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node-red-nodes/analysis/mlsentiment/mlsentiment.js

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module.exports = function(RED) {
"use strict";
var multilangsentiment = require('multilang-sentiment');
function MultiLangSentimentNode(n) {
RED.nodes.createNode(this,n);
this.lang = n.lang;
this.property = n.property||"payload";
var node = this;
this.on("input", function(msg) {
var value = RED.util.getMessageProperty(msg,node.property);
if (value !== undefined) {
if (msg.hasOwnProperty("overrides")) {
msg.extras = msg.overrides;
delete msg.overrides;
}
multilangsentiment(value, node.lang || msg.lang || 'en', {words: msg.extras || null}, function (err, result) {
msg.sentiment = result;
node.send(msg);
});
}
else { node.send(msg); } // If no matching property - just pass it on.
});
}
RED.nodes.registerType("mlsentiment",MultiLangSentimentNode);
}