I am facing an issue with my ajax call that involves passing a json string to a controller action. When the content portion of the json is too long, or when the json string in general exceeds a certain length, the server returns a 404 error. However, if I shorten the content, the request resolves and completes correctly.
Initially, I thought this problem was due to the 8k limit of Microsoft's JavaScriptSerializer. I tried updating the MaxJsonLength parameter, but unfortunately, that did not solve the issue. Can someone please shed some light on what might be causing this problem?
Below is the snippet of code for my ajax request (Please note that this code utilizes Knockout.js)
self.updatePost = function () {
var postToUpdate = ko.toJS(self.selectedPost);
postToUpdate.Content = $("#wmd-input").val();
console.log(postToUpdate);
$.getJSON('/blogs/posts/update', {post: ko.toJSON(postToUpdate)}, function(post) {
if (post) {
// remove the selected post and add the updated post
self.posts.remove(self.selectedPost());
var updatedPost = new Post(post);
self.posts.unshift(updatedPost);
self.selectedPost(updatedPost);
$("#ghost-list li:first").trigger('click');
// show alert
}
});
};
The following is the C# Controller Action:
public JsonResult Update(string post)
{
var seralizer = new JavaScriptSerializer();
seralizer.MaxJsonLength = int.MaxValue;
seralizer.RecursionLimit = 100;
var selectedPost = seralizer.Deserialize<Post>(post);
var student = students.GetStudentByEmail(User.Identity.Name);
var blog = db.Blogs.SingleOrDefault(b => b.StudentID == student.StudentID);
var postToUpdate = blog.BlogPosts.SingleOrDefault(p => p.ID == selectedPost.ID);
if (postToUpdate != null)
{
// update the post fields
postToUpdate.Title = selectedPost.Title;
postToUpdate.Slug = BlogHelper.Slugify(selectedPost.Title);
postToUpdate.Content = selectedPost.Content;
postToUpdate.Category = selectedPost.Category;
postToUpdate.Tags = selectedPost.Tags;
postToUpdate.LastUpdated = DateTime.Now;
if (selectedPost.Published)
{
postToUpdate.DatePublished = DateTime.Now;
}
// save changes
db.SaveChanges();
var jsonResult = Json(seralizer.Serialize(selectedPost), JsonRequestBehavior.AllowGet);
jsonResult.MaxJsonLength = int.MaxValue;
return jsonResult;
}
return Json(false, JsonRequestBehavior.AllowGet);
}