docs(dart): Cover stream mode across tracing pages#18611
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Pull request overview
Updates the Dart and Flutter tracing documentation to clarify how stream mode (span streaming) affects manual/automatic instrumentation and distributed trace continuation, aligning the tracing pages with the newer span APIs.
Changes:
- Adds stream mode callouts to manual instrumentation pages, directing readers to
Sentry.startSpanAPIs (since transaction APIs are no-ops in stream mode). - Adds stream mode callouts to automatic instrumentation pages noting that auto-instrumentation switches to streaming span APIs automatically.
- Adds stream mode callouts to trace propagation pages noting that continuing an incoming distributed trace isn’t supported yet in stream mode.
Reviewed changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| docs/platforms/dart/guides/flutter/tracing/trace-propagation/index.mdx | Adds a stream mode limitation callout for continuing incoming distributed traces. |
| docs/platforms/dart/guides/flutter/tracing/instrumentation/custom-instrumentation.mdx | Adds a stream mode callout pointing manual instrumentation to Sentry.startSpan and New Spans. |
| docs/platforms/dart/guides/flutter/tracing/instrumentation/automatic-instrumentation.mdx | Adds a stream mode callout stating auto-instrumentation switches APIs automatically and links to New Spans. |
| docs/platforms/dart/common/tracing/trace-propagation/index.mdx | Adds a stream mode limitation callout for continuing incoming distributed traces. |
| docs/platforms/dart/common/tracing/trace-propagation/custom-instrumentation/index.mdx | Adds a stream mode limitation callout and links to New Spans. |
| docs/platforms/dart/common/tracing/instrumentation/custom-instrumentation.mdx | Adds a stream mode callout pointing manual instrumentation to Sentry.startSpan and New Spans. |
| docs/platforms/dart/common/tracing/instrumentation/automatic-instrumentation.mdx | Adds a stream mode callout stating auto-instrumentation switches APIs automatically and links to New Spans. |
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Document stream mode (SentryTraceLifecycle.stream) for the Dart and Flutter SDKs, where spans are sent as they finish instead of being batched into a transaction. Mirrors the Python New Spans pages. - New Spans page: enabling stream mode, manual instrumentation with startSpan/startSpanSync/startInactiveSpan, typed attributes, status, beforeSendSpan/ignoreSpans, sampling, and verification - Migration guide: mapping transaction-based APIs to the new span APIs - Platform-includes split init snippets for Flutter vs plain Dart Co-Authored-By: Claude <noreply@anthropic.com>
Point custom instrumentation to the new Sentry.startSpan APIs for stream mode, note that automatic instrumentation switches to the streaming span API automatically, and flag that continuing an incoming distributed trace isn't supported yet in stream mode. Covers both Dart and Flutter. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Convert the custom-instrumentation code snippets to dual Transaction Mode (Default) / Stream Mode tabs, mirroring the Python docs approach. Reword prose to cover both modes. Co-Authored-By: Claude <noreply@anthropic.com>
Use Sentry.startSpan (async) in all stream mode snippets instead of mixing in startSpanSync; startSpanSync is documented once in New Spans as the synchronous-signature variant. Co-Authored-By: Claude <noreply@anthropic.com>
Genericize automatic-instrumentation and performance-metrics prose to cover both modes, and add a Stream Mode tab to custom performance metrics (setMeasurement -> span attributes). Co-Authored-By: Claude <noreply@anthropic.com>
Add a New Spans pointer and mode-aware wording to the tracing setup and Verify sections, note that distributed-trace continuation and transaction naming differ in stream mode, and genericize the features overview. Co-Authored-By: Claude <noreply@anthropic.com>
Use SentryAttribute.stringArray/intArray/boolArray for the array cases, matching the transaction-mode setData arrays. Co-Authored-By: Claude <noreply@anthropic.com>
Remove the implementation-specific envelope content type check from the Streamed Spans setup verification. Keep the customer-facing dashboard and SDK log checks aligned with the Python guide. Co-Authored-By: Claude <noreply@anthropic.com>
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DESCRIBE YOUR PR
Documents stream mode across the Dart/Flutter tracing pages. Following the Python precedent, code snippets gain a
Stream Modetab next toTransaction Mode (Default)(nothing is removed), and prose is genericized to cover both modes.startSpan-onlysetMeasurement→ span attributesStacked on #18554 — review/merge that first.
Ref: getsentry/sentry-dart#3886
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