A webhook is a way for one application to send a message or data to another application in real-time over the internet. It is a type of server-side push technology that allows one application to send data to another application as soon as it is available, rather than waiting for the other application to request the data.
Webhooks are often used to enable real-time communication between applications or to trigger a specific action in one application based on an event that occurs in another application. For example, a Webhook could be used to trigger an action in an application when a new customer signs up on a website, or when a new order is placed in an online store.
To use a webhook, the sending application must be configured to send a message to a specific URL when a specific event occurs. The receiving application must have a Webhook endpoint that is set up to receive and process the message.
Webhooks are typically used in APIs (Application Programming Interfaces) to allow applications to communicate with each other and exchange data. They are an efficient way to transfer data between applications and are often used in conjunction with other API technologies, such as REST and SOAP.
Overall, webhooks are an important technology that allows applications to communicate and exchange data in real-time, and they are widely used in a variety of industries and applications.