view mod_http_stats_stream/README.markdown @ 5295:98d5acb93439

mod_authz_delegate: make resistant against startup order issues There is no guarantee that the target_host gets activated and initialized before the host this module is loaded on. As add_default_permission is called during load time by many modules, we need to be prepared to queue stuff.
author Jonas Schäfer <jonas@wielicki.name>
date Fri, 31 Mar 2023 16:56:42 +0200
parents bac3dae031ee
children
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---
depends:
- 'mod\_http'
provides:
- http
---

# Introduction

This module provides a streaming interface to [Prosodys internal statistics][doc:statistics] via
[Server-sent events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events).

## Example

```js
var evtSource = new EventSource("/stats_stream");

/*
 * An event with all current statistics in the form of a JSON object.
 * Normally sent only once, when first connected to the stream.
 */
evtSource.addEventListener("stats-full", function(e) {
	var initial_stats = JSON.parse(e.data);
	console.log(initial_stats);
}, false);

/*
 * An event containing only statistics that have changed since the last
 * 'stats-full' or 'stats-updated' event.
 */
evtSource.addEventListener("stats-updated", function(e) {
	var updated_stats = JSON.parse(e.data);
	console.log(updated_stats);
}, false);
```

# Compatibility

* Prosody \>= 0.11.0
* Trunk < [5f15ab7c6ae5](https://hg.prosody.im/trunk/rev/5f15ab7c6ae5)