logstash-client

General purpose logstash with multiple transport support

Features

• tcp uses juliangruber's reconnect-net for handling reconnection
• logging library independent (there are some logstash clients for winston, bunyan etc)

TODOS

• [x] TCP Transport
• [x] UDP Transport
• [x] Memory Transport (for testing)
• [ ] AMQP Transport
• [ ] Codec support

Example

var Logstash = require('logstash-client');

var logstash = new Logstash({
  type: 'udp', // udp, tcp, memory
  host: 'logstash.example.org',
  port: 13333
});
logstash.send(message [, callback]);

API

Constructor

Takes the following parameters:

• type: type of connection, currently supported tcp, udp, memory
• host: remote hostname
• port: remote port
• format (optional): formatter function (by default the message gets JSON.stringified)
• maxQueueSize (optional): Restricts the amount of messages queued when there is no connection. If not specified the queue is not limited in size.

Example:

new Client({
  type: 'tcp',
  host: 'logstash.example.org',
  port: 8099,
  format: function(message) {
    message.formattedAt = new Date();
    message.password = '!FILTERED!';
    return JSON.stringify(message, null, 2);
  },
  maxQueueSize: 1000
});

Client#send

Takes the following parameters:

• message: an object what you are trying to send to your logstash instance
• callback (optional): a function called when the message has been sent

Example:

var client = new Client({
  type: 'tcp',
  host: 'example.org',
  port: 1337
});
client.send({
  '@timestamp': new Date(),
  'message': 'Important',
  'level': 'error'
});

License

MIT