Create a simple counter app with Phoenix LiveView: set up project, create LiveView, add route & CSS, run server at http://localhost:4000.

Use verb-noun format (e.g., view_users) & follow CRUD conventions to simplify permission naming. Group permissions by modules & store them as strings in the database for easy assignment & query efficiency.

When working with Git, use `git status` to check unstaged changes, `git diff --cached` for staged but uncommitted changes & `git log --branches --not --remotes` for unpushed commits.

Master web dev with HTML, CSS, JavaScript & Git. Choose frontend (React, Vue, Angular) or backend (Node.js/Express.js, Python/Django, PHP/Laravel). Learn with video tutorials (Intellipaat, FreeCodeCamp, Simplilearn) or written guides (W3Schools).

Manage multiple client projects with a shared Laravel admin panel using Git submodules, allowing for centralized updates and individual client customizations.

Multitenancy enables multiple users/organizations to share same app with logical data separation, commonly used in SaaS, cloud computing & enterprise apps for efficiency & cost savings.

Undo submodule addition: `git submodule deinit -f`, `git rm -f`, then re-add with correct URL & commit changes.

Generate an SSH key by running `ssh-keygen -t ed25519 -C "your-email@example.com"` and add it to GitHub. Configure your Git client to use SSH with `git remote set-url origin git@github.com:your-username/repository-name.git`.

ETL process explained: Extract data from multiple sources, Transform into consistent format, Load into centralized system for analysis & reporting. Essential for data-driven decision-making in businesses like retail.

Separate tasks in database or code wisely: databases for data ops & complex queries, code for business logic, integration & UI. This separation boosts performance, maintainability & scalability.

Learn NodeJs in 5 phases: JavaScript Basics, Core NodeJS Concepts, Advanced NodeJS Concepts, Real-time Applications, and Security Practices. Master key concepts like async programming, file systems, events, buffers, streams, HTTP servers, and more.

When migrating from MySQL to PostgreSQL, understand data type differences, case sensitivity, and unique features like TIMESTAMPTZ for time zones and GIN indexes for efficient searches.

Crack your next Node Js Interview with our comprehensive list of 50+ interview questions! Topics include Node.js fundamentals, API functions, concurrency, event loops, and more. Prepare now and ace that interview!

Learn High-Level Design (HLD) with this complete roadmap: System Design Basics, Scalability & Reliability, Data Partitioning & Sharding, Database Selection, Caching Strategies, Messaging & Queueing Systems, Distributed System Patterns, and more!

Effective API design requires standardized response formats, pagination, clear status codes & descriptive error messages to ensure consistency, scalability & a seamless experience for users.

Revert a merged PR on GitHub: Click "Revert" button on PR page, review & merge new PR to undo changes. Alternatively, use `git revert` locally with commit hash & push changes.

Choose vertical scaling for small apps with low traffic & immediate perf boosts. But for scalable & fault-tolerant solutions, go horizontal & add more servers to distribute the workload.

Document API endpoints with high-level overview, HTTP method & URL, request/response details, error handling, usage examples & additional notes for clarity & usability.

Language-agnostic API design focuses on universal principles & best practices, ensuring APIs are easy to use, adhere to standards, promote consistency & interoperability, regardless of the programming language used.

Decide between coupling API & app in 1 codebase for simplicity or hosting separately for scalability & flexibility. Choose wisely based on project needs & resources.

Integrate with KCB's Buni API Gateway for Instant Payment Notifications (IPN) via HTTPS, using synchronous POST requests in JSON format, and validate notifications with a shared signature for secure real-time transaction updates.

API Guide for M-PESA Payment Processing: Request & Response formats, error codes & callback result descriptions. Unique IDs, status codes & metadata ensure secure transactions.

Expose local dev server to internet with alternatives to LocalTunnel: Ngrok, Cloudflare Tunnel, Serveo, Expose, Inlets & Pagekite. Choose based on ease of use, security or budget!

Node.js events are key to its non-blocking, asynchronous nature. Built on EventEmitter, they follow Event-Driven Programming model using `on`, `emit`, `once` & `removeListener` methods for scalable, flexible & async execution.

Mount() in Livewire: Initialize properties, fetch data & inject dependencies before component renders. Essential for managing state & data in reactive applications.

Master Node.js, Express.js & backend dev in 8 weeks: 120-160 hours of learning, building a full-stack app, and deploying to Heroku/AWS. Follow this structured plan for a solid foundation and job readiness.

Replace existing callbacks with a more robust stkCallback function, handling errors and updating payment status accordingly.

Transitioning from Laravel Blade to Livewire: Simplify reactive UIs with component-based architecture & data binding

Develop e-commerce website with user-friendly design, product management & secure payment integration within 10 weeks. Estimated budget: 345,000 KES.

Deploying a Django REST API to Render is an excellent way to host your application in the cloud. Follow this guide to deploy your Django REST API to Render for free, covering prerequisites, connecting your PostgreSQL database, and more.

JSON columns in SQL databases offer flexibility for dynamic & complex data structures, reducing schema changes & improving performance in scenarios like storing user preferences, logs, API responses & configurations.

Host Laravel on shared hosting by moving index.php & .htaccess to subdirectory root, updating file paths and forcing HTTPS for clean URLs.

M-Pesa Transaction Status API provides real-time transaction updates for businesses and developers.

Integrate Safaricom's Dynamic QR Code API to generate QR codes for M-PESA transactions. Use Postman to send requests & receive base64-encoded QR code images.

Test webhooks & callbacks with 6 free tools: Webhook.site, Beeceptor, RequestBin, Mocky, Pipedream & Postman Mock Server. Choose the best tool for your testing needs.