Biztalk basic queries

Hi all,

I have started using biztalk server 2010 in Visual Studio 2010  a few days back and i am facing so many confusions while doing this.

1)From front end how will we call biztalk function?.In .net we will call “https://12.2.1./Controllername/function name

2)Also the base url(for eg:12.2.1.)will be different for each api?

3)Currently i am doing this in my local system and manually configuring ports.But when i put this into server whether i need to configure it again?

4)I need my output in json format.Is there function available to get my output in json format?

Can anyone please help me to sort out this?[:(]