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Nhan Cao
Nhan Cao

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Solidity Smart Contract Convention X

Just a convention to make a good-looking contract. :3 Feel free to apply it. STRUCTURE - src /active: For working contracts /interfaces: Contains all contract interface type /libraries: Contains all library type…

Solidity

3 min read

Solidity

3 min read


4 days ago

Blast L2 Airdrop Early Access

Use the available codes below to join, and complete the required steps. Deposit small ETH (Withdrawing from the bridge will be available…

1 min read

Blast L2 Airdrop Early Access
Blast L2 Airdrop Early Access

1 min read


Oct 25

Deploy IBFT Ethereum Private Network with Hyperledger Besu, Ethstats, Ethernal to AWS Cloud via Terraform

Network configuration Ethereum Client: Besu Ethereum Stats: Ethstats Ethereum Explorer: Ethernal Concensus: IBFT2.0 Deploy environment: AWS Cloud via Terraform Gas price: 1000 Wei (0.000001 GWei) Gas limit: 30M Ethereum client: besu Block time: 1s Block size: ~0.6KB Hardware recommendation AWS instance type: >= t3.medium Processor: x86–64 bit 2–4+ cores Memory: 4–8 GB Storage: 50–100GB …

Ethereum Blockchain

1 min read

Deploy IBFT Ethereum Private Network with Hyperledger Besu, Ethstats, Ethernal to AWS Cloud via…
Deploy IBFT Ethereum Private Network with Hyperledger Besu, Ethstats, Ethernal to AWS Cloud via…
Ethereum Blockchain

1 min read


Jul 21

Webpack build babel-loader error parsing some typescript/es lib Module parse failed: Unexpected token

Error detail: ./node_modules/@walletconnect/ethereum-provider/dist/index.es.js 59:10 Module parse failed: Unexpected token (59:10) File was processed with these loaders: * ./node_modules/babel-loader/lib/index.js You may need an additional loader to handle the result of these loaders. | rpcMap: M | }, > l = n?.filter(g => !u.includes(g)), |…

Babel

1 min read

Webpack build babel-loader error parsing some typescript/es lib Module parse failed: Unexpected…
Webpack build babel-loader error parsing some typescript/es lib Module parse failed: Unexpected…
Babel

1 min read


Jul 21

nginx redirect domain config

DNS service (Cloudflare): New A record to your server IP SSH to server new virtual domain for redirecting. Note: Change meet.nhancv.com to your domain # Create domain config sudo -s cat <<…

Nginx

1 min read

Nginx

1 min read


Jul 21

Coinbase Base network vs Arbitrum

About Base

Blockchain

1 min read

Coinbase Base network vs Arbitrum
Coinbase Base network vs Arbitrum
Blockchain

1 min read


Oct 19, 2022

Custom Truffle web3 provider to support Infura authentication

Secure Infura project key: — Secure Infura project key Details: https://docs.infura.io/infura/networks/ethereum/how-to/secure-a-projectnhancv.medium.com Install lib: - For Http: yarn add web3-providers-http - For Ws: yarn add web3-providers-ws Example web3 provider configuration: https://web3js.readthedocs.io/en/v1.7.4/web3-eth.html // ==== // Http // ==== const Web3HttpProvider = require('web3-providers-http');

Infura

2 min read

Infura

2 min read


Oct 19, 2022

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 addresses, User agents (optional) + Project secret required: JWT or API secret

Infura

2 min read

Secure Infura project key
Secure Infura project key
Infura

2 min read


Oct 18, 2022

Google Sheets API

1 min read

Google Sheets API
Google Sheets API

1 min read


Apr 19, 2022

How fast to take AWS Certificates?

Nhan Cao Nhan Cao résuménhancv.github.io https://www.credly.com/users/nhancv

Aws Certification

2 min read

How fast to take AWS Certificates?
How fast to take AWS Certificates?
Aws Certification

2 min read

Nhan Cao

Nhan Cao

607 Followers

nhancv.com

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