Roll Your Own PM by Gnosis

Have you ever gazed at the glory of Gnosis Beta and thought to yourself: "wowowowow those prediction markets are coming, and they are coming in waves! I have so many ideas, WhatAmIGonnaDo??"

Well fret no more. Now it's easier than ever before to roll out your own prediction market application with the help of Gnosis pm-js and pm-contracts. We've showcased just how easy it is with this simple boilerplate built with React and Javascript.

Getting Started

Install requirements with npm

npm install

Start application and navigate to localhost:5000

npm start

Configuration

Edit config.json in scripts to fit your prediction needs!

STEPS

We've broken down the process of utilizing pm-js library into 5 easy steps. For full interactivity, download MetaMask

1. Connect To Provider: Initialize your connection to an ethereum provider (if you are using Metamask, this will be injected directly so move on to Step 2)
2. Create Market: This instantiates a new gnosis object, publishes your event to ipfs, creates a matching centralized oracle, and finally creates and funds a market. Be patient after clicking this, you can check your progress in the browser console.
3. Buy Outcomes: This buys a fixed amount of outcome tokens from your market.
4. Sell Outcomes: Sells what you just bought.
5. Close Market: After the resolution date, you can close your market.

Local Setup

To migrate the pm-contracts onto a local ganache instance with:

npm run ganache

In a separate terminal window:

npm run install-contracts
npm run migrate

Finally, run the following in another terminal window. This will execute Steps 1-2. See if you can use the pm-js documentation to complete the rest.

npm run gnosis

Completed at ETHBuenosAires 2018 By:

Andre Meyer @andre-meyer

Collin Chin @collinc97