Create operation in SharePoint 2010 REST

createListItem.js

function createListItem(webUrl,listName, itemProperties, success, failure) {
 
    $.ajax({
        url: webUrl + "/_vti_bin/listdata.svc/" + listName,
        type: "POST",
        processData: false,
        contentType: "application/json;odata=verbose",
        data: JSON.stringify(itemProperties),
        headers: {
            "Accept": "application/json;odata=verbose"
        },
        success: function (data) {
            success(data.d);
        },
        error: function (data) {
            failure(data.responseJSON.error);
        }
    });
}


//Usage: create task
var taskProperties = {
    'TaskName': 'Order Approval',
    'AssignedToId': 12
};

createListItem('https://contoso.sharepoint.com/project/','Tasks',taskProperties,function(task){
    console.log('Task' + task.TaskName + ' has been created'); 
  },
  function(error){
    console.log(JSON.stringify(error));
  }
);