fix(js): Support Uint8Array and Buffer JSONL sources in OpenAI batch instrumentation - #2479
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Luca Forstner (lforst) merged 5 commits intoSep 17, 2026
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Luca Forstner (lforst)
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Luca Forstner (lforst)
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Sep 17, 2026
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Summary
When \jsonlRecords\ receives a resolved file source as a \Uint8Array, \ArrayBuffer, or Node \Buffer\ (for instance, when files are read via \ s.promises.readFile\ or fetched as array buffers), the previous type check \ ypeof resolvedFile === 'string'\ evaluated to false. As a result, the source reached the fallback check where it logged an invalid JSONL source error.
This PR updates \jsonlRecords\ to check for \Uint8Array, \ArrayBuffer, and \Buffer\ instances and decodes byte buffers using \TextDecoder\ so binary-backed JSONL file sources are parsed correctly.
Testing