--- title: JavaScript API Mocking Techniques | daily.dev description: API Mocking Mocking is a client-side mocking framework that mocks the API in the browser by using the Pretender library. It has many built-in tools:... canonical: https://daily.dev/posts/javascript-api-mocking-techniques-l4nbumrah twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JavaScript API Mocking Techniques | daily.dev og:description: API Mocking Mocking is a client-side mocking framework that mocks the API in the browser by using the Pretender library. It has many built-in tools:... og:url: https://daily.dev/posts/javascript-api-mocking-techniques-l4nbumrah og:image: https://api.daily.dev/og/posts/L4nbuMrah.png og:image:alt: JavaScript API Mocking Techniques og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # JavaScript API Mocking Techniques **[Syncfusion](https://daily.dev/sources/syncfusion)** · [@sureshmohan](https://daily.dev/sureshmohan) · 8 min read · 85 upvotes · 1 comments ## Summary API Mocking Mocking is a client-side mocking framework that mocks the API in the browser by using the Pretender library. It has many built-in tools: serializer, route handlers, database, models, fixtures, and factories. It enables emulating dynamic behavior between the front end and back end, rather than mocking the same response over and over again by hitting an endpoint. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@devvsakib** · 1 upvotes > great --- Tags: [#react](https://daily.dev/tags/react), [#javascript](https://daily.dev/tags/javascript), [#testing](https://daily.dev/tags/testing), [#rest-api](https://daily.dev/tags/rest-api), [#axios](https://daily.dev/tags/axios) [View this post on daily.dev](https://daily.dev/posts/javascript-api-mocking-techniques-l4nbumrah) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"JavaScript API Mocking Techniques","url":"https://daily.dev/posts/javascript-api-mocking-techniques-l4nbumrah","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/javascript-api-mocking-techniques-l4nbumrah"},"datePublished":"2022-09-15T11:05:19.554Z","dateModified":"2022-09-15T11:05:19.478Z","description":"API Mocking Mocking is a client-side mocking framework that mocks the API in the browser by using the Pretender library. 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