Tech Articles

cover of post: Type-safe Database Operations in Go with go generate and sqlc

Type-safe Database Operations in Go with go generate and sqlc

Sep 15, 2025

Discover how to leverage go generate and sqlc to generate type-safe Go code from SQL, streamlining database interactions and reducing common errors.

By James Reed#Engineering
cover of post: Building Custom Middleware in FastAPI to Elevate API Control

Building Custom Middleware in FastAPI to Elevate API Control

Sep 15, 2025

Explore how to create custom middleware in FastAPI and Starlette to manage requests and responses, enhancing API functionality and control.

By Wenhao Wang#Engineering
cover of post: Enforcing Team Coding Standards with Custom Go Linters

Enforcing Team Coding Standards with Custom Go Linters

Sep 14, 2025

This article delves into the creation of custom Go linters to maintain consistent coding styles and best practices within a development team, offering practical examples and a clear explanation of the underlying principles.

By Wenhao Wang#Engineering
cover of post: Building Robust Applications with Hexagonal Architecture in NestJS and ASP.NET Core

Building Robust Applications with Hexagonal Architecture in NestJS and ASP.NET Core

Sep 14, 2025

Explore the principles of Hexagonal Architecture, also known as Ports and Adapters, and learn how to implement it effectively in both NestJS and ASP.NET Core for improved maintainability, testability, and flexibility in backend development.

By Lukas Schneider#Engineering
cover of post: Advanced GORM Techniques Hooks Transactions and Raw SQL

Advanced GORM Techniques Hooks Transactions and Raw SQL

Sep 14, 2025

Explore GORM's powerful advanced features – hooks, transactions, and raw SQL – to build robust and efficient backend applications.

By Emily Parker#Engineering
cover of post: Empowering Flask and FastAPI with Custom Decorators for Access Control and Logging

Empowering Flask and FastAPI with Custom Decorators for Access Control and Logging

Sep 14, 2025

Explore how to leverage custom decorators in Flask and FastAPI to implement robust permission checks and comprehensive request logging, enhancing application security and maintainability.

By Grace Collins#Engineering
cover of post: Don't Wait for PythonAnywhere. Here's How to Deploy FastAPI Project Online

Don't Wait for PythonAnywhere. Here's How to Deploy FastAPI Project Online

Sep 14, 2025

FastAPI is popular, but deploying it is tricky. PythonAnywhere doesn't work, and VPS is costly for small projects. Leapcell offers an easier, pay-per-use solution.

By Emily Parker#Engineering
cover of post: Decoupling Business Logic and Data Access in Python Web Applications with the Repository Pattern

Decoupling Business Logic and Data Access in Python Web Applications with the Repository Pattern

Sep 14, 2025

This article explores the Repository pattern as a strategy to enhance the maintainability and testability of Python web applications by cleanly separating business logic from underlying data persistence mechanisms.

By Min-jun Kim#Engineering
cover of post: Building Modular Web APIs with Axum in Rust

Building Modular Web APIs with Axum in Rust

Sep 14, 2025

This article explores how to build maintainable and scalable web APIs using Ax Axum, focusing on routing, state management, and leveraging Tower services for modularity and efficiency.

By Daniel Hayes#Engineering
cover of post: Asynchronous Views and WebSocket Integration in Flask 2.x

Asynchronous Views and WebSocket Integration in Flask 2.x

Sep 14, 2025

Explore the power of Flask 2.x with async/await for improved concurrency and real-time communication through WebSockets, backed by practical code examples.

By Olivia Novak#Engineering
cover of post: Unveiling Go's Scheduler Secrets The G-M-P Model in Action

Unveiling Go's Scheduler Secrets The G-M-P Model in Action

Sep 13, 2025

This article delves into the inner workings of the Go scheduler, exploring the fundamental G-M-P model and how it orchestrates efficient goroutine execution for concurrent applications.

By Wenhao Wang#Engineering
cover of post: Backend Services in a Service Mesh Era

Backend Services in a Service Mesh Era

Sep 13, 2025

Exploring how backend services integrate with and benefit from Istio and Linkerd, detailing their mechanisms, practical implementations, and real-world advantages.

