Access API REST on vb.net Winform Suite

Hi , i have create the same topic for probleme with authentication in VB.net to use axelor rest api .
Seems to be good but now , in 6 version a probleme appears :

with vb.net i call a rest axelor service , with basic authorization on headers .
Pb , only jsessionid cookies is return .
with postman same problem ( basic authentication ) .
To have the json result , i have to call a first call to login.jsp request and collect cookies ( SESSIONID and CRSF-TOKEN ) .
I set parameter auth.local.basic.auth.enabled = true in the propoerties file .

How can i do to have directly json result ?
Thanks
Regards
Ben

With two requests , it s work …