Webhook
A webhook is a method for web applications to send real-time notifications to other applications via HTTP requests, triggered by specific events like updates or actions. This lightweight alternative to traditional polling allows for efficient, event-driven communication, making it a cornerstone of modern API integrations in everything from social media to IoT devices. It's like a digital messenger that delivers updates instantly, without the need for constant checking.
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Webhooks can handle up to billions of events per day on platforms like Stripe, powering real-time payment notifications that process faster than a blink of an eye, helping businesses detect fraud almost instantly. This capability has been credited with preventing over $1 billion in fraudulent transactions annually across the fintech industry, showcasing how a simple tech mechanism can have massive real-world impact.
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