JSON Web Token : Complete guide with example
Abhinash Singh Rajput
7 months ago
JSON Web Token:
- A JSON web token (JWT) is a URL-safe method of transferring claims between two parties.
- The JWT encodes the claims in JavaScript object notation and optionally provides space for a signature or full encryption.
- A JSON web token is JSON (JavaScript object notation) with some extra structure.
- JWTs include a header and payload that use the JSON format. Optionally, the tokens can be encrypted or signed with a message authentication code (MAC). Signed tokens are commonly referred to as JSON web signatures (JWS) and encrypted tokens as JSON web encryption (JWE).
How JSON Web Token works:
The JWT is formed by concatenating the header JSON and the payload JSON with a “.” and optionally appending the signature. The whole string is then base64 URL encoded.
Example of JSON Web Tokens:
JWT Example:
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9
Decoded Header
{
"typ": "JWT",
"alg": "HS256"
}
Decoded Payload
{
"iss": "LM",
"iat": 1619470682,
"exp": 1619471886,
"aud": "www.xeloxo.com",
"sub": "Ned"
}
Signature
mqWsk4fUZ5WAPYoY9bJHI7gD8Zwd
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Abhinash Singh Rajput
Full Stack Developer at Singapore
7 months ago
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