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#OtlpTraceExporter

#Import

typescript 
1import { OtlpTraceExporter } from "alepha/tracing";

#Overview

Posts finished spans to an OTLP/HTTP receiver as JSON (/v1/traces).

On only when OTEL_EXPORTER_OTLP_ENDPOINT is set, with the standard OTel variable names, so a backend's own setup guide applies as written. Spans are batched: a batch leaves when it reaches maxBatchSize (512) or flushIntervalMs (5 s) after its first span, and whatever is queued leaves on stop. The queue is bounded (maxQueueSize): past it, new spans are dropped rather than held.

Posted with the global fetch, never HttpClient: the server module imports the tracer, and an exporter that went through HttpClient would trace its own posts. A failed export logs once at warn and drops its batch: it never retries, never blocks a request and never throws into app code.

Node and Bun only. On Cloudflare Workers spans go to Cloudflare's own tracer, which exports them itself.