Payment Kiosk

API Variant Specifications

The device includes:

• Hardware of the pay station and selected peripherals
• API for controlling peripherals
• Communication interface for the client application

The client application should include:

• GUI application displayed on the pay station’s screen
• Configuration of the pay station and required fees
• Service menu (cash collection, service, and maintenance)
• Receipt storage

A custom application can be provided by the customer or ordered as custom development from Green Center.

In such a case, it will be priced according to the customer’s requirements.

Communication Interface

Pro implementaci zakázkové aplikace slouží komunikační rozhraní splňující:

• gRPC (Remote Procedure Call framework využívající Protocol Buffers pro serializaci a přenos dat pomocí HTTP protokolu)
• obousměrnou komunikaci a obsluhu několika klientů současně
• podporu nejpoužívanějších programovacích jazyků (C#, C++, Java, Node, PHP, Python, Ruby…)
• popis rozhraní pomocí .proto souborů, z nichž je automaticky generována implementace komunikace ve zvoleném jazyce

API for controlling peripherals

Peripheral IO Handling

• Buttons
• Navigation arrows

Payment

• Execute payment (cash/card)
• Cancellation, change of payment method
• Payment progress information

Printing

• Simple documents (text and 2D code)
• Alignment of individual document parts
• Font selection

Coin Validator, Banknote Reader, Banknote Recycler

• Cash status information
• Cash replenishment or dispensing
• Cash drawer selection
• Ensuring persistence between software restarts
• Management of accepted denominations

HW Status Reporting

• Device malfunctions
• Low cash level
• Printer running out of paper
• Full cash drawer
• Open entry door
• Cash drawer removed

Delivery from GC includes documentation for the kiosk’s communication interface. To receive this documentation, an NDA must be signed.