middleware.js

const log = require('./log');
const {
	createResponse,
	fetchUserData,
} = require('./utils');

const authenticate = (req, res) => {
	log.debug({ name: 'REQUEST_IN', body: req.body });
	const token = req.body && req.body.spec && req.body.spec.token;

	if (typeof token !== 'string') {
		log.info({ name: 'INVALID_PAYLOAD', token, payload: req.body });
		return res
			.status(401)
			.send(createResponse(false));
	}

	return fetchUserData(token)
		.then((userData) => {
			log.info({ name: 'AUTHENTICATED', userData }, 'User successfully authenticated');
			const response = createResponse(true, userData);
			log.debug({ name: 'RESPONSE', response });
			return res
				.status(200)
				.send(response);
		})
		.catch((err) => {
			if (err.statusCode === 401) {
				log.info(err);
			} else {
				log.error(err);
			}

			return res
				.status(401)
				.send(createResponse(false));
		});
};

module.exports = {
	authenticate,
};