slao

SLAO Node.js agent

SLAO is a monitoring and alerting service for Node.js microservices

https://slao.io

Installation

Add SLAO to your Node.js application with

yarn add slao

OR

npm install slao --save

Basic Usage

Example

var app = require('express')()
var slao = require('slao').default
 
//It's important to add slao as the first handler to your express app
app.use(slao.init({
    appName: 'your-app-name', 
    apiKey: '8e38f18a68f1a1a01d2c1dff442ee150e0888bc3dca97048b4000b0d05a28fd0' })
)
 
app.get('/', function (req, res) {
  res.slao.setTags({ result: 'OK' }) // add a custom tag to your request
 
  res.send('Hello World!')
})
 
app.listen(3000)

After adding this two lines of code, you'll see every request that your application processes with detailed information about it.

Slao.init() paramenters

appName - name of your application, can be overriden by SLAO_APP_NAME env variable

hostname - name of your host, defaults to os.hostname(), can be overriden by SLAO_HOSTNAME env variable

apiKey - your api key, can be overriden by SLAO_API_KEY env variable

Using with Docker

By default when you call os.hostname() from the inside of a Docker container it returns the container id, not the hostname where you're running the container. To avoid this set SLAO_HOSTNAME=<your host name> env variable for your Docker container using SLAO.

Custom Tags

You can add custom tags to your requests, you'll be able to filter your data by this tags in SLAO

Example:

api.get((req, res) => {
    ...
    res.slao.setTags({ result: 'OK' })   
    ...
})