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protomaps / PMTiles

Cloud-optimized + compressed single-file tile archives for vector and raster maps

Home Page:https://protomaps.com/docs/pmtiles/

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Add option to do non-range requests?

lordi opened this issue · comments

commented

Use case: My development server does not support range requests, it would be nice if I could set an option to download the complete file, cache it, and then return the relevant parts of it on demand.

I'm working with the MapLibre and OpenLayers adapters.

commented

What development server are you using? My preference would be to make it support range requests (part of the HTTP 1.1 specification) so it behaves the same way as production. Adding such an option would defeat the primary purpose of the pmtiles design, and wouldn't work for files more than a few megabytes.

If you really wanted to make it work this way, you could grab the whole file into an in-memory ArrayBuffer using plain fetch and then write a custom JS Source to grab pieces of that ArrayBuffer.

commented

Thanks yea I see that this feature request is out of scope for this project.

We use the Django development server, that does not supports Range Requests for static files. I just hacked together a version that supports Range Requests with static files, so I'm fine for now.