(Go) 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"
      }
    ]
  }
}

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

    req := chilkat.NewHttpRequest()

    // The ContentType, HttpVerb, and Path properties should
    // always be explicitly set.
    req.SetHttpVerb("POST")
    req.SetPath("/something")
    req.SetContentType("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.
    json := chilkat.NewJsonObject()
    json.AppendString("username","my_username")
    json.AppendString("password","my_password")
    vFactors := json.AppendObject("validation-factors")
    vArray := vFactors.AppendArray("validationFactors")
    vArray.AddObjectAt(0)
    factorObj := vArray.ObjectAt(0)
    factorObj.AppendString("name","remote_address")
    factorObj.AppendString("value","127.0.0.1")
    factorObj.DisposeJsonObject()
    vArray.DisposeJsonArray()
    vFactors.DisposeJsonObject()

    // 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.SetEmitCompact(false)
    req.LoadBodyFromString(*json.Emit(),"utf-8")

    // View the request that would be sent if SynchronousRequest was called:
    requestMime := req.GenerateRequestText()
    fmt.Println(*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

    req.DisposeHttpRequest()
    json.DisposeJsonObject()