How do I get the filters that are required when querying a report, using the ERP Next R.E.S.T. A.P.I.s?
Filter syntax is very similar to get_list filter syntax. It’s just key-value pair for fieldname and values.
POST /api/method/frappe/desk/query_report
{
"report_name": "General Ledger",
"filters": {
"company": "Wind power",
"from_date": "2022-11-15",
"to_date":"2022-12-15",
"group_by": "Group by Voucher (Consolidated)",
"include_dimensions":1
},
"ignore_prepared_report": True, // if you want to explictly regenerate report
}
You can intercept a request when you generate report and see exactly what frappe is doing.
I want an API that will return the filters, because there are situations, I don’t know which filters to pass, so I want an API that will return a list of all possible filters for a report name.
I doubt this is easily possible. Columns can be dynamically added/removed in reports. 
Only source of truth would be code in this case. report.js files would contain column names and column types in most cases. You can’t query them though.
