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How to show AJAX response data on a website

I'm writting a Spring Boot applicaiton in which I have a website with a submenu with several computer games. When I click on an position in this submenu, I want server to send an image (by image I mean a path to the image) of this game as a response, and after the response comes back to my JS on a website, I want to show it on the website. What I have already done is sending a request to server, and selecting an image based on request data. I don't know how to send a response and use it on my website.
Here is my code:
Java:
#RequestMapping("/change-game")
public String changeGame(HttpServletRequest request, #RequestBody GameData data){
File file;
String game = data.getName();
switch (game) {
//some code which actually works. I removed it to save space
}
request.setAttribute("gameIcon", file);
return "index";
}
JavaScript:
$("#selectGameSubmenu li").click(function(e){
e.preventDefault();
var option = $(this).data("option");
console.log(option + " " + JSON.stringify({"option": option}));
$.ajax({
type: "POST",
url: "http://localhost:8080/change-game",
data: JSON.stringify({name: option}),
contentType: "application/json; charset=utf-8",
dataType: "json"
});
});
HTML:
<img src="${gameIcon}" alt="${altGameIcon}"
style="width:100px;height:100px" class="gameLogoCenter"/>

I would add a new method that returns only the image path for your AJAX calls to consume.
For example
#ResponseBody
#PostMapping("/change-game-icon")
public String changeGameIcon(#RequestBody GameData data) {
File file;
String game = data.getName();
switch (game) {
//some code which actually works. I removed it to save space
}
return file.toString();
}
and in your JS
$.ajax({
url: '/change-game-icon',
method: 'post', // or "type" if your jQuery is really old
data: JSON.stringify({name: option}),
dataType: 'text',
contentType: 'application/json'
}).done(iconPath => {
$('img.gameLogoCenter').prop('src', iconPath)
})

MethodNotAllowedHttpException when trying to post data to controller via ajax in laravel

I'm trying to send dynamically generated data to controller via ajax in laravel. When user select an option from the dropdown then along with selected option and other data should be sent to controller.
I've tried to send data to controller when an option from dropdown is selected. But every time i try this error,
Symfony \ Component \ HttpKernel \ Exception \ MethodNotAllowedHttpException
and in the error
REQUEST_METHOD is GET
This is the where i call the ajax function
$(document).on('change', '.route-code-selector', function() {
var selectorID = $(this).attr('id');
addRoutePlanDetails(selectorID);
});
AJAX function
function addRoutePlanDetails(selectorID) {
var routePlanCode = document.getElementById("routeplanno").value;
var driver = $("#selectDriver").val().split('|');
var salesman = $("#selectSalesman").val().split('|');
var router_01 = $("#selectRouter01").val().split('|');
var router_02 = $("#selectRouter02").val().split('|');
var vehicle_no = document.getElementById("enterVehicleNo").value;
var route_code = document.getElementById(selectorID).value;
var date = document.getElementById("date").value;
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')
}
});
$.ajax({
url: 'addNewRoute',
method: 'POST',
dataType: 'json',
data: {
routePlanCode: routePlanCode,
driver: driver[1],
salesman: salesman[1],
router_01: router_01[1],
router_02: router_02[1],
vehicle_no: vehicle_no,
route_code: route_code,
date: date
},
success: function() {
console.log("success");
}
});
}
Route
Route::group(['prefix' => 'admin'], function () {
Voyager::routes();
Route::get ('route-plan', 'RoutePlanController#index');
Route::get ('excludePorterRes', 'RoutePlanController#excludePorterRes');
Route::get ('retreiveRouteData', 'RoutePlanController#retrieveRouteCodeData');
Route::get ('retreiveUserData', 'RoutePlanController#retreiveUserData');
Route::get ('retreiveNewRouteData', 'RoutePlanController#retreiveNewRouteData');
Route::post('addNewRoute', [
'uses' => 'RoutePlanController#insertNewRoute',
'as' => 'addNewRoute'
]);
});
controller
public function insertNewRoute(){
$routeplan = new Routeplan;
$user_email = auth()->user()->email;
$routeplan->RouteplanCode = Input::get('routePlanCode');
$routeplan->RouteCode = Input::get('route_code');
$routeplan->DriverID = Input::get('driver');
$routeplan->SalesmanID = Input::get('salesman');
$routeplan->Routercode1 = Input::get('router_01');
$routeplan->Routercode2 = Input::get('router_02');
$routeplan->VehicleNo = Input::get('vehicle_no');
$routeplan->Date = Input::get('date');
$routeplan->Createuser = $user_email;
$routeplan->Status = 'TEMP';
$routeplan->save();
}
when user select an option all the data should be stored in the db.

