The purpose of io.Copy(ioutil.Discard, r) in render.DecodeJSON

[haarts]

In the function DecodeJSON this is called:

io.Copy(ioutil.Discard, r)

what is the purpose of that?

[VojtechVitek]

This is the reason: go-chi/render#42

json.NewDecoder(r).Decode(v) reads the first JSON object only and leaves the rest of the bytes unread in the reader.

[haarts]

Fascinating. Thank you.