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Added error handling

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Added handling for `onerror` to log on the `error` stream of the console by default, maybe not the best possible behavior, but good for starters. If you have a better idea for this, please change it accordingly.
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Angelos Chalaris
2018-01-08 19:07:56 +02:00
committed by GitHub
parent c7566e295e
commit 120cf1cad0
1 changed files with 7 additions and 3 deletions
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10
snippets/httpGet.md
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@ -1,14 +1,18 @@
### httpGet ### httpGet
Makes a `GET` request to the passed `URL`. Makes a `GET` request to the passed URL.
Use `XMLHttpRequest` web api to retrieve data from the server. When the response is ready call the callback function. Use `XMLHttpRequest` web api to retrieve data from the given `url`.
Handle the `onload` event, by running the provided `callback` function.
Handle the `onerror` event, by running the provided `err` function.
Omit the third argument, `err` to log the request to the console's error stream by default.
```js ```js
const httpGet = (url, callback) => { const httpGet = (url, callback, err = console.error) => {
const request = new XMLHttpRequest(); const request = new XMLHttpRequest();
request.open("GET", url, true); request.open("GET", url, true);
request.onload = () => callback(request); request.onload = () => callback(request);
request.onerror = () => err(request);
request.send(); request.send();
} }
``` ```