Tech Articles
Build a Short Link Service Using Nest.js
This guide provides a step-by-step tutorial on building a complete URL shortener service with Nest.js and PostgreSQL, covering everything from project setup and core logic to final deployment.
Fortifying Gin APIs with JWT Authentication
This article delves into the implementation of JWT authentication middleware for Gin APIs, enhancing security and controlling access. It covers core concepts, practical code examples, and best practices.
10 Minutes from First Line of Code to Live Deployment: A Super Fast Nest.js Blog Course
This tutorial provides a quick, step-by-step guide to building a full-stack blog application using Nest.js, PostgreSQL, and EJS, covering everything from project setup to final online deployment.
Streamlining API Development with Django REST Framework's Core Components
This article delves into how Django REST Framework’s Serializers, ViewSets, and Routers collaboratively simplify the construction and management of robust RESTful APIs, providing practical examples for each component.
Advanced GORM Techniques Hooks Transactions and Raw SQL
Explore GORM's powerful advanced features – hooks, transactions, and raw SQL – to build robust and efficient backend applications.
Don't Wait for PythonAnywhere. Here's How to Deploy FastAPI Project Online
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.
Streamlining Configuration Across Environments in Django and Flask
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.
Best Way to Run Puppeteer Online: Solutions Compared
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.
Supercharging Your API Testing with Pytest for FastAPI and Flask
Learn how to write efficient unit tests for your FastAPI and Flask applications using Pytest, covering core concepts, practical examples, and best practices.
A Small Tool to Understand How Spam Filtering Works
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.
Embracing Asynchronous Power in Django 4.x for Scalable Backends
Unlocking the full potential of asynchronous views and ORM support in Django 4.x to build highly performant and scalable web applications.
Go Routines and Channels Modern Concurrency Patterns
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.
Streamlining API Management with Gin Route Groups and Versioning
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.
Unleash the Full Power of Your GitHub Readme Stats
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.
Go Web Servers - Native net/http vs. Gin Framework
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.
Managing Background Tasks and Long-Running Operations in FastAPI
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.
Mastering Go Context for Robust Concurrency Patterns
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.
How to Host Golang Fiber Projects for Free
How to Host Go web server, like Fiber, for totally FREE
How to Host Golang Echo Projects for Free
How to Host Go web server, like Echo, for totally FREE
Best Vercel Alternative to Host Next.js Projects
Tired of Vercel's high costs and vendor lock-in? This article introduces Leapcell as a better Next.js hosting alternative, offering one-click deployment, a free CDN, and built-in analytics.
What UV & PV Tell Us
This article defines key website metrics PV (Page View) and UV (Unique Visitor), explaining how their analysis reveals user behavior and site health, while warning that raw data can be misleading.
Building Robust Applications with Flask-SQLAlchemy Models, Relationships, and Transaction Management
Explore the power of Flask-SQLAlchemy for defining data models, managing complex relationships, and ensuring data integrity through effective transaction handling in your web applications.
Building Robust Database-Driven Applications with Go, GORM, and Postgres
This article delves into the practical aspects of combining Go's performance, GORM's ORM capabilities, and PostgreSQL's reliability to create scalable and maintainable database-driven applications.
How to Use a Third-Party CDN to Reduce Next.js Hosting Costs on Vercel
Avoid high Vercel bandwidth costs on your Next.js project. Learn to configure a third-party CDN for static assets and images to slash your monthly hosting bill.
What's the Real Cost of Hosting an E-Commerce Website on Vercel, AWS and More?
Vercel's free plan prohibits commercial use, and its Pro plan has high bandwidth costs. This article exposes the hidden fees for e-commerce sites and explores more affordable alternatives.
Optimizing Django Database Queries for Peak Performance
This article delves into how `select_related`, `prefetch_related`, and lazy querying within Django ORM can significantly boost backend application performance by minimizing database interactions.
Profiling Go Applications with pprof for Performance Optimization
This article delves into how to use Go's `pprof` tool to identify and fix performance bottlenecks in Go applications, covering CPU, memory, and blocking profiles with practical examples.
Unleashing Reflection in Go: Dynamic Method Invocation and Value Manipulation
This article delves into Go's powerful `reflect` package, explaining how to dynamically call methods, access, and modify values at runtime. It covers the core concepts, practical use cases with code examples, and important considerations for leveraging reflection effectively.
Introspection in Go - Unveiling Type and Value with Reflection
This article delves into Go's powerful reflection capabilities, explaining how to retrieve type and value information from variables at runtime. It covers the core `reflect` package, practical use cases, and important considerations for leveraging reflection effectively.
Unveiling Go's Reflection: Deconstructing TypeOf and ValueOf
Dive deep into Go's reflect package, understanding the fundamental roles of TypeOf and ValueOf in dynamically inspecting and manipulating Go types and values at runtime, supplemented with practical code examples.
Robust Go: Best Practices for Error Handling
This article delves into the best practices for error handling in Go, covering the built-in error interface, custom error types, context-aware errors, and the importance of structured logging, providing practical code examples.
