java web token code example

Example 1: javascript token generator

function generate_token(length){
    //edit the token allowed characters
    var a = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890".split("");
    var b = [];  
    for (var i=0; i<length; i++) {
        var j = (Math.random() * (a.length-1)).toFixed(0);
        b[i] = a[j];
    }
    return b.join("");
}
generate_token(32); //returns "qweQj4giRJSdMNzB8g1XIa6t3YtRIHPH"

Example 2: jwt

let jwt = require('jsonwebtoken');

const SUPER_SECRET_TOKEN = "My_Secret_Token";

server.post('/',(req,res)=>{
    res.setHeader('Content-Type', 'application/json');
    var token = jwt.sign({message: "Hello"}, SUPER_SECRET_TOKEN, { expiresIn: '5m' , noTimestamp: true });
    var result = jwt.verify(token, SUPER_SECRET_TOKEN);
    res.end(JSON.stringify({error: false, data: result}));
});

Example 3: jwt

JSON Web Token is an Internet standard for creating data with optional
signature and/or optional encryption whose payload holds JSON that asserts
some number of claims.

The tokens are signed either using a private secret or a public/private key.

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