Tired of fighting CORS errors in your Go backend? It's a browser security feature, not a bug. The key is understanding the preflight OPTIONS request. Your server needs to respond with the correct Access-Control-Allow-Origin headers. In Gin, this is easily handled with the gin-contrib/cors middleware. I wrote a full practical guide on this, from theory to code. https://dev.to/crow004/demystifying-cors-a-practical-guide-for-go-developers-11fj #golang #webdev #backend #security #cors #godev

Tired of fighting with sqlmock and GORM in your #golang tests? Here's a quick workflow to fix mismatched SQL expectations: 1. Enable GORM's verbose logger in your test. 2. Run the failing test. 3. GORM will print the *exact* SQL it's trying to run. 4. Copy that SQL into your mock. Done. This simple trick saves a ton of time. I wrote a full guide on it. Read more here: https://dev.to/crow004/taming-gorm-sqlmock-our-go-to-workflow-for-perfect-database-mocks-ndm #godev #testing #devtools

A new challenge has arrived in Musical Chairs. :trophy: We've added an on-chain verifiable All-Time Record board to the main page. See the top daily win and the address of the champion. Your chance to get immortalized on the leaderboard is here. Play now. https://muschairs.com #nostr #web3 #gaming #crypto #arbitrum #plebchain

I went from junior dev to Web3 game creator without writing a single line of code. The entire development was handled by AI. This is the story of how one person with an idea and Gemini can launch a decentralized project from scratch. It all started with a simple idea: bring "Musical Chairs" to the blockchain. I almost chose USDT, but then I learned about its centralized "kill-switch". That was a deal-breaker. Full decentralization is non-negotiable. ⛓️ The architecture is simple but robust: - Smart Contract (Solidity): The unbreakable heart of the game. - Backend (Go): The high-performance brain. - Frontend (JS): The lightweight and fast interface. My job was to think like Henry Ford. Gemini was my engineering team on demand. ### Security Fortress Security was my #1 paranoia. The smart contract is built like a fortress: - Upgradable (OpenZeppelin UUPS) - Re-entrancy protection - Timelocks on critical functions - Role separation (owner's cold wallet, backend's hot wallet) 🔐 ### Bulletproof Testing We tested it exhaustively: - 81 unit tests (Hardhat/Foundry) with 100% code coverage - Invariant testing with Echidna (50,000 transactions) - Fuzzing & Static analysis with Slither & Mythril 🛡 ### Quantum-Resistant Backend The backend's private key is guarded by a separate keyservice microservice. Secrets are encrypted with GPG (AES-256)—a quantum-resistant algorithm used by the military. If the service fails, a "Dead Man's Switch" on the backend will safely restart it. ### Join the Community The game is live! To build a community, I launched a Zealy campaign. The first 300 members will get an OG role and a free NFT airdrop. 🎁 Join us early: https://zealy.io/c/musicalchairsclub ### The Full Story I documented every step, every technical decision, and every problem in this article: ➡️ https://dev.to/crow004/-how-i-built-a-fully-decentralized-on-chain-game-with-0-lines-of-code-thanks-to-gemini-1d0p - Play: https://muschairs.com/ - Discord: https://discord.gg/wnnJKjgfZW - GitHub: https://github.com/crow-004/musical-chairs-game #web3 #gamedev #solidity #golang #ai #devto

V3 is all about making the game more accessible and rewarding our community. With stakes at just 0.025 ETH and a powerful referral system, there's never been a better time to play. Check it out now! ➡️ muschairs.com #crypto #gaming #blockchain #ETH

‼️ IMPORTANT! ‼️ You will NOT earn any commission from a player until you have CONFIRMED them in your Referrer Dashboard. Don't leave money on the table! Check your dashboard regularly after sharing your link.

To confirm your referees: Head to muschairs.com Connect your wallet A new "Referrers" link will appear next to your address. Click it, go to your dashboard, and approve your pending requests! (This keeps the main interface clean and gives referrers their own dedicated space!)

"So, how do I get started?" Easy. 1️⃣ Share your referral link. 2️⃣ When a friend joins for the first time, they send a referral request to you on-chain. 3️⃣ You confirm them. Here's the crucial part 👇

Here's how the V3 referral math works: Bring 1 player to a full game? You get the WHOLE 20% referral commission. All 5 players referred by different people? The 20% is split 5 ways, and you each get 4%. More active referees = more consistent earnings. 💸

Want to earn while your friends play? Our new Referral Program is a game-changer. You can now earn up to 20% of the referral commission pool from a single game just by bringing new players to the circle! 💰 #GameFi #referral