An AWS Cloud architecture for web hosting - 3 Tiers

Public Terraform source: https://github.com/nhancv/terraform.aws.public Best practice: https://docs.aws.amazon.com/whitepapers/latest/web-application-hosting-best-practices/an-aws-cloud-architecture-for-web-hosting.html I saw some mistakes of Full-stack developers about web hosting. To deliver better app should check some points: Make sure you optimize the…

SOLANA network programming

Getting started: https://solana.com/news/getting-started-with-solana-developmentDocs: https://docs.solana.comTerminology: https://docs.solana.com/terminologyCoin: SOLWallet: https://docs.solana.com/wallet-guide– App version: https://docs.solana.com/wallet-guide/apps– Web version: https://docs.solana.com/wallet-guide/web-wallets– Extension: https://phantom.app/– CLI: https://docs.solana.com/wallet-guide/cli Solana cluster explorers: http://explorer.solana.com/ http://solanabeach.io/ https://solscan.io/Token program (Token on Solana blockchain): https://spl.solana.com/tokenEnvironment setup…

Verify smart contract request with multi-signature approach

First, create a mintable token ERC20Mintable Create EIP712 multi-signature MultiSigEIP712 Create test scripts_truffle/eip712.js scripts_truffle/eip712ex.js test/MultiSigEIP712.test.js Start test Ganache-cli does not support eth_signTypedData_v4, you need hardhat instead https://hardhat.org/hardhat-network/ # Install hardhat nodenpm…

Host your own PancakeSwap Testnet

https://github.com/nhancv/pancake-swap-testnet#readme Preparing source Clone pancake-swap-core Clone pancake-swap-periphery Clone pancake-swap-interface-v1 Setup Install contract merger: https://www.npmjs.com/package/sol-merger Prepare PancakeFactory and PancakeRouter Deploy PancakeFactory and PancakeRouter Access: https://remix.ethereum.org/#optimize=false&runs=200&evmVersion=null&version=soljson-v0.5.16+commit.9c3226ce.js Deploy WBNB New File: WBNB.sol => Copy source from https://gist.github.com/nhancv/b0b35f16472e4998d0fd17b7a1e4f707 Compiler tab => Select compiler: v0.8.3+commit.8d00100c Deploy tab…