Hi, I am try to upload a file to a custom REST API endpoint, but I am not having much luck (I'm using Splunk 7.0.4). I have the following custom REST API handler which currently just echos back the request to the client browser (it is configured correctly and is being invoked): import splunk class FileUpload(splunk.rest.BaseRestHandler): def handle_POST(self): try: self.response.write(str(self.request['payload'])) except Exception as e: self.response.write("ERROR: " + str(e)) And I have some JavaScript which uses jQuery to perform an AJAX POST containing a selected file (I am testing using recent versions of Chrome and Firefox): function uploadButtonCallback(e) { e.preventDefault(); var fileInput = document.getElementById('appfile_id'); var file= fileInput.files[0]; var callback= function(response) { console.log(response) } sendRequest('POST', URL, file, callback); } function sendRequest(type, url, file, callback) { var formData = new FormData(); formData.append('file', file) $.ajax({ 'type': type, 'url' : url, 'timeout':30000, 'data': formData, 'processData': false, 'contentType': false }) .success((response) => console.log(response)) .error((response) => console.log(response)) } But I am not seeing the file content echoed back - this is what I get printed in the JS console: 18:41:44.517 Response: -----------------------------214284223518627931251367576440 Content-Disposition: form-data; name="file"; filename=file.pkg" Content-Type: application/vnd.apple.installer+xml I have been able to get this to work by using the JavaScript FileReader.readAsDataURL() function and sending the file as a base64 encoded String, however this does not work for large files (Chrome and Firefox both crash/fail). I believe the client-side JavaScript is correct - it seems like something is stripping the binary data from the request before the Python handler is invoked. Can anyone help? Thanks PS if there is another way to have a file uploaded to a known location on the Splunk host (without it being indexed) - I would love to hear about it. ... View more