Javascript post jsonObject with Image Binary - ajax

Question

I have a HTML form for filling the personal profile, which includes String and Images. And I need to post all these data as JsonObject with one backend api call, and the backend requires the image file sent as binary data. Here is my Json Data as follow:
var profile = {
"userId" : email_Id,
"profile.name" : "TML David",
"profile.profilePicture" : profilePhotoData,
"profile.galleryImageOne" : profileGalleryImage1Data,
"profile.referenceQuote" : "Reference Quote"
};
and, profilePhotoData, profileGalleryImage1Data, profileGalleryImage2Data, profileGalleryImage3Data are all image Binary data(Base64).
And here is my post function:
function APICallCreateProfile(profile){
var requestUrl = BASE_URL + API_URL_CREAT_PROFILE;
$.ajax({
url: requestUrl,
type: 'POST',
data: profile,
dataType:DATA_TYPE,
contentType: CONTENT_TYPE_MEDIA,
cache:false,
processData:false,
timeabout:API_CALL_TIMEOUTS,
success: function (response) {
console.log("response " + JSON.stringify(response));
var success = response.success;
var objectData = response.data;
if(success){
alert('CreateProfile Success!\n' + JSON.stringify(objectData));
}else{
alert('CreateProfile Faild!\n'+ data.text);
}
},
error: function(data){
console.log( "error" +JSON.stringify(data));
},
failure:APIDefaultErrorHandler
})
.done(function() { console.log( "second success" ); })
.always(function() { console.log( "complete" ); });
return false;
}
But still got failed, I checked the server side, and it complains about the "no multipart boundary was found".
Can anyone help me with this, thanks:)
Updates:
var DATA_TYPE = "json";
var CONTENT_TYPE_MEDIA = "multipart/form-data";

Answer 1

I think I found the solution with vineet help. I am using XMLHttpRequest, and didn't set the requestHeader, but it works, very strange. But hope this following can help
function APICallCreateProfile(formData){
var requestUrl = BASE_URL + API_URL_CREAT_PROFILE;
var xhr = new XMLHttpRequest();
xhr.onreadystatechange=function()
{
if (xhr.readyState==4 && xhr.status==200){
console.log( "profile:" + xhr.responseText);
}else if (xhr.readyState==500){
console.log( "error:" + xhr.responseText);
}
}
xhr.open('POST', requestUrl, true);
// xhr.setRequestHeader("Content-Type","multipart/form-data; boundary=----WebKitFormBoundarynA5hzSDsRj7UJtNa");
xhr.send(formData);
return false;
}

Answer 2

Why to reinvent the wheel. Just use Jquery Form Plugin, here. It has example for multipart upload as well.
You just need to set input type as file. You will receive files as input stream at server (off course they will be multipart)