Try it once
url: '{{ route('addNewRoute') }}',

The issue is here:
url: 'addNewRoute',
here you are calling the route in a wrong manner, use it like:
url: '{{ url('admin/addNewRoute') }}',
you have to call the url() method so that it can create the right url format and don't forget the addNewRoute is grouped under admin, so you have to append that to while calling it.

If ajax method is runs in external javascript file, you should define a url variable in the blade (generally it layout blade.) that using as ajax request url on the ajax call method. (before .js file is loaded);
Example var url = '{{ route('addNewRoute') }}'
$.ajax({
url: url',
method: 'POST',
dataType: 'json',
data: {
routePlanCode: routePlanCode,
driver: driver[1],
salesman: salesman[1],
router_01: router_01[1],
router_02: router_02[1],
vehicle_no: vehicle_no,
route_code: route_code,
date: date
},
success: function() {
console.log("success");
}
});
If you using ajax in the blade, you can use directly route as ajax request url.
$.ajax({
url: "{{ route('addNewRoute') }}",
method: 'POST',
dataType: 'json',
data: {
routePlanCode: routePlanCode,
driver: driver[1],
salesman: salesman[1],
router_01: router_01[1],
router_02: router_02[1],
vehicle_no: vehicle_no,
route_code: route_code,
date: date
},
success: function() {
console.log("success");
}
});

You forgot / in your routes.
Route::group(['prefix' => 'admin'], function () {
Add / in admin/
Route::group(['prefix' => 'admin/'], function () {
Then you can try this in your ajax
url: '{{ url('admin/addNewRoute') }}',
or
url: 'admin/addNewRoute',
Try if this will work.

You have used prefix for your routes. So all your route in group will be prefix/uri.
So in ajax call you should url: '{{ url('admin/addNewRoute') }}', and change method to type
$.ajax({
url: '{{ url('admin/addNewRoute') }}',
type: 'POST',
dataType: 'json',
data: {
routePlanCode: routePlanCode,
driver: driver[1],
salesman: salesman[1],
router_01: router_01[1],
router_02: router_02[1],
vehicle_no: vehicle_no,
route_code: route_code,
date: date
},
success: function() {
console.log("success");
}
});
In ajax for specifying HTTP Verb use type not method.

if your script is in blade file then use route() to set url in ajax:
$.ajax({
url: '{{route('addNewRoute')}}',
method: 'POST',
dataType: 'json',
...
});

Try this:
Please use url: '{{ route('addNewRoute') }}' instead of url: 'addNewRoute'.

As many of you said.. I changed method to type.. And it still didn't work. But then i looked at laravel logs (storage/logs) and from the logs i found that some of my controller syntax are incorrect. And that's why it still gave me the 500 error. After I changed the syntax and do the corrections. It worked !! Anyways thanks for helping guys! If anyone is getting this error even if your ajax is correct take a look at laravel logs.. Hope this helps someone.

How to pass MVC view model into AJAX call with AntiForgeryToken

The code below is working for me, but I'm trying to find a way to read all values from the form instead of having to re-create the view model in JavaScript (vm is the name of the parameter of the object).
I tried to serialize the form and pass it in, but maybe my syntax is incorrect.
Any suggestions?
$.ajax({
type: "POST",
dataType: "json",
url: "/post-details-save",
data: addAntiForgeryToken({
vm: ({
Id: $("#PostImageDetails_Id").val(),
Title: $("#PostImageDetails_Title").val(),
Description: $("#PostImageDetails_Description").val(),
CopyrightOwner: $("#PostImageDetails_CopyrightOwner").val(),
CopyrightUrl: $("#PostImageDetails_CopyrightUrl").val(),
SourceName: $("#PostImageDetails_SourceName").val(),
SourceUrl: $("#PostImageDetails_SourceUrl").val(),
SourceLicenseType: $("#PostImageDetails_SourceLicenseType").val()
})
}),
success: postDetailsSaveSuccess,
error: postDetailsSaveError
});

Confirm Form Setup
#using (Html.BeginForm("ActionName", "ControllerName", FormMethod.Post, new { #id = "formID" }))
I have done similar stuff with submitting forms in partial views.
Basically, you need to confirm that your html form is set up correctly:
The AntiForgeryToken
#Html.AntiForgeryToken()
Data Fields
Could look something like the following with the name attribute being important.
<input type="hidden" name="ApproveUserID" id="ApproveUserID" value="#Model.ApproveUserID" />
AJAX The Form
If your form is set up correctly like explained above, you will be able to submit the data via AJAX with something similar to the JS below.
var form = $("#formID");
$.ajax({
url: form.attr('action'),
type: form.attr('method'),
data: form.serialize(), // data to be submitted
success: function (response) {
if (response == "Success") {
//DO SUCCESS STUFF
} else
{
//DO FAILURE STUFF
}
},
error: function () {
//DO ERROR STUFF
}
});
Pro Tip:
You can always expand the data you send by placing
var formData = form.serialize();
Into a variable and expanding it from there.
Good Luck.

