C# server side

[assafshp]

Hi, I tried using this js library with a c# server that I wrote identically as the py backend and amazon documentation. Unfortunately , this doesn't work and I always get mismatch signature. I tried several options but with no luck. Do you have any inputs for that?

[robj]

I also get a mismatch signature error using a ruby backend that verifiably creates signatures as per the python backend.