Compressed changeset upload

[tordans]

Does this openstreetmap/iD#6231 make sense for GoMap as well and does iOS have an easy way to support something like this?

Otherwise, please close again :-).

[bryceco]

My understanding for downloaded content is that iOS automatically requests gzipped data transparently. I assumed (but don’t know for certain) the same is true for uploading?

[mmd-osm]

Probably all frameworks I'm aware of won't automatically compress the payload of an HTTP POST request, so this won't happen transparently (unlike the download case). Reason being that the endpoint needs to explicitly support Content-Encoding: gzip, which kind of defeats the idea to compress the payload by default.

Also see: openstreetmap/operations#193 (comment) re. fallback to uncompressed upload in case of 415 Unsupported Media Type.