Getting error during authentication

General Discussion
#1

I am able to authorize and get a code for my client.
But when I try to authenticate getting
{
error: "invalid_grant"
error_description: “Redirect URI mismatch.”
}

Any idea why I getting this?

I using this url to make the request through a Chrome rest client
https://graph.api.smartthings.com/oauth/token?client_id=XXX&client_secret=XXX&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2FDeviceInfo%2FsmartThings%2Ftoken&code=nNRDbh&grant_type=authorization_code&scope=app

#2

Does the redirect_ui need to match the one you used for the first call (to get the code)? I’m not sure, but that seems like what the error is suggesting.