feat(hono): Add hono.request spans for internal .request() calls#20843
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s1gr1d wants to merge 4 commits into
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feat(hono): Add hono.request spans for internal .request() calls#20843s1gr1d wants to merge 4 commits into
hono.request spans for internal .request() calls#20843s1gr1d wants to merge 4 commits into
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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Hono apps commonly use sub-apps and fetch data between them via
.request(), but these internal calls were invisible in traces. This PR addshono.requestchild spans so users can see the full picture when one Hono app calls another internally (single, parallel, or sequential calls).Also restructures the route hook into two-phases: sub-app references are collected at import time and instrumented when
sentry()activates. This ensures sub-apps mounted beforesentry()is registered aren't silently missed (without generating any spans or overhead if Sentry is never initialized).Step-by-step description:
@sentry/hono,earlyPatchHono()runs at module load time and hooksHonoBase.prototype.route. Any sub-app passed to.route()from this point on is collected into a pending set (but not yet instrumented).app.route('/prefix', subApp). Sub-apps are silently collected by the hook.app.use(sentry()), which callsapplyPatches(app).applyPatchespatchesapp.useon the main app instance (viaProxy) so all future middleware registrations are wrapped in spans.applyPatchespatchesapp.requeston the main app instance so internal.request()calls (for fetches) are traced ashono.requestspans..route()from now on is instrumented immediately at mount time.sentry()) are drained and retroactively instrumented: their middleware is wrapped in spans and their.request()is patched.Closes #20807