fix: set span error states when fetch operations fail (#501)

mrstork · web-flow · commit 63938b089d7f · 2025-10-24T15:10:15.000-04:00
diff --git a/packages/otel/src/instrumentations/fetch.ts b/packages/otel/src/instrumentations/fetch.ts
@@ -61,6 +61,7 @@ export class FetchInstrumentation implements Instrumentation {
       'http.response.status_code': response.status,
       ...this.prepareHeaders('response', response.headers),
     })
+    span.setStatus({ code: response.status >= 400 ? api.SpanStatusCode.ERROR : api.SpanStatusCode.UNSET })
   }
 
   private prepareHeaders(type: 'request' | 'response', headers: Headers): api.Attributes {

Original file line number	Diff line number	Diff line change
`@@ -61,6 +61,7 @@ export class FetchInstrumentation implements Instrumentation {`
`61`	`61`	`'http.response.status_code': response.status,`
`62`	`62`	`...this.prepareHeaders('response', response.headers),`
`63`	`63`	`})`
	`64`	`+ span.setStatus({ code: response.status >= 400 ? api.SpanStatusCode.ERROR : api.SpanStatusCode.UNSET })`
`64`	`65`	`}`
`65`	`66`
`66`	`67`	`private prepareHeaders(type: 'request' \| 'response', headers: Headers): api.Attributes {`