November 2019
Beginner
804 pages
20h 1m
English
Content preview from Learn TypeScript 3 by Building Web Applications
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Understanding the Fetch API
In order to call the RESTful API, we will use the Fetch API (https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API). It is a standard API of the web, supported by most modern browsers. Fetch defines an interface for fetching resources across the network that is similar to the one of XMLHttpRequest (also known as XHR): https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest.
Fetch has a couple of main concepts:
- Request (https://developer.mozilla.org/en-US/docs/Web/API/Request) represents a request for a resource.
- Response (https://developer.mozilla.org/en-US/docs/Web/API/Response) represents the response and its metadata.
We can configure the request as needed, for example, by adding credentials, ...
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