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Add OTel (#114)

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* init otel

* deflock group

* no internal metrics

* only log errors for now
This commit is contained in:
Will Freeman
2026-04-26 13:20:32 -06:00
committed by GitHub
parent c99d4cf597
commit a39f1a6a36
10 changed files with 533 additions and 103 deletions
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api/services/NominatimClient.ts
+40 -13
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@@ -1,6 +1,8 @@
import { createCache, Cache } from 'cache-manager';
import { Type, Static } from '@sinclair/typebox';
import { type Span, SpanKind, SpanStatusCode, context, trace } from '@opentelemetry/api';
import { tracer, otelLogger, SeverityNumber } from '../telemetry';
const { DiskStore } = require('cache-manager-fs-hash');
export const NominatimResultSchema = Type.Object({
@@ -53,7 +55,7 @@ const cache: Cache = createCache({
export class NominatimClient {
baseUrl = 'https://nominatim.openstreetmap.org/search';
async geocodePhrase(query: string, includeGeoJson: boolean = false): Promise<NominatimResult[]> {
async geocodePhrase(query: string, includeGeoJson: boolean = false, parentSpan?: Span): Promise<NominatimResult[]> {
const cacheKey = `geocode:${query}`;
const cached = await cache.get(cacheKey);
if (cached) {
@@ -61,21 +63,46 @@ export class NominatimClient {
}
const geojsonParam = includeGeoJson ? '&polygon_geojson=1' : '';
const url = `${this.baseUrl}?q=${encodeURIComponent(query)}&format=json&addressdetails=1&limit=8&countrycodes=us&dedupe=1${geojsonParam}`;
const response = await fetch(url, {
headers: {
'User-Agent': 'DeFlock/1.2',
},
});
if (!response.ok) {
throw new Error(`Failed to geocode phrase: ${response.status}`);
const ctx = parentSpan ? trace.setSpan(context.active(), parentSpan) : context.active();
const span = tracer.startSpan('nominatim.geocode', {
kind: SpanKind.CLIENT,
attributes: { 'peer.service': 'nominatim', 'http.request.method': 'GET' },
}, ctx);
try {
const response = await fetch(url, {
headers: { 'User-Agent': 'DeFlock/1.2' },
});
span.setAttribute('http.response.status_code', response.status);
if (!response.ok) {
const body = await response.text();
otelLogger.emit({
severityNumber: SeverityNumber.ERROR,
severityText: 'ERROR',
body: `Nominatim error: ${response.status}`,
attributes: {
'nominatim.status_code': response.status,
'nominatim.response_body': body,
'http.url': url,
},
context: trace.setSpan(context.active(), span),
});
throw new Error(`Failed to geocode phrase: ${response.status}`);
}
const json = await response.json();
await cache.set(cacheKey, json);
return json;
} catch (err) {
span.recordException(err as Error);
span.setStatus({ code: SpanStatusCode.ERROR, message: (err as Error).message });
span.setAttribute('error.type', 'upstream_error');
throw err;
} finally {
span.end();
}
const json = await response.json();
await cache.set(cacheKey, json);
return json;
}
async geocodeSingleResult(query: string): Promise<NominatimResult | null> {
const results = await this.geocodePhrase(query, true);
async geocodeSingleResult(query: string, parentSpan?: Span): Promise<NominatimResult | null> {
const results = await this.geocodePhrase(query, true, parentSpan);
if (!results.length) return null;