Developer Guide

In order to follow this guide, you will need to be comfortable working in your OS’s shell, writing JavaScript, and working with npm. A working knowledge of Ethereum, Solidity, and Truffle would greatly ease the use of this library, but is not strictly necessary for getting started. The usage of a VCS such as Git is also encouraged, but is not explained here.

The Gnosis JavaScript library should work for any OS. It has the following system requirements:

• Node.js (versions >= 7 should work)
• NPM (should be installed with Node.js, and versions >= 5 should work)
• Git (optional)

Table of Contents

• Installation
  • Setting up a project using npm
  • Browser use
  • Integration with webpack projects (advanced)
  • Setting up an Ethereum JSON RPC
    • Ganache-cli and private chain providers
    • MetaMask
• API Overview
• Events, Oracles and Markets
  • Questions About the Future, Oracles, and Trust
  • Events and Collateral
  • Markets and Automated Market Makers
  • Events with Scalar Outcomes
• LMSR Primer
  • Bounded Loss from the \(b\) Parameter
  • Marginal Price of Outcome Tokens
  • LMSR Calculation Functions