cabdriver/lib/auth/slack_auth.js

Helps you to fill in your hours with taxi

'use strict';

var prompt = require('prompt-promise');
var Slack = require('slack-api').promisify();

var credentials = require('../../slack_credentials.json');

var Auth = require('./auth');

// If modifying these scopes, delete your previously saved credentials
// at ~/.cabdriver/slack-token.json
var SCOPES = [
    'search:read',
    'channels:read',
    'users:read',
];

class SlackAuth extends Auth {
    constructor() {
        super();
        this.clientId = credentials.client_id;
        this.clientSecret = credentials.client_secret;
    }

    getTokenFilename() {
        return 'slack-token.json';
    }

    mapToken(obj) {
        return obj.access_token;
    }

    getNewToken() {
        var me = this;
        return Slack.oauth.getUrl({
            client_id: me.clientId,
            scope: SCOPES.join(',')
        })
            .then(function(data) {
                console.log('Authorize this app by visiting this url: ', data);
                return prompt('Enter the code from that page here: ');
            })
            .then(function(code) {
                return Slack.oauth.access({
                    'client_id': me.clientId,
                    'client_secret': me.clientSecret,
                    'code': code
                });
            })
            .then(function(data) {
                me.storeToken(data);
                return me.mapToken(data);
            })
            .catch(function(err) {
                throw new Error('Error while trying to retrieve access token: ' +err);
            });
    }
}

module.exports = SlackAuth;