flutter pub add jwt_decoder基于插件公开信息、社区数据与项目使用情况整理的选型参考。
jwt_decoder 包是一个轻量级的 Dart 库，旨在高效地解码 JSON Web 令牌 (JWT)。它允许开发者从 JWT 中提取有效载荷数据，并检查令牌是否已过期。该库设计简洁，支持所有主要平台，包括 Android、iOS、Web、macOS、Windows 和 Linux。该包非常适合需要安全处理令牌的应用程序，例如依赖 JWT 进行用户会话管理的身份验证系统或 API 集成。
以下为关联源码仓库的 README 原文快照，最新内容请访问源码仓库。
This is a small library for decoding a json web token for dart / flutter. Since the header and payload is base64 encoded you can easily know the stored data with no password, you can also know if the token is expired or not.
If you like this library there's a version for Vue here. And for React here
main () {
String yourToken = "Your JWT";
Map<String, dynamic> decodedToken = JwtDecoder.decode(yourToken);
/*
If the token has a valid format, you will get a Map<String, dynamic>
Your decoded token can look like:
{
"sub": "1234567890",
"name": "Gustavo",
"iat": 1516239022,
"exp": 1516239022,
"randomKey": "something else"
}
*/
}
main () {
String yourToken = "Your JWT";
bool hasExpired = JwtDecoder.isExpired(yourToken);
// You will get a true / false response
// true: if the token is already expired
// false: if the token is not expired
}
main () {
String yourToken = "Your JWT";
DateTime expirationDate = JwtDecoder.getExpirationDate(token);
// 2025-01-13 13:04:18.000
print(expirationDate);
}
// Token payload must include an 'iat' field
main () {
String yourToken = "Your JWT";
Duration tokenTime = JwtDecoder.getTokenTime(token);
// 15
print(tokenTime.inDays);
}
MIT