Using AWS Lambda Extensions to Run Post-Response Telemetry Flush

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Posted on Wed Apr 15 2026 | 2:30 pm

At Lead Bank, synchronous telemetry flushing caused intermittent exporter stalls to become user-facing 504 gateway timeouts. By leveraging AWS Lambda's Extensions API and goroutine chaining in Go, flush work is moved off the response path, returning responses immediately while preserving full observability without telemetry loss.

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