npm package: @schibstedspain/bunyan-loggly
Description: A bunyan stream to transport logs to loggly
Author: Maurice Butler
Latest version: 1.3.2

# bunyan-loggly

A bunyan stream to send logs through to loggly.

## Configuration

bunyan-loggly uses node-loggly under the hood. As such, when configuring bunyan-loggly as a stream for bunyan, you need to pass in the standard and required node-loggly configuration object.

For example:

```javascript
{
	token: "your-really-long-input-token",
	subdomain: "your-subdomain"
}
```

## Usage

This is a basic usage example.

```javascript
var bunyan = require('bunyan');
var Bunyan2Loggly = require('bunyan-loggly');
var logglyConfig = {
    token: 'your-account-token',
    subdomain: 'your-sub-domain',
};

var logglyStream = new Bunyan2Loggly(logglyConfig);

// create the logger
var logger = bunyan.createLogger({
    name: 'logglylog',
    streams: [
        {
            type: 'raw',
            stream: logglyStream,
        },
    ],
});

logger.info({});
```

> Please note: you MUST define `type: 'raw'` as bunyan-loggly expects to receive objects so that certain values can be changed as required by loggly (i.e. time to timestamp).

## Buffering

bunyan-loggly supports basic buffering and when setup, will only send your logs through to loggly on every x logs. To setup buffering, just pass an integer as the second parameter when creating a new instance of Bunyan2Loggly:

```javascript
var bunyan = require('bunyan');
var Bunyan2Loggly = require('bunyan-loggly');
var logglyConfig = {
    token: 'your-account-token',
    subdomain: 'your-sub-domain',
};
var bufferLength = 5;

var logglyStream = new Bunyan2Loggly(logglyConfig, bufferLength);

// create the logger
var logger = bunyan.createLogger({
    name: 'logglylog',
    streams: [
        {
            type: 'raw',
            stream: logglyStream,
        },
    ],
});

logger.info({});    // won't send to loggly
logger.info({});    // won't send to loggly
logger.info({});    // won't send to loggly
logger.info({});    // won't send to loggly
logger.info({});    // will send to loggly
logger.info({});    // won't send to loggly
```

### Buffer Timeout

When buffering, a timeout can be provided to force flushing the buffer after a period of time. To setup a flush timeout, pass a timeout value (in ms) as the third parameter when creating a new instance of Bunyan2Loggly:

```javascript
var bunyan = require('bunyan');
var Bunyan2Loggly = require('bunyan-loggly');
var logglyConfig = {
    token: 'your-account-token',
    subdomain: 'your-sub-domain',
};
var bufferLength = 5;
var bufferTimeout = 500;

var logglyStream = new Bunyan2Loggly(logglyConfig, bufferLength, bufferTimeout);

// create the logger
var logger = bunyan.createLogger({
    name: 'logglylog',
    streams: [
        {
            type: 'raw',
            stream: logglyStream,
        },
    ],
});

logger.info({});    // will be sent to loggly in 500ms if buffer threshold is not reached
```

### Loggly request information

Each time log content is sent to loggly, the result of this request will be passed to the optional callback paramer `logglyCallback`

```javascript
var bunyan = require('bunyan');
var Bunyan2Loggly = require('bunyan-loggly');
var logglyConfig = {
    token: 'your-account-token',
    subdomain: 'your-sub-domain',
};

function logglyCallback(error, result, content) {
    // handle loggly callback
}

var logglyStream = new Bunyan2Loggly(logglyConfig, null, null, logglyCallback);
```