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feat(tonic-types): add ability to extract rich error details from google.rpc.Status #1430

merged 4 commits into from
Aug 25, 2023


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The tonic-types crate allows for extracting rich error details from a tonic::Status through the StatusExt trait. It does this by decoding the bytes returned by tonic::Status into a google.rpc.Status. However, it does not allow for extracting the error details directly from a google.rpc.Status instance.

This can present a problem if a message contains an internal google.rpc.Status value, which seems to be fairly common on some GCP bidi streams. Example message:

message AppendRowsResponse {
  message AppendResult {
    // ..

  oneof response {
    AppendResult append_result = 1;
    google.rpc.Status error = 2;
  // ..


  • Provide From impls for converting between types defined in "std_messages" and the generated protobuf types.
  • Add trait that implements a subset of the StatusExt functionality for pb::Status
  • Update existing code to leverage conversions

@LucioFranco LucioFranco added this pull request to the merge queue Aug 25, 2023
Merged via the queue into hyperium:master with commit 5fd635a Aug 25, 2023
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2 participants