><span class="line"><span class="cl">netstat -an <span class="p">|</span> grep <span class="m">3141</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Check firewall</span>
</span></span><span class="line"><span class="cl">sudo ufw status
</span></span></code></pre></div><p><strong>Slow queries</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql"><span class="line"><span class="cl"><span class="err">--</span><span class="w"> </span><span class="py">Check</span><span class="w"> </span><span class="py">for</span><span class="w"> </span><span class="py">missing</span><span class="w"> </span><span class="py">indexes</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">PROFILE</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">MATCH</span><span class="w"> </span><span class="p">(</span><span class="py">p</span><span class="p">:</span><span class="nc">Person</span><span class="w"> </span><span class="p">{</span><span class="py">email</span><span class="p">:</span><span class="w"> </span><span class="nv">$email</span><span class="p">})</span><span class="w"> </span><span class="nc">RETURN</span><span class="w"> </span><span class="py">p</span><span class="err">;</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="err">--</span><span class="w"> </span><span class="py">If</span><span class="w"> </span><span class="py">no</span><span class="w"> </span><span class="py">index</span><span class="w"> </span><span class="py">used</span><span class="p">,</span><span class="w"> </span><span class="py">create</span><span class="w"> </span><span class="kd">on</span><span class="py">e</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="py">CREATE</span><span class="w"> </span><span class="py">INDEX</span><span class="w"> </span><span class="py">person_email</span><span class="w"> </span><span class="py">ON</span><span class="w"> </span><span class="py">Person</span><span class="p">(</span><span class="py">email</span><span class="p">)</span><span class="err">;</span><span class="w">
</span></span></span></code></pre></div><p><strong>Out of memory</strong>:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="c"># Increase memory limit (config/dev.yaml)</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">performance</span><span class="p">:</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">max_memory</span><span class="p">:</span><span class="w"> </span><span class="s2">"4GB"</span><span class="w">
</span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">query_memory_limit</span><span class="p">:</span><span class="w"> </span><span class="s2">"512MB"</span><span class="w">
</span></span></span></code></pre></div>
<h3 id="sample-application" class="position-relative d-flex align-items-center group">
<span>Sample Application</span>
<button type="button"
class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1"
data-share-target="sample-application"
aria-haspopup="dialog"
aria-label="Share link: Sample Application">
<i class="fa-sharp-duotone fa-solid fa-share-nodes" aria-hidden="true" style="font-size: 0.8em;"></i>
<span class="visually-hidden">Share link</span>
</button>
</h3><p>Here’s a complete example - a social network API:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># app.py</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">fastapi</span> <span class="kn">import</span> <span class="n">FastAPI</span><span class="p">,</span> <span class="n">HTTPException</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">geode_client</span> <span class="kn">import</span> <span class="n">Client</span>
</span></span><span class="line"><span class="cl"><span class="kn">from</span> <span class="nn">pydantic</span> <span class="kn">import</span> <span class="n">BaseModel</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="n">app</span> <span class="o">=</span> <span class="n">FastAPI</span><span class="p">()</span>
</span></span><span class="line"><span class="cl"><span class="n">client</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span><span class="s2">"localhost:3141"</span><span class="p">,</span> <span class="n">pool_size</span><span class="o">=</span><span class="mi">20</span><span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">class</span> <span class="nc">User</span><span class="p">(</span><span class="n">BaseModel</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="nb">id</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl"> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl"> <span class="n">email</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">class</span> <span class="nc">Post</span><span class="p">(</span><span class="n">BaseModel</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="nb">id</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl"> <span class="n">user_id</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl"> <span class="n">content</span><span class="p">:</span> <span class="nb">str</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nd">@app.post</span><span class="p">(</span><span class="s2">"/users"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">create_user</span><span class="p">(</span><span class="n">user</span><span class="p">:</span> <span class="n">User</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="k">try</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="k">await</span> <span class="n">client</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"INSERT (u:User {id: $id, name: $name, email: $email})"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"id"</span><span class="p">:</span> <span class="n">user</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="s2">"name"</span><span class="p">:</span> <span class="n">user</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="s2">"email"</span><span class="p">:</span> <span class="n">user</span><span class="o">.</span><span class="n">email</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="p">{</span><span class="s2">"status"</span><span class="p">:</span> <span class="s2">"created"</span><span class="p">,</span> <span class="s2">"user"</span><span class="p">:</span> <span class="n">user</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="k">raise</span> <span class="n">HTTPException</span><span class="p">(</span><span class="n">status_code</span><span class="o">=</span><span class="mi">500</span><span class="p">,</span> <span class="n">detail</span><span class="o">=</span><span class="nb">str</span><span class="p">(</span><span class="n">e</span><span class="p">))</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nd">@app.get</span><span class="p">(</span><span class="s2">"/users/</span><span class="si">{user_id}</span><span class="s2">/friends"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">get_friends</span><span class="p">(</span><span class="n">user_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">client</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (u:User {id: $id})-[:FRIENDS_WITH]->(friend:User) "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"RETURN friend.id, friend.name"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"id"</span><span class="p">:</span> <span class="n">user_id</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="n">friends</span> <span class="o">=</span> <span class="p">[</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"id"</span><span class="p">:</span> <span class="n">row</span><span class="p">[</span><span class="s1">'friend.id'</span><span class="p">],</span> <span class="s2">"name"</span><span class="p">:</span> <span class="n">row</span><span class="p">[</span><span class="s1">'friend.name'</span><span class="p">]}</span>
