WordPress, TsatsaTayka, and Stripe Checkout API Integrations

Implementation Overview

This implementation covers the development of a custom WordPress theme and several plugins that connect the public-facing part of a website with external services. The work focused on a clear separation of responsibilities between the user interface, WordPress administration, server-side business logic, and API communication.

WordPress Development

• Custom theme – the solution is based on the Dozet WordPress theme, a responsive multilingual Bootstrap-based theme with dedicated templates, custom content types, and administration settings.
• Dedicated plugins – functionality is separated into individual WordPress plugins, making maintenance, testing, and further development of each component easier.
• WordPress REST API – custom metadata and content are available through standardized REST API routes, with validation and sanitization of input values.
• Dynamic user interface – data is retrieved from a connected system and displayed through custom components, without manually duplicating content in WordPress administration.

Connection with the TsatsaTayka System

A dedicated WordPress plugin was developed as an integration layer between the public WordPress layer and the TsatsaTayka business web system. TsatsaTayka acts as the central backend for processing and organizing data, while WordPress provides a customized user interface and content management.

Communication is performed through a REST API: the WordPress plugin retrieves the required data from the TsatsaTayka system and forwards requests to the server-side layer. This separation allows business logic, statuses, and automated processes to be maintained centrally, independently of the website presentation layer.

External API Service Integration

• Server-side API communication – separate PHP clients were developed for communication with external services, including response handling, errors, and network interruptions.
• Confirmed event processing – the system state changes only after a confirmed return event from an external service, preventing incomplete and duplicate processing.
• Document generation – integration with an external service enables generated PDF documents to be downloaded and stored alongside the relevant administration record.
• Configuration outside the source code – sensitive access data is loaded from environment configuration, without being written into the repository or publicly available settings.

Stripe Checkout

• Stripe Checkout – a WordPress plugin was developed to create a server-side Stripe Hosted Checkout session, redirect the user to a secure payment page, and process confirmed return events from Stripe.
• Administration tools – the integrations include pages for API connection checks, technical status review, manual record checks, and diagnostic log management.

Administration, Security, and Diagnostics

The administration area includes integration settings, connected-service availability checks, and technical status monitoring. Requests that change data go through authorization checks and validation, while important events are recorded in structured logs for easier troubleshooting and maintenance.

Technologies Used

The solution was developed using PHP, WordPress, REST API, Bootstrap, HTML, CSS, and JavaScript. The architecture relies on modular WordPress plugins and separate API clients for integration with external services.