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Laravel 9 and Javascript: how to download a file returned from Storage::download()

DISCLAIMER: Before creating this question, I've checked here, here and here, and also checked Laravel docs.
Context
Laravel 9 full-stack
No JS framework on front-end, which means I'm using vanilla JS
The folders on Storage are setted like this:
storage
app
public
folder1
folder1A
folder1B
folder1C
etc
The files stored in each folder1X are .pdf format and I don't know its names.
No folders are empty, nor with invalid/corrupted files.
The problem
I have a FileController.php to download files that are inside a folder1X/ directory. The method to download it is as follows:
public function downloadFileFromStorage(Request $request): mixed
{
$dirpath = $request->dirpath; // dirpath = public/folder1/folder1X.
$files = Storage::allFiles($dirpath);
return response()->download(storage_path('app\\' . $files[0]));
}
(Note: dirpath is sent in a axios request by client and is also fetched from database on a previous request)
My Javascript CLI needs to enable the download of this file. The download is enabled by clicking on a button. The button calls downloadPDF(dirpath) which works as follows:
function downloadPDF(dirpath) {
axios.post('/download-pdf-file', { dirpath })
.then(
success => {
const url = success.data
const a = document.createElement('a')
a.download = 'file.pdf'
a.href = url
a.click()
},
error => {
console.log(error.response)
}
)
}
But, when I run this function, I get a about:blank#blocked error.
Attempts
Changed the a HTML DOM approach to a window.open(url) on client;
Changed response() to Storage::download($files[0], 'file-name.pdf'), and with this I also tried using Blob on client as follows:
success => {
const blob = new Blob([success.data], { type: 'application/pdf' })
const fileURL = URL.createObjectURL(blob)
window.openURL(fileURL)
},
Also mixed Blob with the a HTML DOM approach;
Changed storage_path argument to /app/public/ before concatenating to $files[0].
UPDATE
Following tips from #BenGooding and #cengsemihsahin, I changed files to the following:
JS
// FileDownload is imported on a require() at the code beginning
function downloadPDF(dirpath) {
axios({
url: '/download-pdf-file',
method: 'GET',
responseType: 'blob',
options: {
body: { dirpath }
}
}).then(
success => {
FileDownload(success.data, 'nota-fiscal.pdf')
}
)
}
PHP:
public function downloadFileFromStorage(Request $request): mixed
{
$dirpath = $request->dirpath; // dirpath = public/folder1/folder1X.
$files = Storage::allFiles($dirpath);
return Storage::download($files[0], 'filename.pdf');
}
and now it downloads a corrupted PDF that can't be opened.

Finally found the issue, and it was here:
axios({
url: '/download-pdf-file',
method: 'GET',
responseType: 'blob',
options: { // here
body: { dirpath } // here
}
})
Laravel's Request arrow operator -> can't fetch a GET body sent through options (At least, not on $request->key fashion; see more about it here) thus making me download a corrupted file - it wasn't fetching any file on Laravel as it didn't get any path at all.
Here is the solution I came with:
As I want to get a file in a route that doesn't change except for the 1X at folder1X, I'm processing the path obtained and sending the 1X as a GET query param:
let folderNumber = dirpath.split('/')
folderNumber = folderNumber[folderNumber.length].replaceAll('/', '')
axios({
url: '/download-pdf-file?folder=',
method: 'GET',
responseType: 'blob'
})
This way I don't pass the whole path to back-end and it's possible to get folderNumber by using $request->query():
public function downloadFileFromStorage(Request $request): mixed
{
$folderNumber = $request->query('folderNumber');
$folderPath = '/public/folder1/folder' . $folderNumber . '/';
$files = Storage::allFiles($folderPath);
return Storage::download($files[0], 'file-name.pdf');
}
In a nutshell:
To download files, use GET requests;
To send arguments within GET requests, use query parameters and fetch them with $request->query('keyname') (or find out another way. Good luck!);