</span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">rows</span>
</span></span><span class="line"><span class="cl"> <span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="p">{</span><span class="s2">"friends"</span><span class="p">:</span> <span class="n">friends</span><span class="p">}</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="nd">@app.get</span><span class="p">(</span><span class="s2">"/users/</span><span class="si">{user_id}</span><span class="s2">/recommendations"</span><span class="p">)</span>
</span></span><span class="line"><span class="cl"><span class="k">async</span> <span class="k">def</span> <span class="nf">get_friend_recommendations</span><span class="p">(</span><span class="n">user_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
</span></span><span class="line"><span class="cl"> <span class="n">result</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="k">await</span> <span class="n">client</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"MATCH (u:User {id: $id})-[:FRIENDS_WITH]->(f1)-[:FRIENDS_WITH]->(f2) "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"WHERE f2 <> u AND NOT EXISTS { MATCH (u)-[:FRIENDS_WITH]->(f2) } "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"RETURN f2.id, f2.name, count(f1) AS mutual_friends "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"ORDER BY mutual_friends DESC "</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"LIMIT 10"</span><span class="p">,</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span><span class="s2">"id"</span><span class="p">:</span> <span class="n">user_id</span><span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="p">)</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"> <span class="n">recommendations</span> <span class="o">=</span> <span class="p">[</span>
</span></span><span class="line"><span class="cl"> <span class="p">{</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"id"</span><span class="p">:</span> <span class="n">row</span><span class="p">[</span><span class="s1">'f2.id'</span><span class="p">],</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"name"</span><span class="p">:</span> <span class="n">row</span><span class="p">[</span><span class="s1">'f2.name'</span><span class="p">],</span>
</span></span><span class="line"><span class="cl"> <span class="s2">"mutual_friends"</span><span class="p">:</span> <span class="n">row</span><span class="p">[</span><span class="s1">'mutual_friends'</span><span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="p">}</span>
</span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">rows</span>
</span></span><span class="line"><span class="cl"> <span class="p">]</span>
</span></span><span class="line"><span class="cl"> <span class="k">return</span> <span class="p">{</span><span class="s2">"recommendations"</span><span class="p">:</span> <span class="n">recommendations</span><span class="p">}</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">"__main__"</span><span class="p">:</span>
</span></span><span class="line"><span class="cl"> <span class="kn">import</span> <span class="nn">uvicorn</span>
</span></span><span class="line"><span class="cl"> <span class="n">uvicorn</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">app</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="s2">"0.0.0.0"</span><span class="p">,</span> <span class="n">port</span><span class="o">=</span><span class="mi">8000</span><span class="p">)</span>
</span></span></code></pre></div><p>Run:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Install dependencies</span>
</span></span><span class="line"><span class="cl">pip install fastapi uvicorn geode-client
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Run application</span>
</span></span><span class="line"><span class="cl">python app.py
</span></span></code></pre></div><p>Test:</p>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Create users</span>
</span></span><span class="line"><span class="cl">curl -X POST http://localhost:8000/users <span class="se">\
</span></span></span><span class="line"><span class="cl"><span class="se"></span> -H <span class="s2">"Content-Type: application/json"</span> <span class="se">\
</span></span></span><span class="line"><span class="cl"><span class="se"></span> -d <span class="s1">'{"id": "u1", "name": "Alice", "email": "
[email protected]"}'</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Get friend recommendations</span>
</span></span><span class="line"><span class="cl">curl http://localhost:8000/users/u1/recommendations
</span></span></code></pre></div>
<h3 id="contributing-to-geode" class="position-relative d-flex align-items-center group">
<span>Contributing to Geode</span>
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</h3>
<h4 id="development-setup" class="position-relative d-flex align-items-center group">
<span>Development Setup</span>
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</h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Fork and clone</span>
</span></span><span class="line"><span class="cl">git clone https://gitlab.com/YOUR_USERNAME/geode.git
</span></span><span class="line"><span class="cl"><span class="nb">cd</span> geode
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Build</span>
</span></span><span class="line"><span class="cl">make build
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Run tests</span>
</span></span><span class="line"><span class="cl">make <span class="nb">test</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Run comprehensive test suite</span>
</span></span><span class="line"><span class="cl">make geodetestlab-comprehensive
</span></span></code></pre></div>
<h4 id="code-style" class="position-relative d-flex align-items-center group">
<span>Code Style</span>
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</button>
</h4><p>Follow existing patterns:</p>
<ul>
<li>Zig: Standard Zig formatting (<code>zig fmt</code>)</li>
<li>Go: <code>gofmt</code> and <code>golint</code></li>
<li>Python: <code>black</code> and <code>pylint</code></li>
<li>Rust: <code>rustfmt</code> and <code>clippy</code></li>
</ul>
<h4 id="submitting-changes" class="position-relative d-flex align-items-center group">
<span>Submitting Changes</span>
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</h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1"># Create feature branch</span>
</span></span><span class="line"><span class="cl">git checkout -b feature/my-feature
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Make changes, commit</span>
</span></span><span class="line"><span class="cl">git add .
