Contains scripts and whatnot for running a private ethereum blockchain, as well as some example Smart Contracts and documentation about geth and truffle.
> go-ethereum-1.8.x+-stable (geth)
> go-1.10+
> [email protected]
> [email protected]+
> [optional] Mist browser
go-ethereum:
Follow instructions at https://github.com/ethereum/go-ethereum
Get the latest stable release from their releases page and build from source.
go.1.10+:
> sudo add-apt-repository ppa:gophers/archive
> sudo apt update
> sudo apt install golang-1.10-go
> echo "PATH=/usr/lib/go-1.x/bin:$PATH" >> ~/.bashrc
> source ~/.bashrc
> curl -sL https://deb.nodesource.com/setup_9.x | sudo -E bash -
> sudo apt update
> sudo apt install nodejs npm
> npm install -g truffle
> mkdir newContract && cd newContract
> truffle init
[optional] Mist browser
> git clone https://github.com/ethereum/mist.git
> cd mist
> curl -o- -L https://yarnpkg.com/install.sh | bash
> curl https://install.meteor.com/ | sh
> yarn global add electron
> yarn global add gulp
> yarn
BONUS: How to avoid git permission denied errors when using npm:
Follow Option 2 (change npm's default directory)
https://docs.npmjs.com/getting-started/fixing-npm-permissions
Make sure your genesis is how you want it.
Take note of or change the ports each node uses.
To begin:
> cd private-chain
> ./generate_genesis.sh
> Configure your genesis to your liking
> ./initialize_chain.sh
> ./create_account.sh
> ./unlock_on_start.sh
> ./get_enodes.sh
> ./copy_static_nodes.sh
Now you can run each node in separate terminals.
> ./runbootstrap
> CTRL+SHIFT+T
> ./startminer1.sh
> . . .
Now, attach to the bootstrap to ensure they are connected:
> ./attach_nodes.sh (choose b)
In this console, type:
> admin.peers
If nothing appears, make sure you ip and ports are correct and run
./get_endodes.sh && ./copy_static_nodes.sh again
Depending on your setup, get_enodes.sh may not work correctly or at all.
In this case, either make a json file containing all enodes called static-nodes.json.
The enodes should be in a [] list in quotes. Example:
> [ "enode://abunchofhex@<my-private-ip>:<my-udp-port>", "another-enode", . . . ]
Or . . . if the enodes were created but with the wrong IP:
> Open ./enode/new-static-nodes.json in vim
> ESC, SHIFT+: to open command mode in vim
> type '%s/<wrong-ip>/<my-private-ip>/g' and press ENTER
> ESC, SHIFT+:, wq, ENTER
> Now you can run ./copy_static_nodes.sh
To run mist browser, run the following commands:
> cd mist/interface
> meteor --no-release-check
This opens a server on localhost:3000. To now open the GUI:
Open a new terminal window,
> cd mist
> yarn dev:electron --mode mist --rpc http://localhost:<rpc_port> \
> --swarmurl "null" --node-networkid <network_id>
Truffle is a development environment for writing smart contracts for the Ethereum Virtual Machine.
I have a PDF about testing and scripting with truffle in ./docs of this repository [outdated].
Check it out at
http://truffleframework.com/docs/getting_started/installation