Securing a Go Microservice with JWT

Securing a Go Microservice with JWT. JWT secures the service-to-service communication and also can pass end-user context across microservices. A JWT token can be used to carry the identity of the calling microservice. Implementing the JWT endpoint with a go module.

Securing a Go Microservice with JWT

JSON Web Tokens (JWTs) offer a mechanism to share a set of claims or attributes from client to a server providing microservices in a cryptographically secure way. JWT secures the service-to-service communication and also can pass end-user context across microservices.

A JWT token can be used to carry the identity of the calling microservice, or the identity of the client or the system which initiated the request. It can be used to communicate authorization and validation attributes between multiple clients and servers. Using such attributes secures the microservices and makes sure that only authorized access occurs.

In this post, we are going to explore the role that JWT plays in securing service-to-service communication in an example golang microservices deployment. In the golang programming ecosystem, there is an open source jwt-go package that enables us to generate the JWT token.

First, we are going to use this package to generate the JWT token and create an endpoint API that serves the token. You also could generate the JWT using an auth system such as FusionAuth, but it can be educational to see how JWTs are created at a lower level.

Then, we will be creating the microservice server. There will be an authorization middleware that will execute before access is allowed to the golang microservices. This middleware will take the JWT token and validate it to ensure authorized access to the microservices.

So, let’s get started!

Prerequisites

• Install  Golang 1.15.8
• Basic knowledge of JWT based authentication
• Basic knowledge of golang programming

jwt golang microservices auth

It provides libraries to implement components for service discovery, async jobs, authentication, authorization, caching, metrics, tracing, rate-limiting...etc It all began when I started to build some web services in golang. and everytime I have to create the whole architecture from scratch than solving whatever problem I was trying to solve.

In this article, look at different ways to test microservices and how you can have a suitable testing strategy to begin with.

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This article describes the nature of microservices applications, contrasts them with monolithic apps, and talk about microservices in data management.

This article describes the nature of microservices applications, contrasts them with monolithic apps, and talk about microservices in data management.