Django-Stripe how to get the product data in the checkout session

I am still new to django and I am working on a django website whereby users can purchase goods and pay through Stripe. I have been following a tutorial and the tutorial has managed to make a payment but the problem is that the figures they are using are hard coded. My issue currently is how to get the values of what I am selling from the database.
Here is my views.py:
def bookService(request, gig_id):
gig = Gig.objects.get(gig_id = gig_id)
context = {'gig':gig}
return render(request, 'payments/book.html', context)
#csrf_exempt
def create_checkout_session(request):
#Updated- creating Order object
order=Order(email=" ",paid="False",amount=0,description=" ", buyer=request.user.profile)
order.save()
session = stripe.checkout.Session.create(
client_reference_id=request.user.id if request.user.is_authenticated else None,
payment_method_types=['card'],
line_items=[{
'price_data': {
'currency': 'usd',
'product_data': {
'name': 'Intro to Django Course',
},
'unit_amount': 10000,
},
'quantity': 1,
}],
#Update - passing order ID in checkout to update the order object in webhook
metadata={
"order_id":order.id
},
mode='payment',
success_url=YOUR_DOMAIN + '/success.html',
cancel_url=YOUR_DOMAIN + '/cancel.html',
)
return JsonResponse({'id': session.id})
Here is the URLs file
urlpatterns = [
path('seller/<str:gig_id>/', views.bookService, name='home'),
path('create-checkout-session/', views.create_checkout_session, name='checkout'),
path('success.html/', views.success,name='success'),
path('cancel.html/', views.cancel,name='cancel'),
]
And here is the template whereby I am viewing the details and also whereby the button that redirects users to pay is located:
<script type="text/javascript">
// Create an instance of the Stripe object with your publishable API key
var stripe = Stripe('');
var checkoutButton = document.getElementById('checkout-button');
checkoutButton.addEventListener('click', function() {
// Create a new Checkout Session using the server-side endpoint you
// created in step 3.
fetch('/create-checkout-session/', {
method: 'POST',
data: JSON.stringify({
amount: "{{ gig.service_cost }}" * 100,
description: "{{ gig.title }}",
gig_id: "{{ gig.gig_id }}",
}),
})
.then(function(response) {
return response.json();
})
.then(function(session) {
return stripe.redirectToCheckout({ sessionId: session.id });
})
.then(function(result) {
// If `redirectToCheckout` fails due to a browser or network
// error, you should display the localized error message to your
// customer using `error.message`.
if (result.error) {
alert(result.error.message);
}
})
.catch(function(error) {
console.error('Error:', error);
});
});
</script>
Also here is the model whereby I want to save the order:
class Order(models.Model):
buyer = models.ForeignKey(Profile, on_delete=models.CASCADE)
# product = models.ForeignKey(Gig, on_delete=models.CASCADE)
email = models.EmailField(max_length=254)
paid = models.BooleanField(default="False")
delivered = models.BooleanField(default="False")
amount = models.IntegerField(default=0)
description = models.CharField(default=None,max_length=800)
def __str__(self):
return self.email
I have commented out the product line as I try to look for solutions. Any assistance will be highly appreciated.
I have tried loading json from the template but it seems not to work. Here is the json line I added to the script;
method: 'POST',
data: JSON.stringify({
amount: "{{ gig.service_cost }}" * 100,
description: "{{ gig.title }}",
gig_id: "{{ gig.gig_id }}",
}),

I am working on a django website and having trouble in calling a function at the correct place

I have a checkout form on my django website:<form class="row contact_form" action="." method="post" id="form">. That form has a submit button at the end:<input id="form-button" class="btnabc btnabc-outline-info btnabc-lg" type="submit" value="Continue to Payment">
On clicking this button I want to redirect the user to the payment gateway and if his transaction is successful I want to save his information that he entered in the form:
This is the javascript code for the button:
document.getElementById('payment-info').addEventListener('click', function (e) {
submitFormData()
})
function submitFormData() {
console.log('Payment Button Clicked')
var userFormData = {
'name': null,
}
var shippingInfo = {
'address': null,
}
shippingInfo.address = form.address.value
userFormData.name=form.name.value
var url = "/process_order/"
fetch(url, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'X-CSRFToken': csrftoken,
},
body:JSON.stringify({'form': userFormData, 'shipping': shippingInfo }),
})
.then((response) => response.json())
.then((data) => {
console.log('Success:', data);
alert('Transaction Completed')
window.location.href = "{% url 'index' %}"
})
}
This is my views.py:
def processOrder(request):
transaction_id = datetime.datetime.now().timestamp()
data = json.loads(request.body)
if request.user.is_authenticated:
customer=request.user.customer
order, created=Order.objects.get_or_create(customer=customer, complete=False)
total=float(data['form']['total'])
order.transaction_id=transaction_id
if total == order.get_cart_total:
order.complete = True
order.save()
ShippingAddress.objects.create(
customer=customer,
order=order,
address=data['shipping']['address'],
city=data['shipping']['city'],
state=data['shipping']['state'],
zipcode=data['shipping']['zipcode'],
name=data['form']['name'],
email=data['form']['email'],
mobile=data['form']['mobile'],
)
param_dict = {
'MID': 'DIY12386817555501617',
'ORDER_ID': str(order.id),
'TXN_AMOUNT': '4',
'CUST_ID': 'j',
'INDUSTRY_TYPE_ID': 'Retail',
'WEBSITE': 'WEBSTAGING',
'CHANNEL_ID': 'WEB',
'CALLBACK_URL':'http://127.0.0.1:8000/handlerequest/',
}
param_dict['CHECKSUMHASH'] = Checksum.generate_checksum(param_dict, MERCHANT_KEY)
return render(request, 'paytm.html', {'param_dict': param_dict})
return HttpResponse('Done')
#csrf_exempt
def handlerequest(request):
# paytm will send you post request here
form = request.POST
response_dict = {}
for i in form.keys():
response_dict[i] = form[i]
if i == 'CHECKSUMHASH':
checksum = form[i]
verify = Checksum.verify_checksum(response_dict, MERCHANT_KEY, checksum)
if verify:
if response_dict['RESPCODE'] == '01':
print('order successful')
else:
print('order was not successful because' + response_dict['RESPMSG'])
return render(request, 'paymentstatus.html', {'response': response_dict})
This handlerequest function is basically for checking if the transaction is verified or not.
This is my paytm.html
<form action="https://securegw-stage.paytm.in/theia/processTransaction" method="post" name="paytm">
{% for key,value in param_dict.items %}
<input type="hidden" name="{{key}}" value="{{value}}">
{% endfor %}
</form>
</body>
<script>
document.paytm.submit()
</script>
Currently whenever I click on the payment button it just saves the information of the form (submitformdata() in javascript) without verifying the transaction and also i am not taken to the payment page where the user can pay.
The error is with the place where I am calling the submitformdata function and I cant figure out a way to call that function only when the transaction is verified. Please help me figuring out a way to do so. Any help would be appriciated.

