Defining a Basic gRPC Service

Services and RPCs

gRPC allows you to define services and remote procedure calls (RPCs). You define a service containing rpc methods that specify the request and response message types.

``protobuf service Greeter { rpc SayHello (HelloRequest) returns (HelloReply); } ` This is called a **Unary RPC** (one request, one response).

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Your Challenge:

1. Define a service named UserService. 2. Inside it, define an rpc method named GetUser. 3. It should take GetUserRequest and return UserProfile`.