JS uses the POST request method in json format

This article mainly shares with you the JS method of sending POST requests in json format. It is mainly shared with you in the form of code. I hope it can help you.

<script type="text/javascript">

Use JS to send a POST request in JSON format

var us = new US();
var xhr = new XMLHttpRequest();
xhr.open("POST", "/searchguard/api/v1/auth/login", true);
xhr.setRequestHeader("Content-type", "application/json");
xhr.setRequestHeader("kbn-version", "5.3.0");
xhr.onreadystatechange = function() {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
window.location.href = us.nextUrl;
}
}
};
xhr.send(JSON.stringify({
"username" : us.u,
"password" : us.p
}));
</script>

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