import {Web3Token} from "w3t";
import * as web3 from "web3";

//Mock the user in the crypto wallet. Use your web3provider install it.
const accounts = web3.eth.accounts.create();

// All users have the same msgMetadata
const msgMetadata = {
    domain: "example.com",
    statement: "Please Sign the Message.",
    uri: "https://example.com",
  // version: "1",
  // chainId: 1
}

const w3tokenClient = new Web3Token(msgMetadata);

// Each user have different msgPayload
const msgPayload = {
    address: accounts.address, // mock the user
    // nonce, issuedAt, expirationTime
}
const message = w3tokenClient.prepareMessage(msgPayload, {expiresIn:'12h'});

//Invoke the wallet and sign the `message`
const signature = web3.eth.accounts.sign(message, accounts.privateKey);

const token = w3tokenClient.create(signature.signature);

//Set the token in request headers and request the server
//... headers:{'Authorization': `Bear ${token}`}

import {Web3Token} from "w3t";

//Get the token from the request headers
const token = req.headers.authorization.split(' ')[1]

//The server has the same msgMetadata
const msgMetadata = {
    domain: "example.com",
    statement: "Please Sign the Message.",
    uri: "https://example.com",
  // version: "1",
  // chainId: 1
}

const w3tokenServer = new Web3Token(msgMetadata);

try{
    const decoded_token = await w3tokenServer.verify(token, {maxAge:'3d'});
    const addr = decoded_token.payload.address;
    //...
}catch(e){
    //verify failed
    //...
}

import jwt from 'jsonwebtoken';
const token = req.headers.authorization.split(' ')[1];
const decoded_token =  jwt.decode(token);

if (decoded_token.header.typ === 'w3t'){
    // Web3 Token
} else if (decoded_token.header.typ ==='jwt'){
    // JSON Web Token
} else{
    // Invalid token
}