Refresh Token is Missing

[caktoy]

I tried follow every step and then try to access {my_url}/oauth/token with body application/json like this:

{
    "grant_type": "client_credentials",
    "client_id": "1",
    "client_secret": "Dq5E8lfuPel1Ym33qqt9Yy5wIRe4NGzOVNsYhZQP"
}

But the response only contains token_type, expires_in, and access_token without refresh_token attribute. Is there something step I need to do. Please help.

[PatsyMR]

Here is the way I am loggin in, maybe you can try this way