ASP.NET Core 3.1 - JWT Authentication Tutorial with Example API (JSON Web Token (JWT))

JSON Web Token (JWT) is a means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is digitally signed using JSON Web Signature (JWS) and/or encrypted using JSON Web Encryption (JWE).

This Tutorial we are going to build with Asp.net Core 3.1


In this tutorial, we'll go through a simple example of how to implement custom JWT (JSON Web Token) authentication in an ASP.NET Core 3.1 API with C#.

Tools required to run the ASP.NET Core 3.1 JWT Example Locally

What is JWT , please explain with Examples.

What is JWT , please explain with Examples.

Answers :-

Authorize with JWT in ASP.NET Core 3.1 Web API. ASP.NET Core 3.1 provides native support that allows you to authorize endpoints using JSON web Tokens (JWT) i.e. without any dependency on third party packages. You may need additional config such as Issuer and Audience addresses if you wish to validate those

Examples

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Asp.net core 3.0 Web Api token based authentication example using JWT in VS 2019

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 In this tutorial we are going to cover web api token based authentication example using JWT in asp.net core 3.0with vs 2019

We will build it from scratch step by step

1. First we need to developer web api project , and then we will implement Microsoft Identity and then finally we will impement token based authentication using JWT in asp.net core 3.0 web API application.

Conditions

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We before go create WEB API token based authentication

we need to install following tools

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1. VS 2019

2. .NET Core 3.0

3. Postman

4. Sql Server

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How to implement token based authentication (JWT) in asp.net core 3.1 web api.?

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Lets start implement web api token based authentication example using asp.net core 3.0

Step#1

How How to create asp.net core 3.0 web api using VS2019

Step#2

How to setup Database and implement Microsoft Identity in asp.net core 3.1 Web API Project

In this steop we will setup database in aps.net core 3.1 web api project, so go to project folder structure and then open appsettings.json file and then set connection string as per the syntax see the below example

-         Now need to install Entity Framework Core Package 3.1

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