JWT generator code example

Example 1: jwt generate token

const genToken = (id) => {
  return JWT.sign({ id }, process.env.JWT_SECRET)
}

Example 2: 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 3: jwt encode

jwt.encode( { 'client_id':'value', 'expires_in':'datetime'}, SECRET_KEY, algorithm='HS256' )

OBS:
Convert datetime to string because in the backend is a json encode system 
and it will generate a TypeError
ex: TypeError: Object of type datetime is not JSON serializable

Example 4: decode csrf token online

{
  "alg": "CfDJ8OW5OI0CPGJBgSNlGwO0x4YF7qbYKVv7KOO-N0eFtDUzXOrL7F9Xd9W1otVi4ueJOkAmAhuoHFWNkqRaFD7zvAMHMSKncl6Vo5QXKmpvy6vqxOKxSURdIey8aZPRi3Nnhp2p9la-Al5xrVKz0lignRdcCHf3O7pF9zv_sNx_c_T7pUe3WsxaJEPX3t_9FO2Wjw"
}

Example 5: 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.