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.

  • References

    [1] Aleksendrić, Marko, et al. Full stack FastAPI, React, and MongoDB: fast-paced web app development with the FARM stack. Packt Publishing Ltd, 2024.

    [2] Aleksendrić, Marko. Full Stack FastAPI, React, and MongoDB. Packt Publishing Limited, 2022.

    [3] Drofa, Denys. "Integrating advanced api solutions into full-stack web and mobile applications to optimise user experience." International Journal of Current Science Research and Review 8.05 (2025).

    [4] Prabhakar, Rohit Reddy Chananagari. "Scalability and Performance Challenges in Full-Stack Applications."

    [5] Peters, Tim. Practical Python Backend Programming: Build Flask and FastAPI applications, asynchronous programming, containerization and deploy apps on cloud. GitforGits, 2024.

    [6] Lubanovic, Bill. FastAPI. " O'Reilly Media, Inc.", 2023.

    [7] Roca Vanrell, Antoni. "Development of a repository-driven web application for machine learning models tailored for software engineering tasks." (2025).

    [8] de Oliveira, Ana Rita Baptista. Designing for Astronomical Scale: Visualization and Interaction with Adaptive Optics Telemetry. MS thesis. Universidade do Porto (Portugal), 2025.

    [9] Edward, Shakuntala Gupta, Rahul Bhattacharya, and Vikas Sinha. "End-to-End Implementation of a Practical Use Case." Enterprise Guide for Implementing Generative AI and Agentic AI: A Practical Guide to Developing, Deploying, and Operationalizing AI-Driven Applications for Enterprise Use. Berkeley, CA: Apress, 2025. 161-248.

    [10] Verma, Nikhil, and Krishna Prasad. "Responsive parallelized architecture for deploying deep learning models in production environments." arXiv preprint arXiv:2112.08933 (2021).

    [11] Wang, Yaoqi, et al. "A Bilingual Acupuncture Question Answering System via Lightweight LLMs and Retrieval-Augmented Generation."

    [12] Shi, Isaac, et al. "eSapiens: A Platform for Secure and Auditable Retrieval-Augmented Generation." arXiv preprint arXiv:2507.09588 (2025).

    [13] Chattopadhyay, Souti, et al. "What's wrong with computational notebooks? Pain points, needs, and design opportunities." Proceedings of the 2020 CHI conference on human factors in computing systems. 2020.

    [14] Mirhosseini, Samim, Austin Z. Henley, and Chris Parnin. "What is your biggest pain point? an investigation of cs instructor obstacles, workarounds, and desires." Proceedings of the 54th ACM Technical Symposium on Computer Science Education V. 1. 2023.

    [15] Atzberger, Alexander, and Kristin Paetzold. "Current challenges of agile hardware development: What are still the pain points nowadays?." Proceedings of the design society: international conference on engineering design. Vol. 1. No. 1. Cambridge University Press, 2019.

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