</span></span><span class="line"><span class="cl">git commit -m <span class="s2">"feat: Add new feature"</span>
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Push</span>
</span></span><span class="line"><span class="cl">git push origin feature/my-feature
</span></span><span class="line"><span class="cl">
</span></span><span class="line"><span class="cl"><span class="c1"># Create merge request on GitLab</span>
</span></span></code></pre></div>
<h3 id="resources" class="position-relative d-flex align-items-center group">
<span>Resources</span>
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</h3>
<h4 id="documentation" class="position-relative d-flex align-items-center group">
<span>Documentation</span>
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</h4><ul>
<li>API Reference: <a
href="https://geodedb.com/docs/api/"
>https://geodedb.com/docs/api/</a>
</li>
<li>GQL Syntax: <a
href="https://geodedb.com/docs/gql/"
>https://geodedb.com/docs/gql/</a>
</li>
<li>Client Libraries: <a
href="https://geodedb.com/docs/clients/"
>https://geodedb.com/docs/clients/</a>
</li>
</ul>
<h4 id="community" class="position-relative d-flex align-items-center group">
<span>Community</span>
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</h4><ul>
<li>Forum: <a
href="https://forum.geodedb.com"
aria-label="https://forum.geodedb.com – opens in new window"
target="_blank" rel="noopener noreferrer"
>https://forum.geodedb.com
<span aria-hidden="true" class="external-icon">↗</span>
</a>
</li>
<li>Chat: <a
href="https://discord.gg/geodedb"
aria-label="https://discord.gg/geodedb – opens in new window"
target="_blank" rel="noopener noreferrer"
>https://discord.gg/geodedb
<span aria-hidden="true" class="external-icon">↗</span>
</a>
</li>
<li>Issue Tracker: <a
href="https://gitlab.com/devnw/codepros/geode/issues"
aria-label="https://gitlab.com/devnw/codepros/geode/issues – opens in new window"
target="_blank" rel="noopener noreferrer"
>https://gitlab.com/devnw/codepros/geode/issues
<span aria-hidden="true" class="external-icon">↗</span>
</a>
</li>
</ul>
<h4 id="examples" class="position-relative d-flex align-items-center group">
<span>Examples</span>
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</h4><ul>
<li>Sample Applications: <a
href="https://github.com/geodedb/examples"
aria-label="https://github.com/geodedb/examples – opens in new window"
target="_blank" rel="noopener noreferrer"
>https://github.com/geodedb/examples
<span aria-hidden="true" class="external-icon">↗</span>
</a>
</li>
<li>Client Examples: Each client repo includes examples/</li>
<li>Tutorial Series: <a
href="https://geodedb.com/tutorials/"
>https://geodedb.com/tutorials/</a>
</li>
</ul>
<h3 id="conclusion" class="position-relative d-flex align-items-center group">
<span>Conclusion</span>
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</h3><p>This guide provides the foundation for developing applications with Geode. Key takeaways:</p>
<ol>
<li><strong>Setup</strong>: Docker for quick start, build from source for development</li>
<li><strong>Client Libraries</strong>: Choose Go, Python, Rust, or Zig based on your stack</li>
<li><strong>Testing</strong>: Comprehensive unit, integration, and load tests</li>
<li><strong>Debugging</strong>: Use PROFILE, logs, and metrics to diagnose issues</li>
<li><strong>Best Practices</strong>: Connection pooling, parameterized queries, proper error handling</li>
</ol>
<p>Explore the documentation for advanced topics, optimization techniques, and deployment strategies. Happy coding!</p>