gRPC Tutorial

1. gRPC Introduction

What gRPC is and why it fits internal service-to-service APIs, and when REST is still the better choice.

2. Defining Services with Protobuf

A complete .proto file, protobuf field numbering, and scalar types.

3. Streaming RPCs

The four gRPC RPC types — unary, server streaming, client streaming and bidirectional streaming — with real use cases.

4. Error Handling & Interceptors

gRPC status codes, and unary interceptors for logging and authentication, with a complete example.

5. grpc-gateway & REST Bridging

Why and how to expose a gRPC service as REST/JSON for browsers using the grpc-gateway pattern.

6. gRPC Interview Questions

Commonly asked gRPC interview questions with clear, practical answers.