Windows: curl with json data on the command line
Windows's cmd doesn't support strings with single quotes. Use " and escape the inner ones with \".
"I searched for solutions and found alternatives such as put json data in files, but I cannot use it for some reasons"
This should work, with hello.json in temp. The @ is requried.
c:\temp>curl -v -X PUT \ --data "@hello.json" \ -H "Content-Type:application/json" \ http://localhost:8080/api/myresource