How to pass parameters from Angularjs to code behind

thanks for your response.

As we pass parameter jquery to webmethod like below

"data: "{'selfdata':'" + selfData + "'}""

i need same thing in angularjs

i found solution as below shown

  var req = {                       method: 'POST',                       url: "Default.aspx/getstring",                       data: "{'selfdata':'" + i + "'}",                       headers: {                           'user-Token': 'Token value should b here',                           'content-Type': 'Application/Json'                       }                   }                   $http(req)                   .success(function (data) {                       alert(status.d);                   })