This example will show you how you can create an JWT service using Fiber. (HS256)

Login using username and password to retrieve a token.

curl --data "user=john&pass=doe" http://localhost:3000/login

Response

{
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhZG1pbiI6dHJ1ZSwiZXhwIjoxNjg0NzEwNTMxLCJuYW1lIjoiSm9obiBEb2UifQ.kbZn3zXPIdZt4hJIb3EvodVh3UO3jdTyPgxK8huxDFM"
}

Request a restricted resource using the token in Authorization request header.

curl localhost:3000/restricted -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhZG1pbiI6dHJ1ZSwiZXhwIjoxNjg0NzEwNTMxLCJuYW1lIjoiSm9obiBEb2UifQ.kbZn3zXPIdZt4hJIb3EvodVh3UO3jdTyPgxK8huxDFM"

Response

Welcome John Doe

To make everything easy, you can use the make commands to run the server and the client to see how this work. In the folder of the project:

First run the server with:

make run-server

And then you can run the times you want the client:

make run-client

After all, you can use this command for cleaning purposes:

make clean

Note: The command in this make file run in a Linux terminal.

This example was written for this post on my blog: 'Building an Authorization Service With Fiber Using JWT'