v0.13.0#165
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Add a `client_computed_stats` parameter to `WasmSpanState::new` and set `builder.set_client_computed_stats()` so the exporter sends the `Datadog-Client-Computed-Stats: true` header. The tracer needs this when it runs in APM-standalone (apmTracingEnabled=false) so the agent skips its own APM stats/sampling. The header is also sent whenever `stats_enabled` is set: computing stats client-side requires telling the agent to skip its own, otherwise the same traces are counted twice. Enabling stats therefore always implies the header, so the flags are OR'd in the binding rather than relying on the caller to keep them in sync. libdatadog's TraceExporterBuilder already supports the flag; the WASM binding just never called it. Adds pipeline tests asserting the header is present when client_computed_stats OR stats_enabled is set, and absent when both are off.
ekump
approved these changes
Jul 8, 2026
Overall package sizeSelf size: 30.09 MB Dependency sizes| name | version | self size | total size | |------|---------|-----------|------------|🤖 This report was automatically generated by heaviest-objects-in-the-universe |
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Release 0.13.0.
Includes:
Datadog-Client-Computed-Statswhen enabled (feat(pipeline): send Datadog-Client-Computed-Stats when enabled #164) — the exporter now advertises the header when the tracer computes stats client-side or runs in APM-standalone, so the agent skips its own APM stats/sampling.Unblocks dd-trace-js native-spans (#9139): ~46 ASM-standalone system-tests asserting the header, plus client-computed stats being honored.
Rebase-and-merge to
v0.xto trigger the Release workflow (npm publish gate +v0.13.0tag).