actually the reason is when you try to implement this you haven't put this in the server right now so the paytm cant get access to the callback url for transaction verification just like i cant able to access 127.0.0.1:8000 from my laptop right now so you have to deploy that app so there is one thing you can do is use 'pagekite.net' and you get run temparary app on that url and make call back url accorging to that

Loading images in vue.js from an API

Consider this:
An API loads a manifest of image metadata. The images have an ID, and with another API call returns a base64 image from the DB. The model for the manifest is attachmentRecord and the ID is simply a field.
I would rather not preload these large strings into an array (that would work).
so I have this (which lazy loads on any manifest change):
<div v-for="(attachment, index) in attachmentRecord" :key="index">
<img :src="fetchImage(attachment.id)" />
</div>
fetchimage() is a wrapper for an axios function which returns back from a promise. (writing this from memory):
this.axios({
method: "get",
url: url,
}).then(res => res.data)
.catch(() => {
alert("Unable to load raw attachment from this task and ID");
});
}
Now, the network calls go thru fine, the ID passes in correctly, I can see the base 64data, but they don't seem to make it to wrapper function or the src attribute. It always comes up blank. I tried wrapping it in another promise,only to get a promise back to the src attribute. What would be a best practice for this situation in Vue?
Ok, so far I made these changes with Constantin's help:
I tried to strip it down without a helper function:
Vue template Code:
<div v-for="(attachment, index) in attachmentRecord" :key="index">
<img :src="getAttachmentFromTask(attachment.id)" />
base method:
async getAttachmentFromTask(attachmentID) {
if (!attachmentID) alert("Unknown Attachment!");
let sendBack = "";
let url = "/server/..."
await this.axios({
method: "get",
url: url
})
.then(res => {
sendBack = res.data;
})
.catch(() => {
alert("Unable to load raw attachment from this task and ID");
});
// >>>>>>>>>alerts base64 correctly; Vue loads [object Promise] in img
alert(sendBack);
return sendBack;
}

It turns out that Vue doesn't handle async / await as well as I thought. Therefore, you have to save the image data to each attachment in attachmentRecord. This getAttachmentFromTask method now handles this when accessed the first time and populates a data property for the corresponding attachment object. On successive calls, that property is returned if it is already populated. Note the usage of Vue.set() because the property is not available in the initial data, but we want it to be reactive. You can even set up a fallback image like a loader, see the shortly flickering SO logo without text before the larger logo appears:
new Vue({
el: '#app',
data: {
attachmentRecord: [{
id: 1
}]
},
methods: {
getAttachmentFromTask(attachmentIndex, attachmentID) {
let record = this.attachmentRecord[attachmentIndex];
if (!record.data) {
Vue.set(record, 'data', null);
axios.get('https://kunden.48design.de/stackoverflow/image-base64-api-mockup.json').then((result) => {
Vue.set(record, 'data', result.data);
});
}
return this.attachmentRecord[attachmentIndex].data;
}
}
});
img {
max-width: 100vw;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.19.0/axios.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.min.js"></script>
<div id="app">
<div v-for="(attachment, index) in attachmentRecord" :key="index">
<img :src="getAttachmentFromTask(index, attachment.id) || 'https://cdn.sstatic.net/Sites/stackoverflow/img/apple-touch-icon.png'" />
</div>
</div>
old answer: (Unfortunately doesn't work that way with Vue currently)
Axios requests are asynchronous by default. So the function doesn't wait for then() to return the value. You could add the async keyword before your fetchImage function name and add the await keyword before this.axios. Then make the then callback assign the return value to a variable in the fetchImage function scope and have the function return it.
async fetchImage() {
let returnValue;
await this.axios({
method: "get",
url: url,
}).then(res => { returnValue = res.data; })
.catch(() => {
alert("Unable to load raw attachment from this task and ID");
});
return returnValue;
}

