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Implement simple query cache for Overpass/OSM search

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So when we return to the search route, we don't have to refetch
This commit is contained in:
Râu Cao 2026-01-27 09:50:41 +07:00
parent 156280950f
commit a8dc4c81e4
Signed by: raucao
GPG Key ID: 37036C356E56CC51
1 changed files with 17 additions and 1 deletions
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18
app/services/osm.js
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@ -4,8 +4,18 @@ export default class OsmService extends Service {
@service settings;
controller = null;
cachedResults = null;
lastQueryKey = null;
async getNearbyPois(lat, lon, radius = 50) {
const queryKey = `${lat},${lon},${radius}`;
// Return cached results if the query is identical to the last one
if (this.lastQueryKey === queryKey && this.cachedResults) {
console.log('Returning cached Overpass results for:', queryKey);
return this.cachedResults;
}
// Cancel previous request if it exists
if (this.controller) {
this.controller.abort();
@ -33,7 +43,13 @@ out center;
const data = await res.json();
// Normalize data
return data.elements.map(this.normalizePoi);
const results = data.elements.map(this.normalizePoi);
// Update cache
this.lastQueryKey = queryKey;
this.cachedResults = results;
return results;
} catch (e) {
if (e.name === 'AbortError') {
console.log('Overpass request aborted');