I am extracting lead data using the 'Get Multiple Leads by List Id' REST API with GET method. However there are more that 650 fields that are required to be fetched. If I pass a comma separated list of all the fields as the URL param and make a GET request, the api returns a 414 Request-URI Too Long error.
Is there a way to fetch all the fields (more that 650) from marketo using the REST API? The api does not support POST method.
Error response in POSTMAN:
<html>
<head>
<title>414 Request-URI Too Large</title>
</head>
<body bgcolor="white">
<center>
<h1>414 Request-URI Too Large</h1>
</center>
<hr>
<center>nginx</center>
</body>
</html>