klips/blockchain/eth/truffle-solidity/README.md

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A template project for getting started working on the Ethereum blockchain.
This project comes with basic packages for compiling and deploying Solidity contracts with Truffle.
Run `cp example.secrets.json secrets.json` and fill out the copied `secrets.json` with your information.
From this directory, run `npm install` to install required packages.
From there, we can create any contracts and deploy to development or public networks...
### Development Deploy
```
npx truffle develop
truffle(develop)> migrate
Compiling your contracts...
===========================
> Compiling ./contracts/Migrations.sol
> Artifacts written to /home/kapper/Code/klips/blockchain/eth/truffle-solidity/build/contracts
> Compiled successfully using:
- solc: 0.8.0+commit.c7dfd78e.Emscripten.clang
Starting migrations...
======================
> Network name: 'develop'
> Network id: 5777
> Block gas limit: 6721975 (0x6691b7)
1_initial_migration.js
======================
Deploying 'Migrations'
----------------------
> transaction hash: 0xa82aeb7e6e3839f06321edc4b41fdb92e70f87b9a989f846fd465623deda4139
> Blocks: 0 Seconds: 0
> contract address: 0xD79FAf957cC8d3d6c7f8fc10875D8aF75e4eE9F1
> block number: 1
> block timestamp: 1620058221
> account: 0xcFE4341F1DFEbdff039642e1A26032755F38ADA5
> balance: 99.995114
> gas used: 244300 (0x3ba4c)
> gas price: 20 gwei
> value sent: 0 ETH
> total cost: 0.004886 ETH
> Saving migration to chain.
> Saving artifacts
-------------------------------------
> Total cost: 0.004886 ETH
Summary
=======
> Total deployments: 1
> Final cost: 0.004886 ETH
- Blocks: 0 Seconds: 0
- Saving migration to chain.
truffle(develop)> .exit
```
### Public Network Deploy
To deploy, you need ETH on a wallet connected to ropsten. Metamask is the wallet I use.
I explain how to configure metamask on ropsten on [Knoats - Solidity](https://knoats.com/books/c/page/solidity)
Give yourself test Ethereum with the [Ropsten ETH Faucet](https://faucet.ropsten.be)
To deploy to ropsten test network, and verify using `truffle-verify-plugin` -
```asm
npx truffle migrate --network ropsten
npx truffle run verify Migrations --network ropsten
```
For a guide on how I configured this project, see [Knoats - Solidity](https://knoats.com/books/c/page/solidity)
An example ERC20 token can be found at [shaunrd0/karma](https://gitlab.com/shaunrd0/karma)