13 lines
469 B
Markdown
13 lines
469 B
Markdown
# gRPC
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## Propagation
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Propagation is how `SpanContext` is transmitted on the wire in an gRPC request.
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**TODO: review and close on binary protocol and metadata name**
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The propagation MUST inject a `SpanContext` as a gRPC metadata `grpc-trace-bin`
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and MUST extract a `SpanContext` from the gRPC metadata. Serialization format is
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configurable. The default serialization format should be used is [W3C binary
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trace context](https://w3c.github.io/trace-context-binary/).
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