GRPC supports interceptor features, enhancing the flexibility and extensibility of GRPC.

Interceptor Usage

Server

Use grpcx.Server.ChainUnary to add extra server interceptors:

c := grpcx.Server.NewConfig()
c.Options = append(c.Options, []grpc.ServerOption{
    grpcx.Server.ChainUnary(
        grpcx.Server.UnaryValidate,
    )}...,
)
s := grpcx.Server.New(c)
user.Register(s)
s.Run()

Client

Use grpcx.Client.ChainUnary to add extra server interceptors:

conn = grpcx.Client.MustNewGrpcClientConn("demo", grpcx.Client.ChainUnary(
    grpcx.Client.UnaryTracing,
))

Interceptor List

The grpcx component of the framework offers a series of commonly used interceptors, some built-in and others optional.

Interceptor	Usage Part	Built-in	Description
UnaryError	Client	Yes	Supports the framework's error handling component.
UnaryTracing	Client	Yes	Supports link tracing.
StreamTracing	Client	Yes	Supports link tracing (long connection).
UnaryError	Server	Yes	Supports the framework's error handling component.
UnaryRecover	Server	Yes	Supports automatic capture of server panic without crashing.
UnaryAllowNilRes	Server	Yes	Supports returning nil Res objects.
UnaryValidate	Server	No	Supports the framework's automatic error validation, based on struct tags. Needs to be manually introduced.
UnaryTracing	Server	Yes	Supports link tracing.
StreamTracing	Server	Yes	Supports link tracing (long connection).