jsonwebtoken、jwt-decode实现jwt获取和解析

npm install jsonwebtoken

const jwt = require('jsonwebtoken');
// 数据
const data = {
    name: "Tom",
    age: 23
}
// 秘钥
const key = "secret"
// 可选参数
const options = {
    expiresIn: '2h',   // 过期时间 eg:60="60ms", "2 days", "10h", "7d"
    algorithm: 'HS256' // 算法
}
let token = jwt.sign(data, key, options);
console.log(token);
/**
 eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.
 eyJuYW1lIjoiVG9tIiwiYWdlIjoyMywiaWF0IjoxNTg0MDg4OTYzLCJleHAiOjE1ODQwOTYxNjN9.
 clcR8LDC7Ncz5INgUJxIJmCJw1RzCwxXL-m_HK6FFIE
 */

const jwt = require('jsonwebtoken');
var decoded = jwt.decode(token);
console.log(decoded);
// { name: 'Tom', age: 23, iat: 1584088910, exp: 1584096110 }

npm i jwt-decode

// ES6
import jwt_decode from "jwt-decode";
// CommonJS
const jwt_decode = require('jwt-decode');
decoded = jwt_decode(token)
console.log(decoded);
// { name: 'Tom', age: 23, iat: 1584088910, exp: 1584096110 }

wget https://raw.githubusercontent.com/auth0/jwt-decode/master/build/jwt-decode.js

<script src="/static/js/jwt-decode.js"></script>