* Single-request in-memory tracer (mirrors `api.otel-usage.ts`). Everything * happens inside one POST, so spans collect into a local array returned in the * response body.
()
| 26 | * response body. |
| 27 | */ |
| 28 | function createLocalCaptureTracer(): { |
| 29 | tracer: Tracer |
| 30 | spans: Array<CapturedSpan> |
| 31 | } { |
| 32 | const spans: Array<CapturedSpan> = [] |
| 33 | let spanSeq = 0 |
| 34 | const tracer: Tracer = { |
| 35 | startSpan(name, options = {}, _ctx?: Context): Span { |
| 36 | const id = `span-${spanSeq++}` |
| 37 | const attributes: Record<string, AttributeValue> = {} |
| 38 | for (const [k, v] of Object.entries(options.attributes ?? {})) { |
| 39 | if (v !== undefined) attributes[k] = v |
| 40 | } |
| 41 | const captured: CapturedSpan = { |
| 42 | name, |
| 43 | kind: options.kind, |
| 44 | attributes, |
| 45 | status: { code: 0 }, |
| 46 | ended: false, |
| 47 | } |
| 48 | spans.push(captured) |
| 49 | const span: Span = { |
| 50 | spanContext(): SpanContext { |
| 51 | return { traceId: 'otel-media-trace', spanId: id, traceFlags: 1 } |
| 52 | }, |
| 53 | setAttribute(key, value) { |
| 54 | captured.attributes[key] = value |
| 55 | return span |
| 56 | }, |
| 57 | setAttributes(next) { |
| 58 | for (const [k, v] of Object.entries(next)) { |
| 59 | captured.attributes[k] = v as AttributeValue |
| 60 | } |
| 61 | return span |
| 62 | }, |
| 63 | addEvent() { |
| 64 | return span |
| 65 | }, |
| 66 | addLink() { |
| 67 | return span |
| 68 | }, |
| 69 | addLinks() { |
| 70 | return span |
| 71 | }, |
| 72 | setStatus(status) { |
| 73 | captured.status = status |
| 74 | return span |
| 75 | }, |
| 76 | updateName(next) { |
| 77 | captured.name = next |
| 78 | return span |
| 79 | }, |
| 80 | end() { |
| 81 | captured.ended = true |
| 82 | }, |
| 83 | isRecording() { |
| 84 | return !captured.ended |
| 85 | }, |