We use MS Reporting Services in [login to view URL] application to generate reports by executing endpoint <server>/ReportServer/Pages/[login to view URL]<report_name>&rs:Command=Render&rpOfferId=XXX&rs:Format=PDF. It works very well by using ReportExecutionService class in C# to make authroization by user and psw.
Neverhless, we have a problem to do it in Flutter. We've tried different auth. method by postman or build-in component in Flutter, but it doesn't work.
We need peace of code where it will work. The root cause is auth method, currentl always it's forbidden (for Flutter app,)