iGaming Wallet & API Hub
To create a scalable, secure, and real-time API integration system for iGaming — enabling casinos to seamlessly connect games, player wallets, payments, and promotional campaigns across multiple platforms.
faster wallet and transaction processing
reduction in manual reconciliation efforts
improvement in system scalability and uptime
higher integration speed for casino partners
Quick Project Snapshot
Spain
iGaming
B2B
Agile
Client Overview
The client, a leading iGaming provider, required a centralized system to connect casino platforms with the iGaming suite. Their goal was to simplify wallet handling, transaction management, jackpots, and campaigns under a single, secure API infrastructure that supports high-volume global operations while maintaining real-time accuracy.
Handles deposits, withdrawals, and balance checks in real time.
Prevents duplicates using idempotent transaction logic.
Supports multiple currencies and wallet synchronization.
Provides full game library access through REST APIs.
Displays live jackpot levels and leaderboard data.
Updates player winnings and session results instantly.
Manages bonus spins, player rewards, and tournaments.
Automates campaign eligibility and spin redemption.
Tracks usage data and reporting for partners.
Integrates third-party payment systems for deposits and payouts.
Supports webhook notifications for transaction confirmation.
Validates IBAN and account details for accuracy.
Decoupled Wallet, Payments, and Game services for scalability.
Uses Kafka message streaming for asynchronous communication.
Ensures smooth performance under heavy transaction loads.
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Project Goals
Develop a plug-and-play API structure allowing casinos to onboard easily with minimal configuration.
Enable instant deposits, withdrawals, and balance updates for smooth player experiences.
Design a cloud-native, modular system to handle high traffic and concurrent gameplay.
Ensure every transaction and API call is encrypted, verified, and compliant with industry standards.
Challenges & Solutions
Managing real-time wallet balances across multiple casino platforms and currencies was difficult, especially when simultaneous deposits, withdrawals, and reversals occurred. Delays could lead to mismatched player balances and disputes.
Implemented idempotent API logic with unique transaction identifiers and timestamp validation. This ensured every wallet operation was executed once and mirrored instantly across systems, eliminating data mismatches and boosting transaction reliability.
Integrating external payment processors like PayPal & Fri payment while ensuring compliance, fast validation, and accurate reporting across all regions was a major challenge.
Designed a dedicated Payments Microservice that validated deposits, handled callbacks, and tracked webhooks in real time. By creating structured workflows and automated reconciliation, it minimized manual effort and improved transaction accuracy by over 60%.
Peak gaming periods created extremely high transaction loads, leading to potential slowdowns and bottlenecks in wallet and game APIs.
Shifted to a microservices-based architecture on AWS EKS, using Kafka for asynchronous event handling. This allowed horizontal scaling on-demand, reducing latency and maintaining stable performance even during heavy traffic surges.
Ensuring the authenticity and integrity of each API request was critical to prevent tampering, duplication, or fraudulent transactions
Enforced HMAC-SHA512 encryption with timestamp-based validation on every API call. Combined with secure JWT authentication, it provided full end-to-end data protection and prevented replay or fake transaction attempts.
Wallet, Payments, and Game APIs operated as separate modules, and any delay in message delivery caused inconsistencies across systems.
Implemented a Kafka-based event-driven message flow, ensuring guaranteed delivery and real-time synchronization among all services. This architecture improved transaction traceability and reduced communication failures significantly.
Tech Stack Used
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