I work as part of a team and I have to work with JSON array for input and output.
That's fine, but you're still doing it wrong. Like
@DonManfred indicated, if you need to send a json to the server, you should almost certainly do a POST instead. (There are other alternatives, but they are so rare that we can ignore them in this thread.)
this url (
http://192.168.1.13:3000/cstmrlgn/{"user":"ali","pw":"sss"} ) is working in the normal web browser and in the Postman
I strongly doubt that. I mean, I believe you when you say it works. However, I don't believe that's what's happening behind the curtain. My best guess is that Postman et al do some automatic conversion. ("Oh, the user entered data like this, la-di-da, I'll just convert it for them so it works, to-de-loo".) You should try to inspect your network traffic to see what
really gets sent when you do a request like that.