curl --location 'https://api.faxlink.ca/afx/v4//oauth/token' \
--data-urlencode 'grant_type=' \
--data-urlencode 'client_id=' \
--data-urlencode 'client_secret=' \
--data-urlencode 'scope='{
"access_token": "string",
"token_type": "string",
"expires_in": 0,
"scope": "string"
}