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Unable to download file in laravel ajax on button click

When I am trying to use the download button to download file in laravel ajax, it is not working properly and I am not able to download file.
Below is my code:
<button type="button" request_id="'.$data->id.'" class="btn btn-success download_request_btn" > Download </button>';
Controller:
public function downloadReport(Request $request)
{
$request_id = $request->request_id;
$downloadReport = Upload::where('id', $request_id)->first();
$upload_report = $downloadReport->upload_report;
$headers = array(
'Content-Type: application/pdf',
'Content-Type: application/docx',
);
$url= url('storage/documents/request/'. $upload_report);
return response()->download($url);
}
Ajax:
$(document).on('click', '.download_request_btn', function(){
var request_id = $(this).attr('request_id');
console.log(request_id);
var formData = new FormData();
formData.append('request_id',request_id);
jQuery.ajax({
type: "post",
url: site_url+"/DownloadAjax",
data: formData,
contentType:false,
processData:false,
success: function (res) {
}
});
});

Just to pseudo-code it up with trusting your data is coming back as desired I think you need to trigger the download in your success callback with a variation of the following (may need to adjust to your need):
$(document).on('click', '.download_request_btn', function(){
var request_id = $(this).attr('request_id');
console.log(request_id);
var formData = new FormData();
formData.append('request_id',request_id);
jQuery.ajax({
type: "post",
url: site_url+"/DownloadAjax",
data: formData,
contentType:false,
processData:false,
success: function (res) {
const data = res;
const link = document.createElement('a');
link.setAttribute('href', data);
link.setAttribute('download', 'yourfilename.extensionType'); // Need to modify filename ...
link.click();
}
});
});

you can pass header to force file type and download
$file_path = storage_path('documents/request/'. $upload_report);
$headers = array('Content-Type'=> 'application/pdf');
return \Response::download($file_path, 'file.pdf', $headers);
here you need to add header based on your file type
ref link https://laravel.com/docs/8.x/responses#file-downloads

if(!empty($fileName) && file_exists(($exportDir.'/'.$fileName))) {
$data = route('yourdownloadCSV',['nameFile' => $fileName]);
}
return response()->json([
'status' => 1,
'data' => $data,
'message'=> trans('messages.item_upload_shop_ok'),
]);
public function yourdownloadCSV($nameFile) {
ini_set('memory_limit', '9072M');
ini_set('MAX_EXECUTION_TIME', '-1');
set_time_limit(10*60);
$fullFolderZipFile = public_path().'/export/'.date('ym');
$filePath = $fullFolderZipFile.'/'.$nameFile;
$nameDownload = "test";
if(file_exists($filePath)) {
$byteS = filesize($filePath);
$mb = number_format($byteS / 1048576, 2) ;
if($mb>10){
$filePathZip= ZipUtil::generateZipFromFile($filePath,$fullFolderZipFile,$nameFile);
$nameDownload .=".zip";
}else{
$filePathZip = $filePath;
$nameDownload .=".".pathinfo($nameFile, PATHINFO_EXTENSION);
}
$mimeType = File::mimeType($filePathZip);
return response()->download($filePathZip,$nameDownload,[
'Content-Type' => $mimeType,
'Content-Encoding' => 'Shift-JIS'
])->deleteFileAfterSend(true);
}
return '';
}

PHP not receiving AJAX POST from js File

I have been trying to work this out for hours now and cannot find any answer that helps me.
This is the code in my javascript file
function sendMovement(cel) {
var name = "test";
$.ajax({
type: 'POST',
url: '../game.php',
data: { 'Name': name },
success: function(response) {
console.log("sent");
}
});
}
This is the code from my PHP file (it is outside the js file)
if($_SERVER["REQUEST_METHOD"] == "POST") {
$data = $_POST['Name'];
console_log($data);
}
When debugging I can see that AJAX is sending a POST and it does print in the console "SENT" but it does not print $data
update: the function console_log() exists in my PHP file and it works

