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30-seconds-of-code/snippets/httpPost.md
2018-01-10 19:53:36 +01:00

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Markdown

### httpPost
Makes a `POST` request to the passed URL.
Use `XMLHttpRequest` web api to make a `post` request to the given `url`.
Set the value of an `HTTP` request header with `setRequestHeader` method.
Handle the `onload` event, by console logging the `responseText`.
Handle the `onerror` event, by running the provided `err` function.
```js
const httpPost = (url, data, err = console.error) => {
const request = new XMLHttpRequest();
request.open("POST", url, true);
request.setRequestHeader('Content-type','application/json; charset=utf-8');
request.onload = () => console.log(request.responseText);
request.onerror = () => err(request);
request.send(data);
};
```
```js
const user = {
name: "Foo",
password: "fooBar"
};
const data = JSON.stringify(user);
httpPost('https://website.com/posts', data, request => {
console.log(request.responseText);
}); // ''
```