Description: Webhooks are HTTP callbacks that allow web applications to receive real-time data. They function as a communication mechanism between different systems, where one server can send information to another server as soon as a specific event occurs. Unlike traditional APIs, which require a client to make requests to obtain data, webhooks allow data to be sent automatically, improving efficiency and reducing latency. Webhooks are particularly useful in environments where an immediate response to events is needed, such as in messaging applications, payment systems, and various automation platforms. Their implementation is relatively straightforward, as it only requires the receiver to configure an endpoint that can handle incoming requests. This makes them a powerful tool for automation and system integration, enabling developers to build more reactive and connected applications.
History: Webhooks began to gain popularity in the mid-2010s, as web applications started to require more efficient ways to communicate with each other. Although the concept of callbacks already existed in programming, the implementation of webhooks as a standard solution for service communication was driven by the growth of REST APIs and the need for more interactive and real-time applications. Platforms like GitHub and Stripe were pioneers in their use, allowing developers to receive instant notifications about relevant events.
Uses: Webhooks are used in a variety of applications, including real-time notifications, system integration, and process automation. For example, in software development, webhooks can notify a continuous integration system when a new commit is made to a repository. They are also common in e-commerce platforms to notify inventory systems about changes in order status.
Examples: An example of webhook usage is in GitHub, where they can be configured to send notifications to a server every time a push is made to a repository. Another example is Stripe, which uses webhooks to notify merchants about payment events, such as payment confirmation or refund creation.
