Etherless-smart

Smart contract component of Etherless, a module that handles etherless-cli / etherless-server communication (and payment of this work).

This module is made to work in conjunction with the other components of Etherless

Requirements

In order to make this module work, you need to have these installed:

• Nodejs LTS
• Truffle npm install -g truffle
• Ganache-cli npm install -g ganache-cli

Installation

• Download this repo
• From inside of the downloaded repo run the command npm install to install all the missing dependencies

Interacting with the Ropsten testnet and Ganache

In order to interact with the Ropsten testnet, before beginning the installation process you need two keys: an Infura project id (from your own Infura account) and the mnemonic phrase of your Ethereum account. Having these credentials you need to create a .env file with the following structure:

"MNENOMIC = // Your metamask’s recovery words
"INFURA_API_KEY = // Your Infura API Key after its registration


Replace the matching fields with your own.

Etherless-smart contracts deployment

In order to be accessible, Etherless-smart contracts should be deployed, to the chosen network from the ones, defined in the networks.js file, in the same file values like gasLimit and gasPrice can be set. The contract deployment should be done using the Openzeppelin-cli, in order to easily upgrade the contracts in the future. For detailed instructions on deploying a contract from the Openzeppelin-cli refer to the documentation. The contracts should be deployed as follows:

• run the command truffle compile;
• the EtherlessStorage contract should be deployed first, using npx oz deploy and the resulting contract address should be stored somewhere safe;
• then the EtherlessSmart contract should be deployed, using npx oz deploy and calling the initialize function as prompted by the cli. The initializer functions requires:
  • the address of the storage contract, previously deployed;
  • the address used for the Etherless-server module;
  • the service fee that should be applied to the requests;