http web request from batch file

What are you allowed to install? Could you use wget for Windows for instance? Or write a .NET executable which does everything you need it to using WebClient or HttpWebRequest?

You can try using wget for Windows.

Take a look at curl. It's a cross-platform command-line tool for making web requests (similar to wget if you've used that before). You should be able to call that from your batch file.

Without external binaries - only the built-in windows capabilities -> https://github.com/npocmaka/batch.scripts/blob/master/hybrids/jscript/winhttpjs.bat

This is jscript/.bat hybrid and can be called like simple bat. Example usage (I've used http://requestb.in/ for test purposes):

  call winhttpjs.bat "http://requestb.in/xxxxxx" -method POST -header hdrs.txt -reportfile reportfile2.txt
   
  call winhttpjs.bat "http://requestb.in/xxxxxx" -method GET -header hdrs.txt -reportfile reportfile3.txt -saveTo c:\somezip.zip 

  call winhttpjs.bat "http://requestb.in/xxxxxx" -method POST -header hdrs.txt -reportfile reportfile2.txt -saveTo responsefile2 -ua "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"  -body-file some.json

Header files format should look like (if passed with -header command argument):

Header-1: Value-1
ExampleHeader: Value2

Does not support multi-part requests (though I'm planning to add such a feature (some day))