login: (i) => {
        /*
        Returns a promise:
         RESOLVED if successfully logged in
         REJECTED AND REASON if the login was unsuccesful
         */

        return new Promise((resolve, reject) => {
            var request = require('request');
            const user = obj.users[i]

            var request = request.defaults({
                jar: true,
                headers: obj.config.headers
            });

            const formData = {
                username: obj.users[i].username,
                password: obj.users[i].password,
                grant_type: 'password'
            };
            const options = {
                url: 'https://www.example.com/token',
                form: formData,
                referer: 'https://www.example.com/',
            };

            const eo_login = (options) => {
                return new Promise((resolve, reject) => {
                    request.post(options, (err, res, body) => {
                        var body = JSON.parse(body);

                        if (body.error) {
                            return reject(body.error_description)
                        } else {
                            user.jar = request;
                            return resolve()
                        }

                    });
                });
            };

            eo_login(options)
                    .then(res => {
                        if (res == null) return; // If rejected dont continue

                        user.loggedIn = true;
                        console.log(user.username, 'successfully logged in.');
                        return resolve()
                    });
        });
    },