（一）使用 JWT-Decode
jwt-decode是一個小的瀏覽器庫，用於幫助解碼Base64Url編碼的JWTs令牌。
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IMPORTANT: This library doesn't validate the token, any well formed JWT can be decoded. You should validate the token in your server-side logic by using something like express-jwt, koa-jwt, Owin Bearer JWT, etc.
只要，符合規範的JWT都能解碼
（二）使用DEMO
import jwt_decode from "jwt-decode";
var token = "eyJ0eXAiO.../// jwt token";
var decoded = jwt_decode(token);
console.log(decoded);
/* prints:
* { foo: "bar",
* exp: 1393286893,
* iat: 1393268893 }
*/
// decode header by passing in options (useful for when you need `kid` to verify a JWT):
var decodedHeader = jwt_decode(token, { header: true });
console.log(decodedHeader);
/* prints:
* { typ: "JWT",
* alg: "HS256" }
*/參考連結
1、jwt-decode
https://www.npmjs.com/package...
2、token線上解壓地址
https://www.box3.cn/tools/jwt...
寫在最後的話
學習路上，常常會懈怠
《有想學技術需要監督的同學嘛~》
https://mp.weixin.qq.com/s/Fy...