curl --request POST \
  --url 'https://api.flashcat.cloud/datasource/upsert?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "integration_id": 123,
  "name": "<string>",
  "plugin_id": 302,
  "settings": {
    "channel_ids": [
      123
    ],
    "endpoint": "<string>",
    "event_types": [
      "<string>"
    ],
    "headers": {}
  },
  "team_id": 123,
  "description": "<string>"
}
'

{
  "request_id": "<string>",
  "data": {
    "integration_id": 123,
    "integration_key": "<string>"
  },
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}