Webhook Vs API
APIs send you the data when you request it. For Webhooks, you do not need to make a request. You receive the data when it is available.Example
If you need to know whether an Order has been placed or not, using APIs, you need to keep polling every few seconds until the api returns data containing a new order. However, if you are using Webhooks, you can configure a webhook eventOrder Created
to receive notifications when a new order has been placed.