Arch Linux

libalpm has a function alpm_find_satisfier.
The web interface lists all the possible satisfiers for a dependency string.
A dependency string may be like "linux-api-headers>=4.10" which includes a version requirement
or "libcurl.so" which packages listed on their "provides" array, or even both.

I'd like to request the said functionality for the RPC interface, via adding a new search_by: "providers"

For example, wingpanel-git [1] depends on libgala.so, which is provided by gala-git or gala.
In this case, there is no way in the RPC that finds any of the two package.
There is no package named libgala.so [2] and libgala.so certainly does not exist in name-desc [3].

The desired RPC interface might look like:
/rpc/?v=5&type=search&search_by=providers&arg=libgala.so
Or maybe a bulk query like: (not sure whether this will kill the server though)
/rpc/?v=5&type=providers&arg[]=dep1&arg[]=dep2

Also as a side note, the functionality of the web interface seems to be provided by:
pkgfuncs.inc.php:212:pkg_providers()

Thank you.

[1] https://aur.archlinux.org/packages/wingpanel-git/
[2] https://aur.archlinux.org/rpc/?v=5&type=info&arg[]=libgala.so
[3] https://aur.archlinux.org/rpc/?v=5&type=search&search_by=name-desc&arg=libgala.so