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BackendChowdhury Duo Architecture

API Integration & Database Architecture

High-throughput REST/GraphQL APIs, payment gateway setups, database schema design, query tuning, and automated backup strategies.

verifiedExecutive Summary / Direct Answer

Our API & Database architecture ensures sub-second query performance, reliable payment handshakes, and resilient backup mechanisms.

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architectureDetailed Overview

Reliable data architecture is the foundation of every digital system. We design normalized schemas, optimized indexing structures, secure REST and GraphQL APIs, and reliable integrations with payment gateways, messaging services, crypto exchanges, and prediction markets.

checklistWhat's Included in this Service

✓Clean REST APIs and flexible GraphQL endpoints
✓Payment gateway integrations: Razorpay, Stripe
✓Messaging APIs (SMS, WhatsApp, Telegram, Email)
✓Crypto exchange and prediction market real-time data feeds
✓PostgreSQL, MySQL, MongoDB, and Firebase architecture
✓Database schema optimization, indexing, and query tuning
✓Automated backup strategies and disaster recovery planning

lightbulbTypical Real-World Use Cases

1Payment webhook processing with signature verification
2Database query optimization for high-traffic apps
3Real-time websocket feeds for market data
4Multi-database synchronization and migration pipelines

quizFrequently Asked Questions

We implement strategic compound indexes, connection pooling, prepared statements, Redis caching, and normalized schema design.

Technologies Used

PostgreSQLMySQLMongoDBPrisma ORMGraphQLRESTRedisFirebase

Other Services

Business Automation & Workflow Optimization

End-to-end automation pipelines including cold email sequences, CRM synchronization, AI call/chat agents, and invoice processing.

Full-Stack & Web Application Development

High-performance modern web apps built with Next.js, React, TypeScript, Node.js, Python, and scalable SQL/NoSQL databases.

SaaS & Custom Business Solutions

Scalable SaaS product engineering, multi-tenant systems, subscription billing, analytics dashboards, and local AI toolchains.

Have Questions?

Contact Sampad directly to discuss scope, milestones, and deliverables.

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