Hilfe:Erweiterung:EventStreamConfig
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This EventStreamConfig extension provides library functions and an API endpoint for exporting event stream configuration from the $wgEventStreams
MediaWiki configuration variable.
This allows for centralized configuration of streams for both MediaWiki and external uses.
- The EventLogging extension uses this with ResourceLoader to load configs for streams used on certain pages to dynamically configure client stream settings, like sample rate.
- Mobile apps use the API endpoint to dynamically configure client stream settings like sample rate.
- EventGate event intake service(s) use this to ensure that only events of a specific schema title are allowed into a stream.
- EventBus and other server side event producers uses this to figure out which event intake service a given stream should be produced to.
Verwendung
MediaWiki-Konfiguration
$wgEventStreams
is a list of individual stream configs.
Each stream config must minimally specify its schema_title
and its stream
name settings.
In $wgEventStreams
, stream
may either be a static stream name string, or a regex that matches stream names for which the stream config should be used.
Example:
$wgEventStreams = [
'test.event' => [
'stream' => 'test.event',
'schema_title' => 'test/event',
'sample_rate' => 0.15,
],
'nonya' => [
'stream' => 'nonya',
'schema_title' => 'mediawiki/nonya',
'sample_rate' => 0.5,
],
'mediawiki.virtual_page_view' => [
'stream' => 'mediawiki.virtual_page_view',
'schema_title' => 'mediawiki/page/virtual-view',
'sample_rate' => 0.1,
],
'/^mediawiki.edit(\..+)?/' => [
'stream' => '/^mediawiki.edit(\..+)?/',
'schema_title' => 'mediawiki/edit',
'sample_rate' => 0.8,
],
];
(Note: sample_rate
is just an example setting)
Getting configs for a list of streams
StreamConfigs#get
takes a list of stream names to return configs for.
$wgEventStreams
is keyed by stream name or stream regex pattern, and it is searched for stream names that match.
The return value is a map from requested stream name to the matched stream config.
By default any settings in StreamConfig::INTERNAL_SETTINGS
are removed from the returned stream configs; as they are often not useful for client side configuration.
The $includeAllSettings
parameter disables this behavior.
Example:
$streamConfigs = MediaWikiServices::getInstance()->getService('EventStreamConfig.StreamConfigs');
$streamConfigs->get( ['test.event', 'mediawiki.edit.cohort1'] );
returns
[
'test.event' => [
'sample_rate' => 0.15,
],
'mediawiki.edit.cohort1' => [
'sample_rate' => 0.8,
]
]
streamconfigs MW API endpoint
curl http://wiki.domain.org/w/api.php?action=streamconfigs&format=json&streams=test.event|mediawiki.edit.cohort1
# returns
{
"test.event" => {
"sample_rate" => 0.15
},
"mediawiki.edit.cohort1": {
"sample_rate" => 0.8
}
}