Strange behaviour trying to get an oauth grant

[Angalexik]

The api docs say that in order to get an oauth grant I need to perform a request like this:

curl -XPOST "https://backpack.tf/oauth/access_token" \
-H "Content-Type: application/x-www-form-urlencoded" \
-H "Accept: 1.0" \
--data-urlencode "grant_type=client_credentials" \
--data-urlencode "client_id=myawesomeapp" \
--data-urlencode "client_secret=abc123" \
--data-urlencode "scope=read write"

And this works, however as soon as I try to encode it in the url in any other way for example, like this:

curl -XPOST "https://backpack.tf/oauth/access_token?grant_type=client_credentials&client_id=myawesomeapp&client_secret=abc123&scope=read%20write" \
-H "Content-Type: application/x-www-form-urlencoded" \
-H "Accept: 1.0"

The response says `The authorization grant type is not supported by the authorization server.`

 

I thought those 2 perform the same exact request, can someone please tell me where I messed up?

[Zeus_Junior]

OAuth isn't used anymore, docs are old

https://backpack.tf/developer/pages/oauth_removal