Introduction

Kayaaku POS is a point-of-sales mobile application developed to help businesses and merchants in facilitating online and offline payments.

Kayaaku POS provides Card and QR payment methods on the following devices:

• mPOS - acquiring of international and domestic cards or QR payment transactions using the portable Mini POS device, integrated with merchant's own Android devices.
• EDC - acquiring of international and domestic cards or QR payment transactions using the All-in-One Electronic Data Capture (EDC) device.

note

The main integration methods for Kayaaku POS are Bluetooth, USB and HTTP (Web-based).

Bluetooth

info

Kayaaku POS via Bluetooth is available for both mPOS and EDC devices.

Only Android platform is supported for Kayaaku POS via Bluetooth.

Step	Sender	Receiver	Process
1	Merchant	MyXaaS	Merchant sends payment request to MyXaaS.
2	MyXaaS	Customer	MyXaaS presents payment screen.
3	Customer	MyXaaS	Customer makes payment.
4	MyXaaS	Customer	If the payment is processed successfully, MyXaaS displays payment receipt.
5	MyXaaS	Merchant	MyXaaS sends payment response to Merchant.
6	Merchant	MyXaaS	If the payment status is not received, Merchant proceeds to send transaction status enquiry to retrieve the transaction information.
7	MyXaaS	Merchant	MyXaaS returns the status information of the payment.
8	Merchant	Customer	Merchant displays the status information to the customer.

USB

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Kayaaku POS via USB serial cable is only available for mPOS device.

Only Android platform is supported for Kayaaku POS via USB.

Step	Sender	Receiver	Process
1	Merchant	MyXaaS	Merchant sends payment request to MyXaaS.
2	MyXaaS	Customer	MyXaaS presents payment screen.
3	Customer	MyXaaS	Customer makes payment.
4	MyXaaS	Customer	If the payment is processed successfully, MyXaaS displays payment receipt.
5	MyXaaS	Merchant	MyXaaS sends payment response to Merchant.
6	Merchant	MyXaaS	If the payment status is not received, Merchant proceeds to send transaction status enquiry to retrieve the transaction information.
7	MyXaaS	Merchant	MyXaaS returns the status information of the payment.
8	Merchant	Customer	Merchant displays the status information to the customer.

HTTP

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Kayaaku POS via HTTP (Web-based) is only available on EDC device.

The supported languages are:

1. Java
2. JavaScript
3. Python
4. .Net
5. PHP

Step	Sender	Receiver	Process
1	Merchant	MyXaaS	Merchant sends payment request to MyXaaS.
2	MyXaaS	Customer	MyXaaS presents payment screen.
3	Customer	MyXaaS	Customer makes payment.
4	MyXaaS	Customer	If the payment is processed successfully, MyXaaS displays payment receipt.
5	MyXaaS	Merchant	Merchant sends payment response to MyXaaS.
6	Merchant	MyXaaS	If the payment status is not received, Merchant proceeds to send transaction status enquiry to retrieve the transaction information.
7	MyXaaS	Merchant	MyXaaS returns the status information of the payment.
8	Merchant	Customer	Merchant displays the status information to the customer.