Slack Service

slack.js

'use strict';

const request = require('request');

module.exports = {    
    inviteToTeam({ user, channels, token }) {
        const body = {
            email: user.email,
            first_name: user.firstname,
            last_name: user.lastname,
            channels,
            token,
            resend: true
        };
        
        return new Promise((resolve, reject) => {
            request.post({
                url: 'https://slack.com/api/users.admin.invite',
                form: body
            }, (error, response, rawBody) => {
                let body;

                if (error) return reject(error);
                if (response.statusCode !== 200) return reject(new Error(`Invalid response ${response.statusCode}.`));

                try {
                    body = JSON.parse(rawBody);
                } catch (e) {
                    return reject(e);
                }

                if (!body.ok) {
                    if (body.error === 'missing_scope' && body.needed === 'admin') {
                        reject(new Error('Missing admin scope: The token you provided is for an account that is not an admin. You must provide a token from an admin account in order to invite users through the Slack API.'));
                    } else if (body.error === 'already_invited') {
                        resolve('Пользователь уже приглашен.');
                    } else if (body.error === 'already_in_team') {
                        resolve('Пользователь уже в команде.');
                    } else {
                        reject(new Error(body.error || 'Не удалось отправить приглашение в Slack.'));
                    }
                } else {
                    resolve('Пользователь приглашен.');
                }
            });
        });
    }
};