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Case study

Payment Service API

Project Overview

Unified Payment Service API for Stripe, PayPal, and Razorpay integrations. Reusable endpoints support payment webhooks, refunds, and transaction status tracking for external applications.

Payment integration project · Webkul experience context

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Payment Service API preview

Existing Preview & Demo

Existing portfolio preview for Payment Service API. Some previews are product artwork rather than application screenshots. Use the project link to explore the original product.

Payment integration project · Webkul experience context

Business Problem

Applications integrating several payment providers need a consistent way to work with payments, refunds, webhooks and transaction status.

My Role and Responsibilities

My Webkul experience records development of payment integration services using PHP, Symfony, secure APIs and webhooks. The Payment Service API is listed in my portfolio; its exact ownership and delivery context need confirmation.

Technical Challenges

The documented scope brings Stripe, PayPal and Razorpay behind reusable endpoints. Provider-specific payment state and webhook behavior are relevant integration concerns; the actual implementation decisions are not yet documented.

Architecture / Technical Solution

A unified Payment Service API exposes reusable endpoints for external applications, covering provider integrations, payment webhooks, refunds and transaction status tracking. The existing API documentation link is retained below.

Technologies Used

  • Stripe
  • PayPal
  • Razorpay
  • Payment APIs
  • Webhooks

Features Implemented

Documented product scope; individual feature ownership is subject to the role notes above.

  • Three payment provider integrations
  • Reusable endpoints for external applications
  • Payment webhooks
  • Refund handling
  • Transaction status tracking

Results / Outcomes

The portfolio includes a link to API documentation. No transaction volume, availability, reconciliation accuracy or revenue results have been provided.

Editorial TODOs: evidence to add
  • Confirm ownership, employer attribution and which endpoints I implemented.
  • Add a sanitized request-flow diagram and verified retry/security design.
  • Confirm documentation availability and provide permission-cleared outcome evidence.

Next step

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