Respect indexer API limits for Newznab

[Fossil01]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe

Prowlarr keeps hitting API endpoints even when the user has run out of requests for the day

Describe the solution you'd like

Sonarr/Sonarr#3132 (comment)

Describe alternatives you've considered

None. Prowlarr can use the indexer API limits shown in every API response at the top of the XML response.

Anything else?

None.

AB#2857

[bakerboy448]

Users can set Query and Grab limits in-app on a Per Indexer basis - which is a just fine solution

this would only be applicable to Newznab Indexers

[Fossil01]

It would, which covers 99% of indexers.

Users can't be trusted to set limits, or correct limits. Hence this request to respect the limits the indexer shows for that user.

[Qstick]

It would, which covers 99% of indexers.

We support 500+ indexers, Newznab being less than 10% of them. That was bakers point

Leaving this open as we could likely set the default values for Query and Grab Limit from a call during indexer add for the Newznab engine

[Fossil01]

We support 500+ indexers

You mean Trackers? Good Usenet indexer can be counted on two hands.

Leaving this open as we could likely set the default values for Query and Grab Limit from a call during indexer add for the Newznab engine.

That would be a good start :-)

[bakerboy448]

Pretty sure we respect when they indicate rate limit has been reached.

Is there anything else to do here? Grabbing the limits would be a maybe as they do not exist in newznab spec