Try getting response in JSON format, for that your js should have dataType:'JSON' as shown below
JS Code:-
function sendMovement(cel) {
var name = "test";
$.ajax({
type: 'POST',
dataType:'JSON', //added this it to expect data response in JSON format
url: '../game.php',
data: { 'Name': name },
success: function(response) {
//logging the name from response
console.log(response.Name);
}
});
}
and in the current server side code you are not echoing or returning anything, so nothing would display in ajax response anyways.
changes in php server code:-
if($_SERVER["REQUEST_METHOD"] == "POST") {
$response = array();
$response['Name'] = $_POST['Name'];
//sending the response in JSON format
echo json_encode($response);
}

I fixed it by doing the following:
To my game.php I added the following HTML code (for debugging purposes)
<p style = "color: white;" id="response"></p>
Also added in my game.php the following
if($_SERVER["REQUEST_METHOD"] == "POST") {
$gameID = $_POST['gameID'];
$coord = $_POST['coord'];
$player = $_POST['player'];
echo "gameID: " . $gameID . "\nCoord: " . $coord . "\nPlayer: " . $player;
}
AND in my custom.js I updated
function sendMovement(cel) {
var handle = document.getElementById('response');
var info = [gameID, cel.id, current_player];
$.ajax({
type: 'POST',
url: '../game.php',
data: {
gameID: info[0],
coord: info[1],
player: info[2]
},
success: function(data) {
handle.innerHTML = data;
},
error: function (jqXHR) {
handle.innerText = 'Error: ' + jqXHR.status;
}
});
}

ajax running error despite response being 200

I have multiple uploads on a page, and I am workin on tidying it up, so:
Here's my js:
$(".img").change(function () {
var form = $(this).closest('form');
getPath(form);
})
deleteButton();
copyGalleryData();
});
function getPath(form) {
var name = $(form).attr('name');
submitImage(form, name);
}
var path_to_delete;
function submitImage(form, name) {
var url = '/image/upload';
var form_data = new FormData($(form)[0]);
submit(name);
form_data.append('img', $(form).children(".img"));
$.ajax({
url: url,
data: form_data,
dataType: 'json',
async: true,
type: 'post',
processData: false,
contentType: false,
success: function (data) {
console.log(data);
$(form).children('.image-container').append('<img id="image" name=' + name + '" src="' + data + '" />')
$(".imageDelete").attr('data', data);
alerts();
var deleting = false;
success(name, deleting, data);
$('.messages').html('<div class="alert alert-success">Image Uploaded!<div>');
},
error: function (data) {
alerts();
fail();
$('.messages').html('<div class="alert alert-danger">File type not supported! Use files with image extension only!</div>');
},
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
}
and controller:
class ImageController extends Controller
{
use S3;
public function upload(ImgRequest $request)
{
if ($request->hasFile('img')) {
$this->imageEntity();
return response()->json($path);
}
if ($request->hasFile('coverUpload')) {
$this->imageCover();
}
}
public function imageEntity()
{
$s3Path = config('app.path', public_path());
$image = Input::file('img');
Log::info('Retrieving Image', ['image' => $image]);
$filePath = 'public/logo/' . time() . '.' . $image->getClientOriginalExtension();
$path = $s3Path . $filePath;
$this->S3Store($filePath, $image);
$session = session()->get('key');
try {
$update_image = Entity::find($session);
$update_image->logo = $path;
$update_image->save();
Log::info('Succesfully saved logo for', ['entity_id' => $session]);
return response()->json($path);
} catch (Exception $e) {
Log::error('Images:', ['message' =>$e->getMessage(), 'entity_id' => $session]);
}
}
public function imageCover()
{
$s3Path = config('app.path', public_path());
$image = Input::file('coverUpload');
Log::info('Retrieving Cover', ['image' => $image]);
$filePath = 'public/cover/' . time() . '.' . $image->getClientOriginalExtension();
$path = $s3Path . $filePath;
$this->S3Store($filePath, $image);
$session = session()->get('key');
try {
$image = new Images;
$image->path = $path;
$image->cover = true;
$image->entity_id = $session;
$image->save();
Log::info('Succesfully saved logo for', ['entity_id' => $session]);
return $path;
} catch (Exception $e) {
Log::error('Images:', ['message' =>$e->getMessage(), 'entity_id' => $session]);
}
}
Now the funny thing is response is 200, however it is empty ($path is defined) and ajax is triggering error: part of the code and not success. I have checked the log, and try has been successful:
[2017-10-16 11:22:01] local.INFO: Retrieving Image {"image":"[object]
(Illuminate\Http\UploadedFile: /tmp/phpHPchM4)"} [2017-10-16
11:22:01] local.INFO: Adding to S3 [2017-10-16 11:22:05] local.INFO:
Succesfully added to S3 [2017-10-16 11:22:05] local.INFO:
Succesfully saved logo for {"entity_id":"324"}
Could anyone please help me solve this matter?
Update::
I have updated the controller so that the function returns $path, and main function return the response, however for some reason it is saying that $path is undefined, how to pass data from return to controller that is returned it?

