web token code example
Example 1: javascript token generator
function generate_token(length){
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);
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: what is jsonwebtoken
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.
Example 4: jwt
HMACSHA256(
base64UrlEncode(header) + "." +
base64UrlEncode(payload),
) secret base64 encoded