Need help understanding where URI Encoding happens

[6d6178]

Hi,
I'm currently trying to use carbonapi (and maybe even metrictank) as backend for this module. I already figured out how to replace the expand url with a find. Now I'm struggling with the render URI. The URI is encoded at some point to this pattern: render?from=1567412279\u0026until=1567415879\u0026width=1112.22\u0026height=220\u0026
carbonapi wants an & though, so this doesn't work. I already searched the code for the place where the encoding (decoding?) happens, but I can't find it. Can anyone help me out?
The URI is built in library/Graphite/Web/Widget/GraphImage.php and then does a request, but there is no mention of en/decoding.
Of course I plan to make a Pull Request once it works.

[yoshi314]

i am also interested in this, since switching to carbinapi i have different urls than what module makes.

[nilmerg]

I'm not aware of any encoding the module does here. & is the default parameter separator.

[nilmerg]

Duplicate of #300