{
"client_id": "string",
"client_secret": "string"
}curl --location --request POST 'https://api.calven.com/v1/auth/token' \
--header 'Content-Type: application/json' \
--data-raw '{
"client_id": "string",
"client_secret": "string"
}'{
"access_token": "string",
"expires_in": 3600,
"token_type": "string"
}