The Double-Edged Sword: When Error Wrapping Conceals More Than It Reveals
Exploring the nuances and potential pitfalls of Go's error wrapping mechanism, particularly when mishandled, leading to unexpected complexities and debugging challenges. While powerful, improper wrapping can obscure root causes and complicate error handling strategies.
Crafting Custom Error Types in Go for Robust Error Handling
This article delves into the best practices for creating and utilizing custom error types in Go, enhancing error handling with more context and type-safety. It covers fundamental concepts, practical implementation, and advanced patterns for building resilient applications.
The Subtle Art of Error Creation: Understanding errors.New and fmt.Errorf in Go
This article delves into Go's error handling mechanisms, specifically comparing and contrasting `errors.New` and `fmt.Errorf`. We explore their distinct use cases, the benefits of wrapping errors with `%w`, and best practices for creating meaningful and debuggable error messages.
The Silent Contract - Deconstructing Go's Error Interface Design
Go's error interface, deceptively simple, hides a profound design philosophy rooted in explicit handling, composability, and the "fail fast" principle. This article explores its architecture, common patterns, and demonstrates how its design choices foster robust and maintainable software.
Unearthing Concurrency Bugs: A Deep Dive into Go's Data Race Detector
This article explores Go's powerful built-in data race detector, 'go run -race', demonstrating its efficacy in identifying and preventing insidious concurrency bugs. It provides practical examples and best practices for leveraging this essential tool in modern Go development.
Unveiling the Power of Go's Context Package: Concurrency Control and Request Metadata Propagation
Dive deep into Go's `context` package, a crucial tool for managing goroutine lifecycles and propagating request-scoped data. This article explores its core functionalities, practical use cases, and best practices.
Unlocking Efficiency: Demystifying Go's `sync.Pool` for Ephemeral Objects
Dive deep into Go's `sync.Pool`, a powerful yet often misunderstood tool for optimizing performance through the reuse of frequently created, short-lived objects. This article explains its mechanics, ideal use cases, potential pitfalls, and provides practical code examples.
Unraveling the Go sync Package: A Deep Dive into Cond for Concurrent Coordination
This article provides an in-depth exploration of Go's `sync.Cond` type, explaining its role in concurrent programming. It covers the fundamentals of condition variables, their interaction with mutexes, and demonstrates practical use cases with detailed code examples for producers, consumers, and ordered execution.
Unveiling the Power of `sync.Once`: Ensuring Single Execution in Go
This article delves into the `sync.Once` type in Go's `sync` package, explaining its mechanism for guaranteeing a piece of code executes only once, regardless of concurrent access. Through practical examples, we demonstrate its utility in scenarios like single-time initialization of resources.
Concurrency Control in Go: Mastering Mutex and RWMutex for Critical Sections
This article dives deep into Go's `sync` package, focusing on `sync.Mutex` and `sync.RWMutex`. It explains their fundamental principles for protecting critical sections, illustrates their usage with practical code examples, and provides guidance on when to choose one over the other for robust concurrent programming.
The sync Package Unveiled - WaitGroup: Orchestrating Concurrent Goroutine Completion
This article delves into Go's `sync.WaitGroup`, explaining its mechanism for coordinating the completion of multiple goroutines. It illustrates its use with practical examples, demonstrating how to prevent race conditions and ensure all concurrent tasks are finished before proceeding, highlighting its importance in robust concurrent programming.
Go Concurrency Patterns - A Deep Dive into Producer-Consumer, Fan-out/Fan-in, and Pipelines
Explore fundamental Go concurrency patterns like Producer-Consumer, Fan-out/Fan-in, and Pipelines, understanding how they leverage goroutines and channels for efficient and scalable concurrent programming. This article provides practical examples and best practices for building robust concurrent applications in Go.
Understanding Atomic Operations in Go with sync/atomic
A comprehensive guide to leveraging Go's sync/atomic package for thread-safe concurrent programming, detailing its mechanisms, common use cases, and practical examples.
Mastering Concurrency: Understanding Go's `select` for Multiplexing and Timeout Handling
This article delves into Go's `select` statement, exploring its role in concurrent programming. It dissects how `select` acts as a powerful multiplexer for Go channels, enabling graceful handling of multiple communication streams. Furthermore, it details effective strategies for incorporating timeouts, preventing deadlocks, and building robust, non-blocking concurrent applications with practical code examples.
Unbuffered vs. Buffered Channels in Go: Understanding the Differences and Use Cases
This article delves into the fundamental differences between unbuffered and buffered channels in Go, explaining their underlying mechanics, and illustrating their various use cases with practical code examples. It aims to clarify when and why to choose one over the other for effective concurrent programming.
Channel: The Communication Pipeline Between Goroutines in Go
Delve into Go's channels, their role in concurrent programming using goroutines, and how they provide a safe and idiomatic way for goroutines to communicate and synchronize.
Unleashing Concurrency: A Deep Dive into Go Goroutines
This article provides a comprehensive exploration of Go goroutines, explaining their nature as lightweight threads, how to create and manage them, and their pivotal role in building highly concurrent and scalable Go applications. It covers essential topics like the `go` keyword, `sync.WaitGroup`, and channels, illustrated with practical code examples.