naga-jws/index.js

get tbs jws?

const jwt = require('jsonwebtoken');
const axios = require('axios');

const getTBSAccessToken = async (
	clientId,
	clientSecret,
	userToken,
	authUrl
) => {
	const returnedJws = generateTBSJws(clientId, clientSecret, userToken);

	const tbsAuthToken = await fetchAccessToken(returnedJws, authUrl);

	return tbsAuthToken;
};

//This function generates the authentication JWS token
const generateTBSJws = (clientId, clientSecret, userToken) => {
	//setup the payload with Issuer, Subject, audience and Issued at.
	const payload = {
		iss: clientId,
		sub: clientId,
		aud: userToken,
		iat: Math.floor(new Date().getTime() / 1000),
	};

	// Create a new JWS token with the payload

	jwsToken = jwt.sign(payload, clientSecret);
	return jwsToken;
};

//Fetch the access token by setting the Authentication field in the header.
const fetchAccessToken = async (jwsToken, authUrl) => {
	let accessToken = {
		token: '',
		statusCode: '',
		message: '',
	};
	//axios needs to be setup with the custom header
	const options = {
		headers: {
			Authentication: jwsToken,
		},
	};

	//call the auth url using axios
	try {
		const res = await axios.get(authUrl, options);
		//console.log('res: ', res);
		accessToken.token = res.data.AccessToken;
		accessToken.statusCode = res.status;
		accessToken.message = res.statusText;
	} catch (error) {
		if (error.response) {
			// The request was made and the server responded with a status code
			// that falls out of the range of 2xx
			// console.log(error.response.data);
			// console.log(error.response.status);
			// console.log(error.response.headers);
			accessToken.token = null;
			accessToken.statusCode = error.response.status;
			accessToken.message = error.response.data.Errors;
		} else if (error.request) {
			// The request was made but no response was received
			// `error.request` is an instance of XMLHttpRequest in the browser and an instance of
			// http.ClientRequest in node.js
			console.log('Request Error', error.request);
		} else {
			// Something happened in setting up the request that triggered an Error
			console.log('Error', error.message);
		}
		// console.log(error.config);
		console.log('Complete Error: ', error.toJSON());
	}
	return accessToken;
};

exports.generateTBSJws = generateTBSJws;
exports.getTBSAccessToken = getTBSAccessToken;