What are Web Hooks ? How Web Hook works ?
Tags: showdev, webdev, beginners, tutorial
Published: 2019-06-12 18:53:38

---
title: What are Web Hooks ? How Web Hook works ?
published: true
description: Web Hooks are the important concept in web nowadays. we will see how to implement web hooks
tags: showdev,webdev,beginners,tutorial
canonical_url : https://cloudnweb.dev/2019/06/what-are-web-hooks-how-web-hook-works/
---

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<p>In this article, we will see what are web hooks and how web hook works</p>
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<p>According to wikipedia,</p>
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<pre class="wp-block-code"><code>A webhook is a method of augmenting or altering the behavior of a web page, or web application, with custom callbacks. These callbacks may be maintained, modified, and managed by third-party users and developers who may not necessarily be affiliated with the originating website or application</code></pre>
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<p>confusing..right? </p>
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<p>Let's understand this concept with an analogy. Let's assume you are a bank manager and you are hiring an assistant to get you updated with the information and event happens in the bank</p>
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<p> Two people sign up for the interview; two&nbsp;<em>very</em>&nbsp;different people. </p>
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<ul><li>There's Mr.A (a.k.a API),  a very efficient assistant, who gives you answers – when you ask him. So if you call him up and ask him “Hey! What's the update today? Thanks!”, you’ll get the numbers that you’re looking for. </li><li> Then there’s Mr. B (aka Webhooks), who does things a bit differently. As soon as something happens, he automatically sends you a message saying, “Hey! This is what happened today! . Here’s more information about that! .  And oh, you’re welcome!”, without you asking for it. </li></ul>
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<p><strong>The question:</strong>&nbsp;Whom will you hire? </p>
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<p> The answer is quite obvious, isn’t it? . So, that's the purpose of Web Hooks </p>
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<h2 id="how-do-webhooks-work">How Web Hooks work?</h2>
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<ul class="wp-block-gallery columns-1 is-cropped"><li class="blocks-gallery-item"><figure><img src="https://cloudnweb.dev/wp-content/uploads/2019/06/webhooks.png" alt="" data-id="693" data-link="https://cloudnweb.dev/?attachment_id=693#main" class="wp-image-693"/></figure></li></ul>
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<p>Imagine a doorbell system - with a button near the door, and a bell in your living room. </p>
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<p>When a visitor pushes the button near the door, you can hear the doorbell ring, which tells you that someone is at the door, which is nothing but a signal sent from the button to the doorbell.</p>
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<p>Webhooks works in the same concept. The entrance door is a third-party app(web hook provider) which sends a signal when a specified event occurs and the bell in your living room is what is called as "listener". The listener is the URL which received the webhooks and performs a predefined action after that.</p>
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<p>Web Hooks are basically a  HTTP  callbacks which are user defined. It get triggered by specific events. Whenever a trigger event occurs in a third-party services, webhooks sees the event, collects the data, and sends it to the URL specified by you in the form of HTTP request.</p>
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<h3>Web Hooks Real life Examples :</h3>
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<p>Let's take a real time example where we can use Web Hooks. Let's say you want to get an update or notification whenever you commit to your GitHub repository.</p>
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<p>To Test the concept of WebHooks, we will use a site called <a href="https://webhook.site">https://webhook.site</a> . Once you visit the site, you can get a URL which you can add it to you GitHub repository as a WebHook URL</p>
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<p>Add the URL in the Web Hooks of GitHub page.</p>
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<ul class="wp-block-gallery columns-1 is-cropped"><li class="blocks-gallery-item"><figure><img src="https://cloudnweb.dev/wp-content/uploads/2019/06/github-1024x513.png" alt="" data-id="701" data-link="https://cloudnweb.dev/?attachment_id=701#main" class="wp-image-701"/></figure></li></ul>
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<p>Now, whenever you commit to the particular repository, you will get a response in the site.</p>
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<ul class="wp-block-gallery columns-1 is-cropped"><li class="blocks-gallery-item"><figure><img src="https://cloudnweb.dev/wp-content/uploads/2019/06/webhooksite-1024x512.png" alt="" data-id="702" data-link="https://cloudnweb.dev/?attachment_id=702#main" class="wp-image-702"/></figure></li></ul>
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<p>This is How Web Hooks Works.. Pretty simple..Right? .</p>
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<p>But so powerful concept which solves some important problem in the Software Engineering.</p>
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<p>Ok. Let's Catch Up  in an another article. Until then, <strong>Happy Hacking :-)</strong></p>
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<p>Recent Articles : </p>
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<ul><li><a href="https://cloudnweb.dev/2019/06/immutablejs-for-react-developers/">ImmutableJS for React Developers</a></li><li><a href="https://cloudnweb.dev/2019/05/nginx-for-front-end-developers/">Nginx For Front - End Developers</a></li></ul>
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<p></p>
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