flutter pub add jwt_io根據套件公開資料產生的選型評估，僅供參考。
jwt_io 是一個用於根據 RFC 7519 標準對 JSON Web Tokens (JWT) 進行編碼、解碼和驗證的 Flutter/Dart 套件。它透過提供產生簽名令牌和驗證其完整性之工具，實現各方之間安全傳輸聲明。該套件支援 Android、iOS、Web、macOS、Windows 和 Linux 等多個平台，非常適合需要驗證或授權的跨平台應用程式。它可透過 pub.dev 與 Flutter 專案無縫整合。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
JWT_IO allows you to decode, verify and generate JWT.
main () {
String yourToken = "Your JWT";
Map<String, dynamic> decodedToken = JwtToken.payload(yourToken);
/*
If the token has a valid format, you will get a Map<String, dynamic>
Your decoded token can look like:
{
"sub": "1234567890",
"name": "John Doe",
"iat": 1516239022,
}
*/
}
main () {
String yourToken = "Your JWT";
bool hasExpired = JwtToken.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 = JwtToken.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 = JwtToken.getTokenTime(token);
// 15
print(tokenTime.inDays);
}
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