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GitHub repositorycorsac-dart/jwt

jwt

Lightweight implementation of JSON Web Tokens (JWT)

jwt project cover
Stars
43
Forks
28
Last push (UTC)
Aug 6, 2025
Project status
Active

Original README

English project snapshot. Visit GitHub for the latest content.

Lightweight implementation of JSON Web Tokens (JWT).

Usage

import 'package:corsac_jwt/corsac_jwt.dart';

void main() {
  var builder = new JWTBuilder();
  var token = builder
    ..issuer = 'https://api.foobar.com'
    ..expiresAt = new DateTime.now().add(new Duration(minutes: 3))
    ..setClaim('data', {'userId': 836})
    ..getToken(); // returns token without signature

  var signer = new JWTHmacSha256Signer('sharedSecret');
  var signedToken = builder.getSignedToken(signer);
  print(signedToken); // prints encoded JWT
  var stringToken = signedToken.toString();

  var decodedToken = new JWT.parse(stringToken);
  // Verify signature:
  print(decodedToken.verify(signer)); // true

  // Validate claims:
  var validator = new JWTValidator() // uses DateTime.now() by default
    ..issuer = 'https://api.foobar.com'; // set claims you wish to validate
  Set<String> errors = validator.validate(decodedToken);
  print(errors); // (empty list)
}

Supported signers:

  • HS256 (JWTHmacSha256Signer).
  • RS256 (JWTRsaSha256Signer)
  • ES256 (JWTEcdsaSha256Signer)

Refer to documentation for more details.

License

BSD-2

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GitHub author

corsac-dart ↗

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Packages published by this repository

Dependencies used

Dependency list 7 items

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