Vietnam API Introduction

Environment

Environment	Protocol	MediaType	Base URL
SandBox	https	application/json	https://sandbox-gateway.smilepayz.com
Production	https	application/json	https://gateway.smilepayz.com

API Introduction

Vietnam’ digital payment ecosystem is vibrant and rapidly growing, driven by widespread adoption of payment gateway APIs. Key solutions include e-wallets like MOMO payment methods to meet diverse merchant and user needs.

The system is well-adapted to local market habits and infrastructure, with strong security and compliance that protect user data and funds. Real-time, flexible processing enhances user experience, while cross-border capabilities support international commerce and remittances.

Developer- and merchant-friendly APIs enable easy integration and fast deployment, fueling ongoing innovation and financial inclusion toward a cashless society.

GitHub

java demo

• PayInRequestDemo.java for pay in request
• PayoutRequestDemo.java for pay out request
• InquiryBalanceDemo.java for balance inquiry
• InquriyOrderStatusDemo.java for order status inquiry
• SignatureUtils.java Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

python demo

• pay_in_request_demo.py for pay in request .
• pay_out_request_demo.py for pay out request.
• balance_inquiry.py for balance inquiry.
• status-inquiry.py for order status inquiry.
• Tool_Sign.py Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

node.js demo

• pay_in_request_demo.js
• pay_out_request_deom.js
• inquiry_balance_demo.js
• inquiry_order_status.js
• SignatureUtils.js Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

php demo

• PayInRequestDemo.php:
• PayoutRequestDemo.php:
• InquiryBalanceDemo.php:
• InquiryOrderStatusDemo.php:
• Signature.php: Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

c# demo

• PayInRequestDemo.cs
• PayOutRequestDemo.cs:
• BalanceInquiryDemo.cs:
• OrderStatusInquiryDemo.cs:
• SignatureUtils.cs: Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

golang demo

• /v2/PayInRequestDemoV2.go
• /v2/PayoutRequestDemov2.go:
• /v2/BalanceInquiryDemoV2.go:
• /v2/OrderStatusInquiryDemoV2.go:
• /common/SignatureUtils.go: Provide minify(body) method, sha256RsaSignature method and checkSha256RsaSignature.

The current document version is above 1.0.5 (including 1.0.5). Please download 1.0.5 and install it before payment

• Download Plugin V1.0.5

Install

• After finding the plugin in the results, click Install Now. ...
• To use the plugin, you'll need to activate it. ...
• Click Upload Plugin at the top of the page.
• Click Choose File, locate the plugin . ...
• After the installation is complete, click Activate Plugin.fter finding the plugin in the results, click Install Now. ...
• To use the plugin, you'll need to activate it. ...
• Click Upload Plugin at the top of the page.
• Click Choose File, locate the plugin . ...
• After the installation is complete, click Activate Plugin.

Configuration

• Step.1 -Configuration MerchantID. MerchantSecret...
  
• Step.2 -Enable payment list.