Dealing with ajax request in Rails

Stackoverflow community
I have a select in my view. Onchange of which my ajax request is sent.
<%= f.select :id, options_from_collection_for_select(#rtypes, "id", "typeName"),
{include_blank: true },
{'data-rtypes': #rtypes.to_json } %>
.I am using Jquery ajax. My ajax works. It send an id of rtype to the show_sub_types method.
$(function () {
// specify id or class for your select tag
$('select').on('change', function () {
var rtype = $(this).val();
$.ajax({
url: "/RequestTypes/show_sub_types/"+rtype,
type: "GET",
})
});
});
In my show_sub_types method I want to grab all subTypes (stypes) from RequestSubType model.
def show_sub_types
#rtype = params[:id];
#stypes = RequestSubType.where("RequestType_id"==#rtype).all
respond_to do |format|
... some code here
end
end
I do not know how to deal with ajax request, i dont know how to send my stypes array to the page, and how to deal with that response. I have read some tutorials, but still can not understand that respond_to part. Probably i would understand on my own example.
In my view i have div where i want to put data send by ajax (inserted into html).

Specify the id of select and read for data attribute.
Get that array in data variable, and pass it to post ajax request
var data = $(this).data('rtypes');
or
$(this).find(':selected').data('rtypes')
$.ajax({
type : "POST",
url : "/RequestTypes/show_sub_types/"+rtype,
dataType: 'json',
data: JSON.stringify(data),
dataType: "json",
contentType: 'application/json'
});

ASP MVC basic AJAX Json request returns null

I have an MVC application with a controller named Angular (I use AngularJS as well), which has an action called GetQuestion. That action returns a JsonResult which looks like this (grabbed from Chrome):
{"game":{"Title":"Diablo III","ImgPaths":["d31.jpg","d32.jpg"]},"Answers":["Diablo III","World of Tanks","Need for Speed"]}
My JS function is like this:
var request = $.ajax({
url: "/Angular/GetQuestion",
dataType: "json",
type: "post",
success: (function (data) { alert(data); })
});
But instead of the Json I wrote above, alert window only says [object Object]
Update
Ok, that was fixed, thaks. However as you may suspect, my goal is not to present this data in alert box, but use it somehow. So here's my controller in Angular
function QuestionCtrl($scope) {
var request = $.ajax({
url: "/Angular/GetQuestion",
dataType: "json",
type: "post",
success: function (data) {
$scope.answers = JSON.stringify(data.Answers);
$scope.imgPath = JSON.stringify(data.game.ImgPaths[0]);
}
});
}
And then the view:
<div ng-controller="QuestionCtrl">
<img class="quizImage" src="~/Gallery/{{imgPath}}"/>
#using (Html.BeginForm("Answer", "Angular", FormMethod.Post))
{
<p ng-repeat="answer in answers"><input type="radio" name="game" value="{{answer}}"/> {{answer}}</p>
<p><input type="submit" value="Answer"/></p>
}
</div>
And I don't have neither image or the questions. If I hardcode them in controller then it's ok.

An alert will show that, i would suggest using console.log(data)
var request = $.ajax({
url: "/Angular/GetQuestion",
dataType: "json",
type: "post",
success: (function (data) { console.log(data); })
});
or as the comments states:
var request = $.ajax({
url: "/Angular/GetQuestion",
dataType: "json",
type: "post",
success: (function (data) { alert(JSON.stringify(data)); })
});

I resolved my second problem like this:
function QuestionCtrl($scope, $http) {
$http.post('/Angular/GetQuestion',null).success(function(data) {
$scope.answers = data.Answers;
$scope.imgPath = data.game.ImgPaths[0];
//console.log($scope.answers);
//console.log($scope.imgPath);
});
}
Note that it's AngularJS.

The reason it's happening is because JSON is an Object in JavaScript. When you type
alert(data);
It will attempt to cast the object to a string which in this case will only output that fact that it's an Object.
To view the contents of an object you can write a simple function to use with an alert or console.log.
function outputProperties(anObject) {
var props = '';
for (var prop in anObject) {
props += '\n' + prop + ' value: ' + anObject[prop];
}
return props;
}
And use it like this
alert(outputProperties(data));

For starters... when ever you are dynamically building the src url for an image (using the {{expression}} syntax from Angular) you need to not use the "src" attribute and use the "ng-src" angular directive. It allows angular time to process your url before the image is loaded.