By Lukas Schneider#Engineering
cover of post: Streamlining Configuration Across Environments in Django and Flask

Streamlining Configuration Across Environments in Django and Flask

Sep 13, 2025

This article delves into effective strategies for managing distinct configurations in Django and Flask applications across development, testing, and production environments, emphasizing best practices and practical code examples.

By Emily Parker#Engineering
cover of post: Unlocking Node.js Performance Through Smarter V8 JIT Interactions

Unlocking Node.js Performance Through Smarter V8 JIT Interactions

Sep 13, 2025

Explores how Node.js developers can leverage a deeper understanding of V8's JIT compiler to write more performant JavaScript, focusing on practical techniques and code examples.

By Grace Collins#Engineering
cover of post: Mastering Pytest Fixtures Advanced Scope Parameterization and Dependency Management

Mastering Pytest Fixtures Advanced Scope Parameterization and Dependency Management

Sep 13, 2025

Explore advanced pytest fixtures, covering scope for resource optimization, parameterization for varied test cases, and dependency injection for robust test architectures.

By Lukas Schneider#Engineering
cover of post: Asynchronous Web Services in Rust A Deep Dive into Future, Tokio, and async/await

Asynchronous Web Services in Rust A Deep Dive into Future, Tokio, and async/await

Sep 13, 2025

This article explores the core components of asynchronous web development in Rust -- Future, Tokio runtime, and the async/await syntax -- demonstrating their principles, implementation, and practical application with code examples.

By Takashi Yamamoto#Engineering
cover of post: Supercharging Django Development with FastAPI-Inspired APIs

Supercharging Django Development with FastAPI-Inspired APIs

Sep 13, 2025

Explore how Django Ninja brings the intuitive and high-performance API development experience of FastAPI directly into your Django projects, enhancing both developer productivity and application efficiency.

By Emily Parker#Engineering
cover of post: Building Dual-Purpose APIs with Go Protobuf and gRPC-Gateway

Building Dual-Purpose APIs with Go Protobuf and gRPC-Gateway

Sep 12, 2025

Explore how Go, Protobuf, and gRPC-Gateway enable developers to construct robust and user-friendly APIs that cater to both internal microservices and external web clients, streamlining development and enhancing interoperability.

By James Reed#Engineering
cover of post: Best Way to Run Puppeteer Online: Solutions Compared

Best Way to Run Puppeteer Online: Solutions Compared

Sep 12, 2025

This article compares deploying Puppeteer on serverless platforms Leapcell, AWS Lambda, and Cloudflare. It analyzes their pros and cons, recommending Leapcell as an excellent choice for online projects.

By Takashi Yamamoto#Engineering
cover of post: Fusing Modern RPC with Traditional Web Frameworks

Fusing Modern RPC with Traditional Web Frameworks

Sep 12, 2025

Exploring strategies for integrating gRPC services with established RESTful API frameworks like Django and FastAPI to leverage the strengths of both.

By Min-jun Kim#Engineering
cover of post: Supercharging Your API Testing with Pytest for FastAPI and Flask

Supercharging Your API Testing with Pytest for FastAPI and Flask

Sep 12, 2025

Learn how to write efficient unit tests for your FastAPI and Flask applications using Pytest, covering core concepts, practical examples, and best practices.

By Lukas Schneider#Engineering
cover of post: Navigating Compressed TypeScript in Production with Source Maps

Navigating Compressed TypeScript in Production with Source Maps

Sep 12, 2025

This article delves into the intricacies of Source Maps, explaining their mechanism and demonstrating how they enable effective debugging of minified TypeScript code in production environments, ensuring a smoother development and maintenance workflow.

By Daniel Hayes#Engineering
cover of post: Pydantic BaseSettings vs. Dynaconf A Modern Guide to Application Configuration

Pydantic BaseSettings vs. Dynaconf A Modern Guide to Application Configuration

Sep 12, 2025

This article explores Pydantic BaseSettings and Dynaconf as modern Python solutions for managing application configurations, highlighting their unique strengths and best use cases for robust and maintainable projects.

By Emily Parker#Engineering
cover of post: Diesel vs SeaORM Navigating Compile-Time vs Dynamic ORMs in Rust

Diesel vs SeaORM Navigating Compile-Time vs Dynamic ORMs in Rust

Sep 12, 2025

A comprehensive comparison of Diesel and SeaORM, two popular Rust ORMs, highlighting their compile-time versus dynamic approaches to help developers choose the right tool for their projects.

