Do a single payout first, than make the file better. edit %email% with the recipient email, generate your own authorization code how the rest apu says, batch_id must always a new number before running url, so run the file in the browser it will send single payout and leave the window, when finished.
Personally, I use batch_id with a cookie to increment it each time which can be dangerous if you loop the program to keep sending payouts by accident.
maybe someone else can give you the 500 recipient version.
payout.html
<!DOCTYPE html>
<html>
<body>
<h2>Using the XMLHttpRequest Object</h2>
<div id="demo">
<button type="button">Change Content</button>
</div>
<script>
var batch_id='2000000000000'
var email='%email%'
var data = '{'+'\n'+ '"sender_batch_header": {' +'\n'+' "sender_batch_id": "'+batch_id+'",'+'\n'+'"email_subject": "This email is related to simulation"'+'\n'+'},'+'\n'+'"items": ['+'\n'+'{'+'\n'+'"recipient_type": "EMAIL",'+'\n'+'"receiver": "'+email+'",'+'\n'+'"note": "POSPYO001",'+'\n'+'"sender_item_id": "15240864065560",'+'\n'+'"amount": {'+'\n'+'"currency": "USD",'+'\n'+'"value": "0.01"'+'\n'+'}'+'\n'+'}'+'\n'+']'+'\n'+'}'
//window.location="complete"
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4) {
document.getElementById("demo").innerHTML =this.responseText;
window.location="complete"
}
};
xhttp.open("POST", "https://api.paypal.com/v1/payments/payouts", true);//http://127.0.0.1:845 //https://api.sandbox.paypal.com/v1/payments/payouts
xhttp.setRequestHeader("Content-Type", "application/json");
xhttp.setRequestHeader("cache-control", "no-cache");
xhttp.setRequestHeader("Authorization", "Basic lVjNKSDVsZXRJMmxKNmdqTnZ=");
//xhttp.setRequestHeader("Postman-Token", "bf41afcb-0e17-4f7c-bde9-c3ae8855a88f");
xhttp.send(data);
setTimeout(never_loaded,2000);
function never_loaded(){
window.location="complete"
}
</script>
</body>
</html>
