Transifex Project Webhooks API
Project Webhooks lets you specify actions which will trigger some notification event. When that event occurs, Transfex application will make a HTTP request to the URL configured for the webhook (callback_url). The request is done as a HTTP POST request. For example a callback url will be triggered whenever a target language of a resource has fully been translated, enabling the client to implement a custom workflow to pull translations as soon as they are ready, without having to constantly check Transifex for updates.