By Min-jun Kim#Engineering
cover of post: Empowering Web Applications with PWA and Offline Capabilities in Next.js and Nuxt.js

Empowering Web Applications with PWA and Offline Capabilities in Next.js and Nuxt.js

Sep 12, 2025

A comprehensive guide to integrating Progressive Web App features and robust offline support into your Next.js or Nuxt.js projects, enhancing user experience and application reliability.

By Min-jun Kim#Engineering
cover of post: Building Dynamic and Extensible Applications with Go Plugins

Building Dynamic and Extensible Applications with Go Plugins

Sep 11, 2025

Explore how Go 1.8's plugin package enables developers to create modular and extensible applications by dynamically loading external code, enhancing flexibility and maintainability.

By Daniel Hayes#Engineering
cover of post: Implementing Robust Deep Health Checks in Backend Frameworks for Container Orchestration

Implementing Robust Deep Health Checks in Backend Frameworks for Container Orchestration

Sep 11, 2025

This article delves into the critical importance and practical implementation of deep health checks in backend applications, specifically for container orchestration systems, showing how to build resilient and reliable microservices.

By Takashi Yamamoto#Engineering
cover of post: A Small Tool to Understand How Spam Filtering Works

A Small Tool to Understand How Spam Filtering Works

Sep 11, 2025

This article guides you on building and deploying a spam-checking tool using Apache SpamAssassin and a Python API, allowing you to test spam emails.

By Ethan Miller#Engineering
cover of post: Embracing Asynchronous Power in Django 4.x for Scalable Backends

Embracing Asynchronous Power in Django 4.x for Scalable Backends

Sep 11, 2025

Unlocking the full potential of asynchronous views and ORM support in Django 4.x to build highly performant and scalable web applications.

By Min-jun Kim#Engineering
cover of post: Streamlining Asynchronous Backend Operations with Modern JavaScript TC39 Proposals

Streamlining Asynchronous Backend Operations with Modern JavaScript TC39 Proposals

Sep 11, 2025

Explore how recent TC39 proposals like Promise.withResolvers simplify asynchronous JavaScript code in backend environments, enhancing readability and maintainability.

By James Reed#Engineering
cover of post: Go Routines and Channels Modern Concurrency Patterns

Go Routines and Channels Modern Concurrency Patterns

Sep 11, 2025

This article delves into Go's powerful concurrency primitives, Goroutines and Channels, guiding you from basic concepts to advanced patterns like Fan-in, Fan-out, and Worker Pools, with practical code examples.

By Min-jun Kim#Engineering
cover of post: Building Modern GraphQL APIs with Strawberry on FastAPI and Django

Building Modern GraphQL APIs with Strawberry on FastAPI and Django

Sep 11, 2025

Explore how Strawberry, a code-first GraphQL library, empowers developers to construct efficient and maintainable GraphQL APIs within popular Python frameworks like FastAPI and Django, enhancing data fetching and API management.

By Emily Parker#Engineering
cover of post: Seamless Server-Side Templating in Rust Web Applications with Askama and Tera

Seamless Server-Side Templating in Rust Web Applications with Askama and Tera

Sep 11, 2025

This article explores how to integrate Askama and Tera for efficient server-side template rendering in Rust web applications, detailing their features, usage, and practical benefits.

By Lukas Schneider#Engineering
cover of post: Mastering Complex Component State with XState in React and Vue

Mastering Complex Component State with XState in React and Vue

Sep 11, 2025

This article delves into the use of XState to effectively manage intricate state logic within React and Vue applications, offering a structured approach to building robust and maintainable UI components.

By Takashi Yamamoto#Engineering
cover of post: Practical Design Patterns in Go Mastering Option Types and the Builder Pattern

Practical Design Patterns in Go Mastering Option Types and the Builder Pattern

Sep 10, 2025

Explore how Go developers leverage design patterns like Option types and the Builder pattern to write more resilient, readable, and maintainable code, addressing common engineering challenges.

By Grace Collins#Engineering
cover of post: Building Resilient Backends Across Geographies

Building Resilient Backends Across Geographies

Sep 10, 2025

Exploring the principles and practices for designing multi-region backend applications, focusing on configuration, data replication, and latency management.

