c# - Passing values from controller to WebAPI -

i have need track emails , pages on our website. want use webapi this, new , examples found hard follow. here problem:

i have emailtrackercontoller code below:

public class emailtrackingcontroller : controller {     [outputcache(nostore = true , duration = 0)]     [httppost]     public actionresult getpixel(string email, guid emailid) {          var client = new httpclient();         var endpoint = "http://localhost:2640/api/emailtracker/saveemail"; --path api         var response = await client.postasync(endpoint, null); --this not work          const string cleargif1x1 = "r0lgodlhaqabaiaaap///waaach5baeaaaaalaaaaaabaaeaaaicraeaow==";         return new filecontentresult(convert.frombase64string(cleargif1x1) , "image/gif");     } } 

i have created webapi has httppost method called saveemail:

[httppost] public httpresponsemessage saveemail([frombody]string value) { --how email , guid need here?      var = new dl.emailtracking();     a.insert("<email>" , guid.newguid());      return request.createresponse(httpstatuscode.accepted , ""); } 

couple of questions on this:

• how pass values controller webapi?
• any easy follow examples great, of if have link useful well.

the second parameter of postasync content of call. serialize object json contains values want , add content.

var obj = new { email = "mail@mail.com" }; httpstringcontent msg = new httpstringcontent(jsonconvert.serializeobject(obj)); var response = await client.postasync(endpoint, msg); 

modify receiving method receive desired properties. i'd use class methods parameter can use [frombody] properties listed well.

public httpresponsemessage saveemail(emailsave model)