This article describe about JWT token. How JWT helps in authentication? and how to use JWT?

Hi Hacker

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Let’s Learn About JWT token …….

JWT stands for JSON web token, and it is defined in RFC 7519. It is a token format used to asset claims between two parties, commonly used in :

• Authentication
• Authorization
• Information Exchange

Structure of a JWT :

A JWT consists of the 3 parts, separated by dots(.):

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWUsImlhdCI6MTUxNjIzOTAyMn0.KMUFsIDTnFmyG3nMiGM6H9FNFUROf3wh7SmqJp-QV30

1. Header

• Contains metadata about the token, typically the type(JWT) and the signing algorithm used (HS256, RS256,etc).

{
"alg" : "HS256",
"typ" : "JWT
}

2. Payload

• Contains the claims: statements about the user and additional data.

{
"sub":"123456",
"name":"John…