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7.10Key Takeaways
- gRPC uses Protocol Buffers (binary, typed) instead of JSON (text, untyped)
- grpcurl is the essential tool for manual gRPC exploration
- gRPC has its own status code system — learn the mappings to HTTP codes
- Test streaming (server, client, bidirectional) when the service supports it
- Deadline propagation is built-in — test timeout behavior
- The
.protofile is the source of truth for the API contract