node-red/nodes/analysis/72-sentiment.js

33 lines
1006 B
JavaScript

/**
* Copyright 2013 IBM Corp.
*
* 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.
**/
var RED = require("../../red/red");
var sentiment = require('sentiment');
function SentimentNode(n) {
RED.nodes.createNode(this,n);
this.on("input", function(msg) {
var node = this;
sentiment(msg.payload, function (err, result) {
msg.sentiment = result;
node.send(msg);
});
});
}
RED.nodes.registerType("sentiment",SentimentNode);