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feat(geocoding): fall back to Pelias /search when /autocomplete is empty

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Pelias /autocomplete deliberately excludes the address layer as a
performance optimization, so queries like "Marktstätte Konstanz"
(street + locality) return 0 venue matches even though they're clearly
in the index. /search covers all layers including addresses and streets.

Query /autocomplete first (fast, fuzzy, great for venue names), and if
it returns nothing, try /search. Best of both worlds: quick matches for
"Konzil Restaurant" plus reliable matches for street addresses.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Till JS 2026-04-11 17:54:57 +02:00
parent 020f327503
commit 69ce4c2c25
1 changed files with 24 additions and 6 deletions
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30
services/mana-geocoding/src/routes/geocode.ts
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@ -77,15 +77,33 @@ export function createGeocodeRoutes(config: Config) {
params.set('focus.point.lon', focusLon);
}
const response = await fetch(`${config.pelias.apiUrl}/autocomplete?${params}`);
if (!response.ok) {
console.error(`Pelias autocomplete error: ${response.status} ${response.statusText}`);
return c.json({ results: [], error: 'geocoding_unavailable' }, 502);
// Query Pelias /autocomplete first (fast, fuzzy, good for venue names).
// Autocomplete intentionally excludes the address layer as a perf
// optimization, so if it returns nothing we fall back to /search which
// covers streets/addresses too. This gives us the best of both worlds:
// quick venue matches for names like "Konzil Restaurant" AND reliable
// address matches for queries like "Marktstätte Konstanz".
let features: PeliasFeature[] = [];
const autocompleteRes = await fetch(`${config.pelias.apiUrl}/autocomplete?${params}`);
if (autocompleteRes.ok) {
const data = (await autocompleteRes.json()) as PeliasResponse;
features = data.features;
}
const data = (await response.json()) as PeliasResponse;
const results = data.features.map(normalizePeliasFeature);
if (features.length === 0) {
const searchRes = await fetch(`${config.pelias.apiUrl}/search?${params}`);
if (searchRes.ok) {
const data = (await searchRes.json()) as PeliasResponse;
features = data.features;
} else if (!autocompleteRes.ok) {
console.error(
`Pelias error: autocomplete=${autocompleteRes.status} search=${searchRes.status}`
);
return c.json({ results: [], error: 'geocoding_unavailable' }, 502);
}
}
const results = features.map(normalizePeliasFeature);
searchCache.set(cacheKey, results);
return c.json({ results });
});