Cursor-based pagination has become the default pagination strategy for many modern APIs, including GraphQL APIs, cloud platforms, and large-scale SaaS applications. While it offers significant performance advantages over traditional offset pagination, it introduces new challenges for navigation, bookmarking, sharing links, and preserving user context. In this article, we compare cursor pagination vs offset pagination, explore why the industry is moving …
FastAPI Alembic Migrations with PostgreSQL, SQLModel, and Docker
When building a FastAPI project with PostgreSQL, you need a reliable way to manage your database schema over time. As your application evolves, simple table creation is not enough. You need a way to safely apply, track, and roll back changes.
Alembic provides a structured, version-controlled approach to database migrations. In this guide, weโll walk through how to set up Alembic with FastAPI, SQLModel, and PostgreSQL, including common issues youโll run into when working with Docker.
Express vs FastAPI: Comparing Node.js and Python API Frameworks
Choosing an API framework depends on both your application’s needs and your development team’s strengths. In this article, we explore Express vs FastAPI by building the same API in both frameworks and examining differences in tooling, ecosystem support, and runtime behavior.
How to Implement a Clean Service Layer in Flutter (With API Examples)
This blog walks through building a clean, modular service layer in Flutter to keep mobile apps scalable, maintainable, and resilient to change. Using real examples with third-party APIs, it demonstrates how to abstract logic, structure code for API calls, and easily swap data sources without major rewrites. Youโll also learn strategies like creating request/response classes and centralizing error handling to reduce redundancy and improve code quality.
How to Optimize API Performance for High-Traffic Applications
When an application struggles to keep up with user demand, slow response times can frustrate users and impact business performance. Without proper optimization, heavy traffic can lead to slow load times, system crashes, and lost opportunities. At Keyhole Software, we specialize in helping businesses optimize API performance for high-traffic applications to ensure their systems remain fast, reliable, and scalable. In …




