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gRPC & High Performance APIs · Lesson

Rich Error Models with google.rpc.Status

Go beyond plain status codes by attaching structured, machine-readable error details using the google.rpc.Status model and standard error detail types.

Limits of Plain Status Codes

A bare status code plus a message tells the client that something failed, but not the structured why. Clients often need field-level validation errors, retry hints, or quota info.

The rich error model attaches structured details to a status.

The google.rpc.Status Message

The core type is google.rpc.Status with three fields:

  • code: a numeric status code
  • message: developer-facing text
  • details: a repeated list of Any payloads

All lessons in this course

  1. Status Codes and Error Handling
  2. Custom Metadata Transmission
  3. Context and Deadlines
  4. Rich Error Models with google.rpc.Status
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