fix(datadog): Encode metadata error value before embedding in error field - #174
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AndrewDryga merged 1 commit intoAug 5, 2026
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format_error/4 embedded the raw metadata :error value into the log line,
bypassing RedactorEncoder. A non-JSON-encodable term (e.g. an {:error,
reason} tuple) then crashed the encoder, and because maybe_merge is
left-biased the encoded copy of the metadata could not overwrite it. The
formatter crash surfaces as "FORMATTER CRASH: ..." fallback lines and the
original log event is lost entirely.
Run the value through encode/2 (which also applies redactors), matching
how every other part of the line is built.
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coverage: 100.0% (+0.3%) from 99.737% — doughsay:cd/encode-error-metadata-upstream into Nebo15:master |
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format_error/4embeds the raw metadata:errorvalue into the log line, bypassingRedactorEncoder. A non-JSON-encodable term (e.g. an{:error, reason}tuple) then crashes the encoder.This fix runs the value through
encode/2(which also applies redactors), matching how every other part of the line is built.