Square Paymanet ,handheld device, qr code

Hi,
would it be possible to add an option/feature to the Square plugin that, when a customer pays on-site using a Square handheld device, automatically generates a ticket or QR code. This ticket/QR code is printed by the merchant’s device, then transmitted via the Square/handheld /API to the event-booking system, where it can be processed and scanned using the mobile scanner app?

Honestly, I do not understand exactly how you want/expect it to work. But this is something I don't think I will work on in near future

Regards,

Tuan

OK..
What i am are looking for:

I am looking for "an all-in-one mobile ticketing system" that can:

create tickets directly on a handheld POS device

print QR codes on the ticket

accept payments on the device (card, NFC, etc.)

include a web-based management backend

include an online ticket shop for customers ( to also buy tickets online)

This requires a combination of ticketing software + compatible handheld hardware (Android POS / IOS with printer i.e. bluetooh).

A complete solution can be built by combining:

1. Backend system (Admin + Online Shop)

Build one central backend that handles:

event/product management

ticket creation (with unique ticket IDs)

QR code generation (e.g., encoded ticket UUID)

online sales via a web shop

REST API for handheld devices

Useful stack examples: Django, Laravel, Node.js, Go, etc.

2. Android / IOS App on a handheld POS with printer

Use an Android/ IOS based handheld POS terminal that includes:

a built-in 58mm thermal printer or connected via bluetooh

internet (4G + Wi-Fi)


barcode/QR scanner (optional)

integrated EMV + NFC payment module (depending on device model)

Apps would:

Authenticate with the backend

Retrieve events/products and price lists

When selling a ticket:

send a POST request to the backend

backend creates the ticket

backend returns ticket metadata + QR payload

The app generates a QR code and prints it via the printer

For payments:

integrate the PSP’s (payment service provider) SDK directly into your app

or trigger the device’s built-in payment application (many Android POS terminals allow passing the payment amount via an API)

3. Payment integration

For payments inside the handheld app:

integrate a PSP like Stripe Terminal.

or use the terminal’s existing EMV payment app (depending on manufacturer—PAX, Sunmi, etc.)

Online payments in the web shop:

integrate the same PSP for consistency.

4. Ticket formats & validation

Each ticket contains:

a unique ID

a timestamp

a cryptographically secure QR code

Validation at the event or access gate:

use a scanning mode in the Android app

or a separate scanning device that calls your backend to mark tickets as scanned.

And of course we can talk about money here to get this project done.

Sorry. I'm afraid of this is a too big project and we could not handle it

Regards,

Tuan

Can you provide an interface where I can send the data via POST from an app, similar to how it works with the scanner app?”

Sorry. It is not supported at the moment. Maybe in the future when we support web service, but it is not possible for now

Tuan