gRPC supports various methods of authentication, primarily SSL/TLS and token-based authentication.
For SSL/TLS, you need to generate certificates for the client and server. The server verifies the client’s certificate during the handshake process. In gRPC, this is done by setting ServerCredentials when creating the server and ClientCredentials when creating the client.
Token-based authentication involves sending a token in metadata with each request. This can be implemented using interceptors that add tokens to requests on the client side and verify them on the server side.