Jaspersoft visualise.js report export failing to produce file

I hope there is few among you who have experience with Jaspersoft Reports and their new visualise.js api
I have a problem with visualise.js not producing report export file. What happens is:
I am able to succsefully load the report through the visualise.js API, it loads and displays on my web page
Export controls load up successfully too, so I have dropdown with export file formats and a button to export the file.
When I click the export button though, the whole page reloads as if the export button was really a submit button and nothing happens.
Occasionally, the export will work and it will produce file. Though there is no pattern to when it will produce the file and when it will fail.
Below is the code I am using for this (I am using plain text auth for testing purposes):
visualize({
auth: {
name: "mylogin",
password: "mypass",
organization: "organization_1"
}
}, function (v) {
var $select = buildControl("Export to: ", v.report.exportFormats),
$button = $("#button"),
report = v.report({
resource: "/FPSReports/journal",
container: "#export",
params: {
"journal_ref": [ "<?php echo $reference; ?>" ],
},
success: function () {
button.removeAttribute("disabled");
},
error : function (error) {
console.log(error);
}
});
$button.click(function () {
console.log($select.val());
report.export({
// export options here
outputFormat: $select.val(),
// exports all pages if not specified
// pages: "1-2"
}, function (link) {
var url = link.href ? link.href : link;
window.location.href = url;
}, function (error) {
console.log(error);
});
});
function buildControl(name, options){
function buildOptions(options) {
var template = "<option>{value}</option>";
return options.reduce(function (memo, option) {
return memo + template.replace("{value}", option);
}, "")
}
var template = "<label>{label}</label><select>{options}</select><br />",
content = template.replace("{label}", name)
.replace("{options}", buildOptions(options));
var $control = $(content);
$control.insertBefore($("#button"));
//return select
return $($control[1]);
}
});
HTML:
<div class="grid">
<div class="grid-8"></div>
<div class="grid-8 center">Export</div>
<div class="grid-8"></div>
</div>
<div class="grid">
<div class="grid-24" id="export"></div>
</div>
The only parameter comes from URI segment (I am using codeigniter framework):
$reference = $this->uri->segment(3, 0);

I have found an answer that seems to work, and has resolved the issue. Posting it here in case anyone else has this specific problem like I did.
In brief:
After spending hours looking at console debug output I have realised that each time I tried to send a request for export a new session would be opened. Without logging out of the previous one. And apparently that is a no-no. I do not know JS very well but from what I understood there was session id mismatch in request. Please feel free to correct me here :)
The solution to this problem (or for example if you are having authentication issues with visualize.js) is very simple. Set the authentication in global config:
visualize.config({
auth: {
name: "superuser",
password: "superuser"
}
});
No matter if you are using tokens or plain text or whatever else auth is available through the api.
Then do your stuff wherever else on your website:
visualize(function (v) {
v("#container1").report({
resource: "/public/Samples/Reports/06g.ProfitDetailReport",
error: function (err) {
alert(err.message);
}
});
});
visualize(function (v) {
v("#container2").report({
resource: "/public/Samples/Reports/State_Performance",
error: function (err) {
alert(err.message);
}
});
});
Everything should work for you as it did for me. This works in version 5.6 and 6.1 of visualize.js.
Further reading and links from my research:
Token based authentication to Jasper reports failing when used with visualize.js
Visualize.js authentication error after second login
http://community.jaspersoft.com/questions/842695/visualizejs-authentication-error
http://community.jaspersoft.com/questions/845886/authentication-error-refresh-credentials-visualizejs
Code example (5.6):
http://jsfiddle.net/TIBCO_JS_Community/sozzq0sL/embedded/
Api samples (6.1):
http://community.jaspersoft.com/wiki/visualizejs-api-samples-v61
Api samples (5.6):
http://community.jaspersoft.com/wiki/visualizejs-api-notes-and-samples-v56
Really hope this will help someone new to Jaspersoft & visualize.js like me.