netcore2-jwt

This is a .NET Core 2 sample project showing how to use JWTs (JSON Web Tokens). It is the companion code for the article Securing ASP.NET Core 2.0 Applications with JWTs.

The JWT project defines a Web API application whose authentication is based on JWT.

Running the project

The solution contains a Test project with four integration tests validating the application behaviour. You can run the tests from Visual Studio 2017 or by typing dotnet test in a command window.

If you want to interactively test the application, you can use Postman or any other Http client.

1. Run the project from Visual Studio 2017 or by typing dotnet run in a command window
2. Launch Postman and make a GET request as follows:

    GET http://localhost:63939/api/books HTTP/1.1
    cache-control: no-cache
    Accept: */*
    Host: localhost:63939
    accept-encoding: gzip, deflate
    Connection: keep-alive

This should return a 401 HTTP status code (Unauthorized)

3. Make a POST request like the following:

    POST http://localhost:63939/api/token HTTP/1.1
    cache-control: no-cache
    Content-Type: application/json
    Accept: */*
    Host: localhost:63939
    accept-encoding: gzip, deflate
    content-length: 39
    Connection: keep-alive
    
    {username: "mario", password: "secret"}

It returns a JSON object like the following:

    {
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJNYXJpbyBSb3NzaSIsImVtYWlsIjoibWFyaW8ucm9zc2lAZG9tYWluLmNvbSIsImp0aSI6IjVkNTRkMzIwLWQ3N2EtNDFhMy1iZTcwLTc2M2UyMGRmMjE3MyIsImV4cCI6MTUxMTE3NzQwMywiaXNzIjoiaHR0cDovL2xvY2FsaG9zdDo2MzkzOS8iLCJhdWQiOiJodHRwOi8vbG9jYWxob3N0OjYzOTM5LyJ9.g0yooTf3DJO43yL8bT4VE_VIdc5WHFhCVb3u9Jg7VTk"
    }

4. The following GET request

    GET http://localhost:63939/api/books HTTP/1.1
    cache-control: no-cache
    Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJNYXJpbyBSb3NzaSIsImVtYWlsIjoibWFyaW8ucm9zc2lAZG9tYWluLmNvbSIsImp0aSI6IjVkNTRkMzIwLWQ3N2EtNDFhMy1iZTcwLTc2M2UyMGRmMjE3MyIsImV4cCI6MTUxMTE3NzQwMywiaXNzIjoiaHR0cDovL2xvY2FsaG9zdDo2MzkzOS8iLCJhdWQiOiJodHRwOi8vbG9jYWxob3N0OjYzOTM5LyJ9.g0yooTf3DJO43yL8bT4VE_VIdc5WHFhCVb3u9Jg7VTk
    Accept: */*
    Host: localhost:63939
    accept-encoding: gzip, deflate
    Connection: keep-alive

returns the following response:

	[
	    {
	        "author": "Ray Bradbury",
	        "title": "Fahrenheit 451",
			"ageRestriction": false
	    },
	    {
	        "author": "Gabriel García Márquez",
	        "title": "One Hundred years of Solitude",
			"ageRestriction": false
	    },
	    {
	        "author": "George Orwell",
	        "title": "1984",
			"ageRestriction": false
	    },
	    {
	        "author": "Anais Nin",
	        "title": "Delta of Venus",
			"ageRestriction": true
	    }
	]