Add set_trace example

[JoshuaMoelans]

Vercel Preview

DESCRIBE YOUR PR

Related to the feature added in getsentry/sentry-native#1137 & the update to native tracing in getsentry/sentry-native#1200

Since transactions no longer create a new trace_id, we want to document how to set up a trace boundary with sentry_set_trace().

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• Checked Vercel preview for correctness, including links
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• PR was reviewed and approved by a member of the Sentry docs team

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 12, 2025 3:20pm

2 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
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develop-docs	⬜️ Ignored (Inspect)			May 12, 2025 3:20pm

[codecov]

Bundle Report

Changes will increase total bundle size by 498 bytes (0.0%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-server-cjs	11.16MB	504 bytes (0.0%) ⬆️
sentry-docs-client-array-push	9.48MB	-6 bytes (-0.0%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	868.7kB	-0.0%
static/chunks/8165-*.js	-3 bytes	410.1kB	-0.0%
server/middleware-*.js	-5.55kB	1.0kB	-84.74%
server/middleware-*.js	5.55kB	6.55kB	555.3% ⚠️
static/pGLKlBmqvyAA0gd7_sRhe/_buildManifest.js (New)	578 bytes	578 bytes	100.0% 🚀
static/pGLKlBmqvyAA0gd7_sRhe/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/IBtnuQpFW6UYndnYDIoA9/_buildManifest.js (Deleted)	-578 bytes	0 bytes	-100.0% 🗑️
static/IBtnuQpFW6UYndnYDIoA9/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.75MB	-0.0%
../instrumentation.js	-3 bytes	1.08MB	-0.0%
9523.js	-3 bytes	1.05MB	-0.0%
../app/[[...path]]/page.js.nft.json	171 bytes	391.69kB	0.04%
../app/platform-redirect/page.js.nft.json	171 bytes	391.61kB	0.04%
../app/sitemap.xml/route.js.nft.json	171 bytes	389.58kB	0.04%