[SDTEST-3772] Implement TelemetryExporter#266
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Adds TelemetryExporter — a file-backed batching exporter that serialises telemetry items to disk and uploads them as message-batch envelopes via TelemetryApi. Refactors the internal wire types (TelemetryMetric, TelemetryLog.Logs, TelemetryAppStarted/Heartbeat/Closing, TelemetryMessageBatch) into public Codable structs that conform to a new TelemetryPayload protocol. Cleans up ClosureDataUploader / DataUploadStatus to use typed APICallError throws throughout, and extends MockBackend with an /api/v2/apmtelemetry endpoint and waitForTelemetry() helper. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
anmarchenko
approved these changes
Jun 1, 2026
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Summary
TelemetryExporter— a file-backed batching exporter that writes telemetry items to disk and uploads them asmessage-batchenvelopes viaTelemetryApiTelemetryMetric,TelemetryLog.Logs,TelemetryAppStarted/Heartbeat/Closing,TelemetryMessageBatch) into publicCodablestructs conforming to a newTelemetryPayloadprotocol; replaces the oldTelemetryBatchItemenumClosureDataUploader/DataUploadStatusto use typedAPICallErrorthrows throughout; extendsMockBackendwith/api/v2/apmtelemetryendpoint andwaitForTelemetry()helperTest plan
TelemetryExporterTests/testExportMetrics_uploadsWellFormedEnvelope— single metric item produces a validmessage-batchenvelopeTelemetryExporterTests/testExportLogs_uploadsWellFormedEnvelope— single log item produces a valid envelopeTelemetryExporterTests/testExportMultipleItems_batchedInOneFile_uploadedAsOneEnvelope— multiple items written to one file are batched into a single uploadTelemetryExporterTests/testExportMultipleItems_acrossSeparateFiles_eachUploadedIndependently— items written to separate files produce independent uploadsEventsExportertest suite passes with no regressionsJira: SDTEST-3772
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