Payment Processing in Rental and Sharing Services: Architecture and Implementation Costs

In sharing services, payments are a continuous process rather than a one-time transaction. The system must manage funds in real-time, synchronizing the bank, backend, and IoT devices. The architecture is built around card tokenization, deposit blocking (hold), automated incremental charging, and final settlement (capture). This requires the use of event queues, retry mechanisms, and protection against synchronization errors. Such a model incorporates a payment provider, server-side logic, and an IoT-level for device management. A properly designed payment architecture mitigates financial risks and allows the service to scale without cash flow gaps.