Coinbase Base network vs Arbitrum
About Base Base is a secure, low-cost, builder-friendly Ethereum L2 built to bring the next billion users onchain. It is built on the OP Stack so that it can remain…
Category: Tech
Custom Truffle web3 provider to support Infura authentication
Install lib: Example web3 provider configuration: https://web3js.readthedocs.io/en/v1.7.4/web3-eth.html Integrate with truffle Change authentication Basic to Bearer to use JWT approach
Secure Infura project key
Details: https://docs.infura.io/infura/networks/ethereum/how-to/secure-a-project Patterns: Frontend/Mobile app:+ Requests: 10/sec, 5000/day+ Allowlists: Origins, Contract addresses, User agents (optional)+ JWT required: Public (short expiration), Signed (long expiration) BE service:+ Requests: x0/sec, x000/day+ Allowlists: Contract…
Google Sheets API
API References: https://developers.google.com/sheets/api/guides/values More about credential types: https://github.com/googleapis/google-api-nodejs-client#service-account-credentials Quick start: https://developers.google.com/sheets/api/quickstart/nodejs Main steps: Create Google Cloud Project: https://developers.google.com/workspace/guides/create-project Enable Google Sheets API: https://console.cloud.google.com/flows/enableapi?apiid=sheets.googleapis.com Authorize credentials: In the Google Cloud console,…
How fast to take AWS Certificates?
Explore all AWS Certification exams HOW? Step 1: Complete courses and labs on https://acloudguru.com Step 2: Complete some exams on https://www.examtopics.com/exams/amazon/aws-certified-solutions-architect-professional (Optional) Step 3: Complete simulation exams and understand all…
Solidity Smart Contract Convention X
Just a convention to make a good-looking contract. :3 STRUCTURE FORMAT & LINT Format standard Lint Verify before commit COMMIT RULEs DO use Semantic Commit Messages: https://gist.github.com/joshbuchea/6f47e86d2510bce28f8e7f42ae84c716 DO use Git Branching…
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: This post just share about…
HOW TO CONFIG REDIRECT ROOT/NAKED ROUTE53 DOMAIN HTTP TO WWW HTTPS Using S3 and CloudFront with Route53
STEPs S3 static website hosting bucket same domain name with direct mode Cloudfront using Origin domain of S3 website endpoint (NOT bucket name) + custom domain + custom SSL (via…
Verify smart contract request with multi-signature approach MultiSigEIP712
https://gist.github.com/nhancv/228d1e7db2b58842309e06de554a6640 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…
Solidity get interface id and ERC165
To get interface id, use Remember interfaceId = xor of all selectors (methods) name and param type, don’t care to return type For example: Return zero with empty interface Return…