An HTTP server-side events plugin for logagent. Can be used for e.g. writing a custom web log live tail UI.
Installation
On the machine where you're running logagent:
npm install -g logagent-output-http-sse
Configuration
In logagent's config.yml output section, add:
output:
http-sse:
module: logagent-output-http-sse
port: 80
Adjust port as needed. If omitted, it will listen on 3000.
Usage
Assuming logagent is running on log.example.com, the following will stream all log events to the browser console:
<html>
<body>
<script>
const eventSource = new EventSource('http://log.example.com/events')
eventSource.onmessage = (event) => {
console.log(event.data)
}
</script>
</body>
</html>
To request events from certain sources only, use a "source" query parameter with an extglob pattern value.
For example, to only request events from sources beginning with "myapp_":
const eventSource = new EventSource('http://log.example.com/events?source=myapp_*')
Security
There is no authorization or encryption, please use a reverse proxy to provide those if running on an untrusted network.