36 lines
1.0 KiB
Markdown
36 lines
1.0 KiB
Markdown
---
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title: httpGet
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tags: browser,intermediate
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---
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Makes a `GET` request to the passed URL.
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- Use the `XMLHttpRequest` web API to make a `GET` request to the given `url`.
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- Handle the `onload` event, by calling the given `callback` the `responseText`.
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- Handle the `onerror` event, by running the provided `err` function.
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- Omit the third argument, `err`, to log errors to the console's `error` stream by default.
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```js
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const httpGet = (url, callback, err = console.error) => {
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const request = new XMLHttpRequest();
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request.open('GET', url, true);
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request.onload = () => callback(request.responseText);
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request.onerror = () => err(request);
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request.send();
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};
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```
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```js
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httpGet(
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'https://jsonplaceholder.typicode.com/posts/1',
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console.log
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); /*
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Logs: {
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"userId": 1,
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"id": 1,
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"title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
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"body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"
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}
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*/
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```
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