Feature question: strip prefix

[aapeliv]

Context: we serve a bunch of stuff from Cloudfront. I'd like to deploy static map tiles under a sub-path like /maps/tiles/ like https://cdn.example.com/maps/tiles/20240918/1/0/1.mvt. However, at the moment the serverless function doesn't allow doing things (I think I could rename my PMTiles file to maps/tiles/20240918.pmtiles in the bucket?).

I am probably going to hack in a feature to strip the prefix /maps/tiles into a fork based on an env var, but wondering if there is interest in accepting a PR for it and what that would entail?

[aapeliv]

I've sorted out what I need to do by adding an env var that lets you just set the PMTiles path to whatever: 1fa5ebe. Obviously only works if you have that path serving a single file.

Also, unrelated, but thank you for this awesome project! It was also super easy to build this function and hack on it, I'm impressed by that too!

[bdon]

However, at the moment the serverless function doesn't allow doing things (I think I could rename my PMTiles file to maps/tiles/20240918.pmtiles in the bucket?)

Yes, this is the intended solution. Prefix your object keys with the prefix you want.

Obviously only works if you have that path serving a single file.

That could work in your fork but isn't a general-purpose solution. There is an existing PMTILES_PATH which does kind of the opposite of what you want: if you already have a bucket structured with the prefixes /mytiles/abc.pmtiles, setting PMTILES_PATH to /mytiles/{name}.pmtiles will let the requests to /abc fetch from that archive.

[bdon]

@aapeliv is re-organizing the objects in your bucket to match your desired URL layout a sufficient solution?

I thought a bit about how to configure a prefix-based PMTILES_PATH but we would need to extend it to be a regular expression or something similar to how nginx rewrite rules work. That seems too complex for limited gain, so I'm going to close this issue as non-actionable. Let me know if you have other ideas or your bucket situation isn't compatible with the above.

[aapeliv]

Hey @bdon, yes what I’ve good currently is more than satisfactory for my use case!

Yes I agree that it’s not clear how to do it in a sensible way in general, especially since I seem to be one of very few looking for this kind of feature!