DIYA

Java Backend developer roadmap 2026💯

Source:

🚀 Introducing Khmer Lunar – Chhankitek (Pure Dart Package)

I’m excited to officially release version 1.0.0 of khmer_lunar_chhankitek — a pure Dart package for accurate Khmer lunar calendar calculations.

Built for Flutter, CLI, and server-side Dart, this package provides:

🇰🇭 Full Khmer lunar engine (day, month, year APIs)
🗓 Khmer formatted lunar date (Chhankitek style)
🙏 Buddhist observance helpers (ថ្ងៃសីល / ថ្ងៃកោរ detection)
🎉 Khmer New Year calculation
🔢 Khmer digit & Gregorian formatting utilities
⚡ Fully offline (no API required)
🧩 Supported range: 1900 – 2100

Date: 2026-1-3
Example output:
ថ្ងៃសៅរ៍ ១៥កើត ពេញបូណ៌មី ខែបុស្ស ឆ្នាំម្សាញ់ សប្ដស័ក ព.ស.២៥៦៩

📦 Available now on pub.dev:

https://pub.dev/packages/khmer_lunar_chhankitek

I truly hope to receive feedback from the Flutter Community Cambodia 🇰🇭
Your suggestions and ideas will help improve and evolve this package further.

Let’s build more Khmer-focused open-source tools together 🙌

🚀 Udemy Downloader – What’s New in v3.3

We’ve just released Version 3.3 with major improvements and new features to make your experience smoother and more powerful!

✨ What’s New:
🔹 Migrated extension to Manifest V3 (improved performance & future-ready architecture)
🔹 Redesigned Popup UI with better layout and navigation tabs
🔹 Added Fullscreen launch mode for a better working experience
🔹 New Stop Download button to cancel active or bulk downloads instantly
🔹 Restored Live Download Percentage display
🔹 Improved Pagination system
🔹 Enhanced overall color consistency & UI polish
🔹 Added ZIP-based install guide for users without Git

Source File : https://t.me/diyasoftware/476

🎯 This update focuses on better usability, control, and a cleaner interface.

Update now and enjoy the new experience!

🚀 Dart & Flutter Tip: Password Validation Best Practice

When building Flutter forms, I often see this question:
👉 Should I use switch or if for validation?
Answer:
Use if (or rule-based validation) — not switch.

❌ Why switch is not ideal
Designed for enums & fixed states
Harder to read with multiple conditions
Rarely used for validation in real Flutter projects

🧠 Pro tip
For growing apps, use a rule-based validator to keep your code clean, scalable, and maintainable.

📱 Flutter usage

TextFormField(
validator: (v) => validatePassword(v ?? ''),
)

Clean code → Better UX → Easier maintenance
Happy coding 🚀

Read More : https://emdiya.medium.com/dart-flutter-password-validation-if-switch-or-better-c0290873410d
Join Flutter Community Cambodia : https://www.linkedin.com/groups/14584435/
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Install Flutter on macOS the Easy Way: A Practical Guide for Busy Developers

Just published a guide to getting Flutter running on macOS.
In a few terminal commands, you’ll install Homebrew, set up the Flutter SDK, fix PATH issues, and run flutter doctor so your machine is ready for iOS and Android builds. If you want a clean Flutter setup that just works, this walkthrough is for you.

Read Me : https://emdiya.medium.com/install-flutter-on-macos-the-easy-way-a-practical-guide-for-busy-developers-8556ff2ce346

What is HashId? Why Should Developers Use HashId to Secure APIs?

🛑 STOP Exposing Real IDs in Your URLs! 🛑

When developing web applications and APIs, using simple integers in your URLs (like /users/10 or /products/25) poses immediate, serious risks:

Users can easily guess other IDs.

Your API is vulnerable to enumeration attacks (ID guessing attacks).

Your brand looks unprofessional.

This is where HashId becomes the essential "savior" for developers!

🔑 What is HashId?
HashId is an algorithm that encodes those sequential, guessable integers into short, random, unguessable strings. It completely eliminates the ability for attackers—or curious users—to simply iterate through records.

🛡️ Why HashId Secures Your APIs:
By implementing HashId, you immediately mitigate:

Insecure Direct Object Reference (IDOR) Attacks: Prevents unauthorized data access.

Data Enumeration: Stops hackers from bulk harvesting your data.

Unprofessional URLs: Replaces raw numbers with polished, secure strings.

Ready to secure your endpoints and upgrade your API's aesthetic? Start using HashId today!

Read More: https://dev.to/stevebang-dotnet/what-is-hashid-why-should-developers-use-hashid-to-secure-apis-5f3n

🚀 Flutter vs Old Mobile Development 🚀
Mobile development is evolving — and Flutter is leading the way! 🎉✨

🔴 Old Mobile Development: The Struggle Was Real
❌ Separate codebases for iOS & Android 📱📱
❌ Double the development cost 💸💸
❌ Slow updates & long timelines 🐌⏳
❌ Inconsistent UI/UX between platforms 😕❌
❌ Hard to maintain as products grow 📈🛠️

🟢 Flutter Development: The Future Is Here!
✔ One codebase → iOS + Android 🎯
✔ Faster development = Faster launch 🚀⚡
✔ Pixel-perfect UI across all devices 🎨📲
✔ Smooth performance with a native feel 🌟💨
✔ Cost-efficient for startups & enterprises 💡💰
✔ Scalable & reliable for apps worldwide 🌍🔥
Flutter helps companies build apps better, faster, and smarter—without compromising quality.

🚀 AWS S3 File Downloader with Node.js!
Want to download files from AWS S3 programmatically? I created a complete Express API that makes it super easy.

✅ Download single or multiple files
✅ Stream directly to browser
✅ Calculate folder sizes
✅ Full error handling
✅ Production-ready code

Perfect for developers building document management systems or working with cloud storage.

🔗 Full tutorial on Medium: https://emdiya.medium.com/how-to-download-files-from-aws-s3-using-node-js-and-express-a-complete-guide-b97086c1fbc0
💻 Complete code & guide included!

Flutter Cross-Platform Fix: Solving the dart:html Error the Right Way

Read More: https://imsnehalsingh.medium.com/flutter-cross-platform-fix-solving-the-dart-html-error-the-right-way-a9d7b18a1967

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