node-red-contrib-grok/nodes/grok.js

Grok node for Node-red

var grok = require('node-grok').loadDefaultSync();
var dotprop = require("dot-prop")
module.exports = function(RED) {

//----------------------------------------------------------------------------------------------------
function GrokNode(config) {
    RED.nodes.createNode(this, config);
    var node = this;
    this.field = config.field || "payload";
    this.regex = config.regex || "";
    this.pattern = grok.createPattern(this.regex);
    // cleanup on close
    this.on('close',function() {
    });

    this.on('input', function (message) {  
      let f = dotprop.get(message, this.field) 
      message.grok = this.pattern.parseSync(f); 
      node.send(message);
    }); // END On Input
}; //End of Node
RED.nodes.registerType('grok', GrokNode);
}