Batch request compression

Question

Dear Gateway Community,
I was wondering if it is possible to have the response of a Gateway batch request (READ only) using the gzip compression.
Indeed, I've noticed that after I had grouped my requests into a batch (just like best practices guides recommend), the payload went from 838Kb to 7.1 Mb because the response was not using any content-encoding.
I'm using the Data.js library used by SAP themselves and tried adding the Accept-encoding header parameter without succes.
var request = {
    headers : {
       "Accept-Encoding": "gzip, deflate"
    requestUri : '/sap/opu/odata/sap/ZGW_SERVICE/flightCollection',
    method : "GET"
  var batchRequests = [request];
  OData.request({
    headers : {
      "Accept" : "application/json",
      "X-CSRF-Token" : token,
                "Accept-Encoding": "gzip, deflate"
    requestUri : '/sap/opu/odata/sap/ZGW_SERVICE/$batch',
    method : "POST",
    data : {
      __batchRequests : batchRequests
  }, function () {
    console.log('success');
    debugger;
  }, function () {
    console.log('failure');
  }, OData.batchHandler);
Maybe that's got something to do with the fact that the response content type with batch requests is multipart/mixed.
Thanks in advance for any help on this matter,
Cheers,
Paul

Answer 1

Hello Ron,
Thanks for your answer.
Single GET request (non batch) are triggered with the "Accept-encoding" HTTP header parameter set to "gzip" which indicates the server that, if supported by the server, the response payload should be compressed.
The entity collection has 20 000 entries. The JSON format reduces the payload but not significantly enough to make it much faster.
Best regards,
Paul