Book Image

gRPC Go for Professionals

By : Clément Jean
Book Image

gRPC Go for Professionals

By: Clément Jean

Overview of this book

In recent years, the popularity of microservice architecture has surged, bringing forth a new set of requirements. Among these, efficient communication between the different services takes center stage, and that's where gRPC shines. This book will take you through creating gRPC servers and clients in an efficient, secure, and scalable way. However, communication is just one aspect of microservices, so this book goes beyond that to show you how to deploy your application on Kubernetes and configure other tools that are needed for making your application more resilient. With these tools at your disposal, you’ll be ready to get started with using gRPC in a microservice architecture. In gRPC Go for Professionals, you'll explore core concepts such as message transmission and the role of Protobuf in serialization and deserialization. Through a step-by-step implementation of a TODO list API, you’ll see the different features of gRPC in action. You’ll then learn different approaches for testing your services and debugging your API endpoints. Finally, you’ll get to grips with deploying the application services via Docker images and Kubernetes.
Table of Contents (13 chapters)

Logging API calls

In this section, let us simplify the log interceptor. This will be like what we did in the previous section, but we are going to use another middleware: the logging middleware.

While this middleware integrates with a lot of different loggers, we are going to use it with the default log package in Golang. It will then appear easy to integrate with your favorite logger.

Important note

The next command is only needed if you did not get the previous dependency on go-grpc-middleware. If you followed section by section, you should not need it.

To get started, let us get the dependency on the middleware. In the server folder, we are going to run the following command:

$ go get

Now, we can start creating our logger. We are going to create it by defining a function that returns a loggerFunc. This is a function that has the following signature:

func(ctx context.Context, lvl...