(C# UWP/WinRT) Creating an application/json HTTP POST Request

Demonstrates how to create an HTTP POST request having the Content-Type application/json, where the body of the HTTP request is the following JSON:

{
   "username" : "my_username",
   "password" : "my_password",
   "validation-factors" : {
      "validationFactors" : [
         {
            "name" : "remote_address",
            "value" : "127.0.0.1"
         }
      ]
   }
}

The generated HTTP request looks like this:

POST /something HTTP/1.1
Content-Type: application/json
Accept: application/json
Host: domain
Content-Length: 216

{
  "username": "my_username",
  "password": "my_password",
  "validation-factors": {
    "validationFactors": [
      {
        "name": "remote_address",
        "value": "127.0.0.1"
      }
    ]
  }
}

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// This example demonstrates building an application/json request.

Chilkat.HttpRequest req = new Chilkat.HttpRequest();

// The ContentType, HttpVerb, and Path properties should
// always be explicitly set.
req.HttpVerb = "POST";
req.Path = "/something";
req.ContentType = "application/json";

// We may wish to add an "Accept" header to the request.
// This tells the server we'll accept an application/json response.
req.AddHeader("Accept","application/json");

// We'll use Chilkat's JSON API to create the JSON body of the HTTP request.
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.AppendString("username","my_username");
json.AppendString("password","my_password");
Chilkat.JsonObject vFactors = json.AppendObject("validation-factors");
Chilkat.JsonArray vArray = vFactors.AppendArray("validationFactors");
vArray.AddObjectAt(0);
Chilkat.JsonObject factorObj = vArray.ObjectAt(0);
factorObj.AppendString("name","remote_address");
factorObj.AppendString("value","127.0.0.1");

// Use the JSON for the HTTP request body
// By default, the Emit method will output compact JSON.
// This is best for generating the smallest size request.
// To generate a more human-readable (pretty-printed) JSON request body,
// set the EmitCompact property to FALSE
json.EmitCompact = false;
req.LoadBodyFromString(json.Emit(),"utf-8");

// View the request that would be sent if SynchronousRequest was called:
string requestMime = req.GenerateRequestText();
Debug.WriteLine(requestMime);

// A few important comments about the HTTP request that is generated:
// 
// 1) The Content-Length header is automatically generated based on the actual length of the MIME message
//    that follows the intial (topmost) MIME header.
// 2) The HOST header will automatically get filled in with the actual domain when SynchronousRequest
//    is called