problems with extracting data from pbcs with api rest

Content

 

I have problems with the json code to be able to extract data from the pbcs instance with api restThe code does not give favorable results.

According to the oracle documentation, these are the steps to follow.
https://docs.oracle.com/en/cloud/saas/enterprise-performance-management-common/prest/export_dataslices.html

https://planning-a5XXXXX.pbcs.us6.oraclecloud.com/HyperionPlanning/rest/v3/applications/C13/plantypes/EERR/exportdataslice

The documentation code is as follows
{
"exportPlanningData": true,
"gridDefinition": {
"suppressMissingBlocks": true,
"pov": {
"members": [
[ "BaseData" ], [ "FY15" ], [ "Plan"],[ "Working" ],["410" ],["P_160" ]
]
},
"columns": [
{
"members": [
[
"IDescendants(Q1)"
]
]
},
{
"members": [
[ "IDescendants(Q2)" ]
]
}
],
"rows": [
{
"members": [
[
"Project Number",
"Request Date",
"Project Type",
"Project Investment"