Uncaught error:Cannot use 'in' operator to search for 'length' in

When I trying to return the inserted image as json I'm getting error like Cannot use in operator to search for length
Ajax code:
$("#imagesform").submit(function(){
$.ajaxSetup({
headers: { 'X-CSRF-TOKEN':
$('meta[name="_token"]').attr('content')
}
});
$.ajax({
url :"{{url('addImages/').'/'}}" + imagesProductId,
type: 'POST',
data:new FormData($("#imagesform").get(0)),
contentType:false,
processData:false,
success: function (data)
{
//alert(data);
//alert(json.parse(data));
$.each(data, function( index, value ) {
$("#insertedImages").append('<img src="'+value+'" width="75"
height="75" class="upload2"><br>');
alert(value);
});
},
});
return false;
});
Here the images get inserted into db.But while returning to the view and trying to display it with the div tag shows error..(specified above)
Controller:
public function addImages(Request $request,$imagesProductId)
{
$product = Product::create($request->all());
$filenames = array();
if (empty($request->images)) {
return Redirect::back()->withErrors(['msg', 'The Message']);
}
$rules = [
'images'=>'required'
];
$validator = Validator::make($request->all(), $rules);
$result = $validator->fails() ? 'QCFailed' : 'QCVerified';
// echo($result);
foreach ($request->images as $photo) {
$filename = $photo->store('public/uploadedImages');
$filename = substr($filename,22);
$filenames[] = asset('storage/uploadedImages/'.$filename);
ProductsPhoto::create([
'product_id' => $product->id,
'productId'=>$imagesProductId,
'nonliveStatus' => $result,
'filename' => $filename
]);
}
return response()->json($filename);
}
This is my controller function for inserting array of images and I'm returning the same to the view and trying to append it using div tag.

AJAX Post to .PHP to JSON Data-set || PHP File

Afternoon guys/gals,
I'm relatively new to using AJAX to POST information to a JSON file and I am not sure what the .php file should look like to process it. I have very little experience with .php. Am I on the right track? I've looked a lot of examples but most of them only have pieces of the .php file to process it. I am trying to inject the "task" into the JSON file which I then use handlebars to read on another page.
function fnCreateTask() {
var url = "save.php";
var title = $("#TaskTitle").val();
var date = $("#TaskDate").val();
var desc = $("#TaskDescription").val();
var info = {
Title: title,
Date: date,
Description: desc
};
var body = JSON.stringify(info);
$.ajax({
type: "POST",
url: url,
contentType: 'application/json',
data: body,
dataType: 'json',
error: function (err) {console.log(err)},
success: function (data) {
alert('Task Created.');
location.reload();
}
});
}
<?php
$fp = fopen('careers.json', 'w');
fwrite($fp, $_POST = json_decode(file_get_contents('php://input'), true););
fclose($fp);
?>

$.ajax POST (or GET for that matter) data will be x-form encoded by default when sent to the server. You can do
on the client
//object for the data
var data = {
title: $("#TaskTitle").val(),
date: $("#TaskDate").val()
};
$.ajax({
type: "POST",
url: "save.php",
data: data,
error: function (err) {console.log(err)},
success: function (data) {
alert('Task Created.');
location.reload();
}
});
and on the server
// as a separate object to be safe
$dataobj['title'] = $_POST['title'];
$dataobj['date'] = $_POST['date'];
// write json_encode object to file
file_put_contents ( 'filename.json' , json_encode($dataobj));

To create a JSON in PHP :
<?php
$array = array(
"name" => "toto",
"lastname" => "lafraise",
"age" => 33
);
$fp = fopen('careers.json', 'w');
fwrite($fp, json_encode($array));
fclose($fp);