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Clarify that unknown fields must be ignored when receiving OTLP/JSON #2816

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merged 4 commits into from
Sep 27, 2022
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Clarify that unknown fields must be ignored when receiving OTLP/JSON #2816

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4e7077a
Clarify that unknown fields must be ignored when receiving OTLP/JSON
tigrannajaryan Sep 20, 2022
c23843b
Remove unnecessary sentence
tigrannajaryan Sep 26, 2022
ce94b2d
Fix typo
tigrannajaryan Sep 27, 2022
0cff800
Merge branch 'main' into feature/tigran/clairfy-json-unknown-fields
yurishkuro Sep 27, 2022
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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -36,6 +36,8 @@ release.

- Add user agent to OTLP exporter specification
([#2684](https://github.com/open-telemetry/opentelemetry-specification/pull/2684))
- Clarify that unknown fields must be ignored when receiving OTLP/JSON
([#2816](https://github.com/open-telemetry/opentelemetry-specification/pull/2816))

### SDK Configuration

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5 changes: 5 additions & 0 deletions specification/protocol/otlp.md
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Expand Up @@ -419,6 +419,11 @@ for mapping between Protobuf and JSON, with the following deviations from that m
represented like this:
{ "kind": 2, ... }

- OTLP/JSON receivers MUST ignore message fields with unknown names and MUST unmarshal the
message as if the unknown field was not present in the payload.
This aligns with the behavior of the Binary Protobuf unmarshaler and ensures that adding
new fields to OTLP messages does not break existing receivers.

Note that according to [Protobuf specs](
https://developers.google.com/protocol-buffers/docs/proto3#json) 64-bit integer
numbers in JSON-encoded payloads are encoded as decimal strings, and either
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