<div style="display: flex; flex-wrap: wrap; white-space: pre-wrap; align-items: center; "><img height="20" width="20" style="border-radius:50%; margin-right: 4px;" decoding="async" src="https://avatars.githubusercontent.com/u/50826859?s=20&v=4" /><strong>hlfan</strong> left a comment <a href="https://github.com/openstreetmap/openstreetmap-website/pull/6255#issuecomment-3121874355">(openstreetmap/openstreetmap-website#6255)</a></div>
<p dir="auto">I could see the whole thing, including handleExportSuccess and handleExportError, made into a higher-order function that's called like:</p>
<div class="highlight highlight-source-js" dir="auto"><pre class="notranslate"><span class="pl-smi">document</span><span class="pl-kos">.</span><span class="pl-en">querySelector</span><span class="pl-kos">(</span><span class="pl-s">".export_form"</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">addEventListener</span><span class="pl-kos">(</span><span class="pl-s">"turbo:submit-end"</span><span class="pl-kos">,</span> <span class="pl-en">getTurboDownload</span><span class="pl-kos">(</span><span class="pl-s">"map.osm"</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p dir="auto">Or a more modular version with a callback:</p>
<div class="highlight highlight-source-js" dir="auto"><pre class="notranslate"><span class="pl-smi">document</span><span class="pl-kos">.</span><span class="pl-en">querySelector</span><span class="pl-kos">(</span><span class="pl-s">".export_form"</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">addEventListener</span><span class="pl-kos">(</span><span class="pl-s">"turbo:submit-end"</span><span class="pl-kos">,</span> <span class="pl-en">getTurboBlobHandler</span><span class="pl-kos">(</span><span class="pl-s1">blob</span> <span class="pl-c1">=></span> <span class="pl-en">downloadBlob</span><span class="pl-kos">(</span><span class="pl-s1">blob</span><span class="pl-kos">,</span> <span class="pl-s">"map.osm"</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p dir="auto">But in any case, I'd like to have <code class="notranslate">downloadBlob</code> separately to reuse it for the directions geojson download.</p>
<p dir="auto">As for where to store them, that's probably a question of whether there are any things to download outside of the index/map_layout pages; otherwise, I'd put it there and in the OSM namespace.</p>

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