117 lines
6.4 KiB
HTML
117 lines
6.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en" data-content_root="../">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Single-Page Applications — Flask Documentation (3.2.x)</title>
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accesskey="I">index</a></li>
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accesskey="N">next</a> |</li>
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accesskey="P">previous</a> |</li>
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<li class="nav-item nav-item-0"><a href="../index.html">Flask Documentation (3.2.x)</a> »</li>
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<li class="nav-item nav-item-1"><a href="index.html" accesskey="U">Patterns for Flask</a> »</li>
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<li class="nav-item nav-item-this"><a href="">Single-Page Applications</a></li>
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<section id="single-page-applications">
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<h1>Single-Page Applications<a class="headerlink" href="#single-page-applications" title="Link to this heading">¶</a></h1>
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<p>Flask can be used to serve Single-Page Applications (SPA) by placing static
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files produced by your frontend framework in a subfolder inside of your
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project. You will also need to create a catch-all endpoint that routes all
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requests to your SPA.</p>
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<p>The following example demonstrates how to serve an SPA along with an API:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span><span class="w"> </span><span class="nn">flask</span><span class="w"> </span><span class="kn">import</span> <span class="n">Flask</span><span class="p">,</span> <span class="n">jsonify</span>
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<span class="n">app</span> <span class="o">=</span> <span class="n">Flask</span><span class="p">(</span><span class="vm">__name__</span><span class="p">,</span> <span class="n">static_folder</span><span class="o">=</span><span class="s1">'app'</span><span class="p">,</span> <span class="n">static_url_path</span><span class="o">=</span><span class="s2">"/app"</span><span class="p">)</span>
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<span class="nd">@app</span><span class="o">.</span><span class="n">route</span><span class="p">(</span><span class="s2">"/heartbeat"</span><span class="p">)</span>
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<span class="k">def</span><span class="w"> </span><span class="nf">heartbeat</span><span class="p">():</span>
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<span class="k">return</span> <span class="n">jsonify</span><span class="p">({</span><span class="s2">"status"</span><span class="p">:</span> <span class="s2">"healthy"</span><span class="p">})</span>
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<span class="nd">@app</span><span class="o">.</span><span class="n">route</span><span class="p">(</span><span class="s1">'/'</span><span class="p">,</span> <span class="n">defaults</span><span class="o">=</span><span class="p">{</span><span class="s1">'path'</span><span class="p">:</span> <span class="s1">''</span><span class="p">})</span>
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<span class="nd">@app</span><span class="o">.</span><span class="n">route</span><span class="p">(</span><span class="s1">'/<path:path>'</span><span class="p">)</span>
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<span class="k">def</span><span class="w"> </span><span class="nf">catch_all</span><span class="p">(</span><span class="n">path</span><span class="p">):</span>
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<span class="k">return</span> <span class="n">app</span><span class="o">.</span><span class="n">send_static_file</span><span class="p">(</span><span class="s2">"index.html"</span><span class="p">)</span>
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</pre></div>
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</div>
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</section>
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<h3>Navigation</h3>
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<li><a href="../index.html">Overview</a>
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<li><a href="index.html">Patterns for Flask</a>
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<li>Previous: <a href="subclassing.html" title="previous chapter">Subclassing Flask</a>
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<li>Next: <a href="../web-security.html" title="next chapter">Security Considerations</a></ul>
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