curl --request POST \
  --url https://api.camelai.com/api/v1/sources/add/bigquery/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "bigquery",
  "service_account_key": {
    "type": "service_account",
    "project_id": "my-project",
    "private_key": "-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----\n",
    "client_email": "service@my-project.iam.gserviceaccount.com"
  }
}
'

{
  "id": 123
}