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A easy dart package to decode JSON Web Tokens, and to check and give its expiry dates

jwt_decode #

A easy dart package to decode JSON Web Tokens, and to check and give its expiry dates.

Using #

Decode a token

The easiest way to use this library is via the top-level function parseJwt().

import 'package:jwt_decode/jwt_decode.dart';

String token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJKV1QgRGVjb2RlIiwiaWF0IjoxNjA4NTgxNzczLCJleHAiOjE2NDAxMTc3NzMsImF1ZCI6Ind3dy5qd3RkZWNvZGUuY29tIiwic3ViIjoiQSBzYW1wbGUgSldUIiwibmFtZSI6IlZhcnVuIFMgQXRocmV5YSIsImVtYWlsIjoidmFydW4uc2F0aHJleWFAZ21haWwuY29tIiwicm9sZSI6IkRldmVsb3BlciJ9.vXE9ogUeMMsOTz2XQYHxE2hihVKyyxrhi_qfhJXamPQ';

Map<String, dynamic> payload = Jwt.parseJwt(token);

print(payload);

// After decoding, payload would look like this:
//  payload = {
//    'iss': 'JWT Decode',
//    'iat': 1608581773,
//    'exp': 1640117773,
//    'aud': 'www.jwtdecode.com',
//    'sub': 'A sample JWT',
//    'name': 'Varun S Athreya',
//    'email': 'varun.sathreya@gmail.com',
//    'role': 'Developer'
//  }

Getting expiry date

To get the expiry date of the given token pass the token in the function getExpiryDate().

import 'package:jwt_decode/jwt_decode.dart';

String token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJKV1QgRGVjb2RlIiwiaWF0IjoxNjA4NTgxNzczLCJleHAiOjE2NDAxMTc3NzMsImF1ZCI6Ind3dy5qd3RkZWNvZGUuY29tIiwic3ViIjoiQSBzYW1wbGUgSldUIiwibmFtZSI6IlZhcnVuIFMgQXRocmV5YSIsImVtYWlsIjoidmFydW4uc2F0aHJleWFAZ21haWwuY29tIiwicm9sZSI6IkRldmVsb3BlciJ9.vXE9ogUeMMsOTz2XQYHxE2hihVKyyxrhi_qfhJXamPQ';

DateTime expiryDate = Jwt.getExpiryDate(token);

print(expiryDate);

// The expiry date would look like:
// expiryDate = 2021-12-22 01:46:13.000

Checking weather the token has expired or not

To check weather the token has expired or not pass the token in the function isExpired().

Getting expiry date

To get the expiry date of the given token pass the token in the function getExpiryDate().

import 'package:jwt_decode/jwt_decode.dart';

String token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJKV1QgRGVjb2RlIiwiaWF0IjoxNjA4NTgxNzczLCJleHAiOjE2NDAxMTc3NzMsImF1ZCI6Ind3dy5qd3RkZWNvZGUuY29tIiwic3ViIjoiQSBzYW1wbGUgSldUIiwibmFtZSI6IlZhcnVuIFMgQXRocmV5YSIsImVtYWlsIjoidmFydW4uc2F0aHJleWFAZ21haWwuY29tIiwicm9sZSI6IkRldmVsb3BlciJ9.vXE9ogUeMMsOTz2XQYHxE2hihVKyyxrhi_qfhJXamPQ';

bool isExpired = Jwt.isExpired(token);

print(isExpired);

// The output would be:
// isExpired = false
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A easy dart package to decode JSON Web Tokens, and to check and give its expiry dates

Repository (GitHub)
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License

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Dependencies

flutter

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