Full-stack FastAPI: Pain Points, Scaling Challenges and Practical Fixes

  • Authors

    • Madhurima Kommuru MGR-Tech Prod Delivery at Claritev, USA. Author

    DOI:

    https://doi.org/10.67228/30715628/ICIoTCAA-2026P106

    Published 08-31-2026

  • FastAPI, Full-stack Development, API Scalability, Asynchronous Programming, Microservices Architecture, Performance Optimization, Cloud-native Applications, Backend Engineering, Kubernetes, Docker, Redis Caching, API Security, Distributed Systems, Observability, DevOps, Load Balancing, SQLAlchemy, CI/CD Pipelines, Uvicorn, System Reliability

    Issue

    ICIoTCAA26 - Conference Proceeding

    Section

    Articles

  • Abstract

    FastAPI has emerged as a popular framework for developing modern full-stack applications due to its high performance, simplicity, asynchronous programming support, and automatic API documentation. However, as applications scale, developers face challenges related to API latency, database management, asynchronous task coordination, authentication, deployment, testing, and system maintainability. This paper examines common challenges in FastAPI-based full-stack environments, including performance bottlenecks, dependency management, distributed scaling, and integration with frontend and cloud platforms. It presents practical optimization strategies such as asynchronous processing, caching, database connection pooling, containerization, load balancing, background task management, structured logging, and API monitoring. Through practical implementation experiences and case-study analysis, the study demonstrates that effective architectural design and performance optimization can improve the scalability, stability, maintainability, and operational efficiency of FastAPI applications.

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