Who Should Read This Document
This doc is for developers, and it aims to show how they can join the Loom Testnet and deploy their smart contracts. If you are looking for information on how to run nodes or to become a validator, please checkout our Validator Guide.
Deploying to Loom PlasmaChain is no different from deploying to the Ethereum main net, or to Rinkeby. If you know how to do one, you also know how to do the other.
We at Loom are using Truffle to build, test, and deploy our smart contracts. To make our life easier, we developed something called a provider that lets Truffle deploy to Loom PlasmaChain just like it deploys to Ethereum.
Without delving too much into details, the provider works like a bridge that makes Web3.js calls compatible with Loom PlasmaChain.
This document shows how you can use
Truffle and the Loom Truffle Provider to build a simple Web UI that interacts with Loom PlasmaChain.
Make sure the following requirements are met and then follow the steps in the next section:
Node >= 8 yarn or npm
Setting Things Up
First, let's clone the Truffle DAppChainExample repository. Open a terminal,
cd into the directory where you store your projects, and run the following command:
git clone https://github.com/loomnetwork/truffle-dappchain-example
Run against Loom Testnet
Generate the Loom private key
The following command will download the
loom binary and generate the private key for you:
The Loom private key will be saved into a file called
Deploy to extdev_plasma_us1
As an example, we will deploy and run our application against
Run the following command:
The above command will compile and then deploy our smart contract to
Run this command below to send transactions to the smart contract deployed to
If everything looks good, let's spin up a web server and interact with our smart contract.
Start the Web Interface
The web interface is built with React and Webpack. Open a new terminal and run the following command:
The web interface is available on http://localhost:8080.