How to enable persistent caching on WMTS capabilities URL

Hi,

We are using the WmtsParser to recover available WMTS Tile Sources. However it seems impossible to enable persistent caching on a selected tilesource, since you can’t provide a persitent cache object with the parser.

var tileSources = WmtsParser.Parse(httpClient.GetStreamAsync(addr).Result);

Do you have any advice on getting this done?

[pauldendulk]

Simply made PersistentCache settable. Had to remove the internal TileProvider. Released as 2.2.0.

[pauldendulk]

Just a thought: Maybe an alternative could be to add an optional callback function to the parser that could provide a IPersistantCache object given a certain URL, Scheme, Layername or other Identifier for each TileSource?

I just tried to envision how that would work. One thing that you see a lot in .net core is build options like these. I thought they could maybe be used here. That would be possible but this specific case makes it a step harder because you have to find a solution to deal with multiple tilesources. This will be hard to understand for users. So I now think we should just make the PersistenCache settable. I have to think about removing the TileProvider from the HttpTileSource.