JWT Auth with NodeJS and PassportJS

JWT Auth with NodeJS and PassportJS

JWT is an open standard for transferring data securely between two parties. It is used with authentication systems to make authenticated requests. It comprises header, payload, and signature. JWT is a stateless authentication mechanism i.e it maintains sessions in the client-side itself instead of storing it in the server. JWT Auth with NodeJS and PassportJS

JWT is an open standard for transferring data securely between two parties. It is used with authentication systems to make authenticated requests. It comprises headerpayload, and signature. JWT is a stateless authentication mechanism i.e it maintains sessions in the client-side itself instead of storing it in the server.

The workflow of JWT is so simple. JWT is created with a secret key where the secret key will be kept with your application privately. When your application receives a JWT key from any client, your application verifies the key with the private key. Modification of the public key from the client will result in authentication failure. JWT consist of three distinct parts separated with dots. The initial part is the Header. The second part is the payload and the third is the Signature. The syntax of the JWT token is

HEADER + '.' + PAYLOAD + '.' + SIGNATURE

Passport JS is authentication middleware for Node and Express JS. Passport JS can be used with any Express JS applications. It provides us with a strategy called Passport JWT that helps us to make authenticated requests and also to verify if the token is valid or not.

Table of Content

  1. Initialize a Node Project
  2. Creating JWT Token
  3. Implementing passport’s JWT strategy

nodejs expressjs passportjs jwt

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