By Grace Collins#Engineering
cover of post: Streamlining API Management with Gin Route Groups and Versioning

Streamlining API Management with Gin Route Groups and Versioning

Sep 10, 2025

This article delves into the practical application of Gin's route grouping and versioning features, demonstrating how they enhance API organization, maintainability, and evolution for modern backend systems.

By Takashi Yamamoto#Engineering
cover of post: Empowering Modern Web with Node.js HTTP/2 and HTTP/3

Empowering Modern Web with Node.js HTTP/2 and HTTP/3

Sep 10, 2025

Exploring Node.js's native capabilities for HTTP/2 and HTTP/3 (QUIC), their underlying principles, and practical application scenarios for building high-performance web services.

By Wenhao Wang#Engineering
cover of post: Unleash the Full Power of Your GitHub Readme Stats

Unleash the Full Power of Your GitHub Readme Stats

Sep 10, 2025

This article provides a step-by-step guide on how to self-host the "GitHub Readme Stats" project on Leapcell. This allows you to overcome the limitations of the public version, such as rate limiting and the inability to access private repository data.

By Takashi Yamamoto#Engineering
cover of post: Go Web Servers - Native net/http vs. Gin Framework

Go Web Servers - Native net/http vs. Gin Framework

Sep 10, 2025

Exploring the core differences, advantages, and use cases when building web applications in Go using the standard net/http library compared to the popular Gin framework.

By Lukas Schneider#Engineering
cover of post: Deploying High-Availability Python Web Services with Docker and WSGI Servers

Deploying High-Availability Python Web Services with Docker and WSGI Servers

Sep 10, 2025

This article explores the deployment of high-availability Python web services using Docker, uWSGI/Gunicorn, and Nginx. It covers core concepts, practical implementation with code examples, and best practices for creating scalable and resilient applications.

By Olivia Novak#Engineering
cover of post: Elegant Error Handling and Unified Responses in Rust Web APIs

Elegant Error Handling and Unified Responses in Rust Web APIs

Sep 10, 2025

This article delves into designing robust error handling and consistent response formats for Rust web APIs, ensuring better developer experience and client interaction.

By Olivia Novak#Engineering
cover of post: Type-Safe Routing in Nuxt 3 A New Era of Developer Experience

Type-Safe Routing in Nuxt 3 A New Era of Developer Experience

Sep 10, 2025

Discover how Nuxt 3's type-safe routing eliminates string-based path management, leading to more robust, maintainable, and enjoyable development.

By Grace Collins#Engineering
cover of post: Understanding Go Struct Alignment and Its Performance Implications

Understanding Go Struct Alignment and Its Performance Implications

Sep 09, 2025

This article delves into the intricacies of Go's struct memory alignment, explaining its principles, how it impacts memory usage and CPU performance, and providing practical code examples to illustrate these concepts for Go developers.

By Takashi Yamamoto#Engineering
cover of post: PASETO and JWT A New Era of Stateless Token Authentication

PASETO and JWT A New Era of Stateless Token Authentication

Sep 09, 2025

Exploring PASETO and JWT as modern stateless token authentication solutions for backend systems, comparing their principles, implementations, and real-world applications.

By Daniel Hayes#Engineering
cover of post: Managing Background Tasks and Long-Running Operations in FastAPI

Managing Background Tasks and Long-Running Operations in FastAPI

Sep 09, 2025

This article delves into how FastAPI's BackgroundTasks and external asynchronous task queues like Celery or RQ can be leveraged to efficiently handle tasks that don't need immediate user feedback, improving application responsiveness and scalability.

By Grace Collins#Engineering
cover of post: Contextual Clarity Building a Request-Scoped Data Flow with EventEmitter and AsyncLocalStorage

Contextual Clarity Building a Request-Scoped Data Flow with EventEmitter and AsyncLocalStorage

Sep 09, 2025

Exploring how Node.js EventEmitter and AsyncLocalStorage can be elegantly combined to manage and pass request-specific context throughout complex application lifecycles.

By Ethan Miller#Engineering
cover of post: Mastering Go Context for Robust Concurrency Patterns

Mastering Go Context for Robust Concurrency Patterns

Sep 09, 2025

This article delves into the Go `context` package, explaining how it enables effective cancellation, timeout management, and value propagation in concurrent Go applications, illustrated with practical code examples.

By Emily Parker#Engineering