slackpost.js

/**
 * Copyright 2015 Adrian Lansdown
 * Not created by, affiliated with, or supported by Slack Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

module.exports = function(RED) {
    "use strict";
    var request = require('request');

    function slackOut(n) {
        RED.nodes.createNode(this,n);

        this.channelURL = n.channelURL;
        this.username = n.username || "";
        this.emojiIcon = n.emojiIcon || "";
        var node = this;

        this.on('input', function (msg) {
            var channelURL = node.channelURL || msg.channelURL;
            var username = node.username || msg.username;
            var emojiIcon = node.emojiIcon || msg.emojiIcon;
            var channel = node.channel || msg.channel;

            var data = {
                "text": msg.payload,
                "username": username,
                "icon_emoji": emojiIcon
            };
            if (channel) { data.channel = channel; }
            if (msg.attachments) { data.attachments = msg.attachments; }

            try {
                request({
                    method: 'POST',
                    uri: channelURL,
                    body: JSON.stringify(data)
                });
            }
            catch (err) {
                node.log(err,msg);
            }
        });
    }
    RED.nodes.registerType("slack", slackOut);
};