How Tapaya added in-store card payments to a POS app in an afternoon

Roman Kuchařík, co-founder of Tapaya, discusses the development of a software-only SoftPOS infrastructure that simplifies the process of accepting in-person card payments by turning mobile devices into secure payment terminals. At a Hackathon in Prague, Tapaya tested the speed of building a production-ready POS application using Expo, achieving the first approved payment in less than an afternoon. The app, designed for a local coffee shop, demonstrated the integration of modern payment infrastructure into a React Native application, featuring inventory management, transaction handling, and contactless card payment capabilities without requiring external terminals. Expo was chosen for its ability to simplify native mobile setup, utilizing Config Plugins and EAS Build to streamline the process. The integration involved adding a Config Plugin, installing the SDK, setting up backend authentication, and initializing the SDK, with Tapaya's SDK abstracting complex backend processes like EMV communication and payment compliance. With the payment infrastructure in place, future developments focus on enhancing the merchant experience, such as adding Bluetooth printer support and offline transaction queuing, highlighting the effectiveness of the streamlined integration for AI-assisted development workflows.

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