go-grpc-middleware - Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.

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gRPC Go Middleware: interceptors, helpers, utilities. gRPC Go recently acquired support for Interceptors, i.e. middleware that is executed either on the gRPC Server before the request is passed onto the user's application logic, or on the gRPC client either around the user call. It is a perfect way to implement common patterns: auth, logging, message, validation, retries or monitoring.

https://github.com/grpc-ecosystem/go-grpc-middleware

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