Hello,

I need to pass a Blob to rest api service to save a blob via post call.

When I'm calling the postdatastart with the URL I'm getting error -1 (that's mean general error).

I installed Postman app to see if there is a problem and monitor the problem, but with postman it went successfully.

There is something to define before calling the postdatastart ?

I also need to initialize the body with some values, how it could be done ? there is only Setrequestheader function.

thank you,

Eyal