Decentralized Wikipedia

Welcome to the DAAR project. The idea will be to implement a complete Wikipedia in a decentralized way, on Ethereum. This will have cool side effects, like not be forced to pay for servers.

Installation

# With HTTPS
git clone https://github.com/ghivert/decentralized-wikipedia.git
# Or with SSH
git clone git@github.com:ghivert/decentralized-wikipedia.git

You’ll need to install dependencies. You’ll need Ganache, Node.js and NPM or Yarn. You’ll need to install Metamask as well to communicate with your blockchain.

• Ganache is a local blockchain development, to iterate quickly and avoiding wasting Ether during development.
• Node.js is used to build the frontend and running truffle, which is a utility to deploy contracts.
• NPM or Yarn is a package manager, to install dependencies for your frontend development. Yarn is recommended.
• Metamask is a in-browser utility to interact with decentralized applications.

Some setup

Once everything is installed, launch Ganache. Create a new workspace, give it a name, and accept. You should have a local blockchain running in local. Now you can copy the mnemonic phrase Ganache generated, open Metamask, and when it asks to import a mnemonic, paste the mnemonic. Create the password of your choice and that’s fine. Now you can connect Metamask to the blockchain. To do this, add a network by clicking on main network and personalized RPC. Here, you should be able to add a network.

Once you have done it, you’re connected to the Ganache blockchain!

Run the frontend

Install the dependencies.

# Yarn users
yarn
# NPM users
npm install

Compile the contracts.

# Yarn users
yarn contracts:build
# NPM users
npm run contracts:build

Create a symlink for your OS.

# Windows
mklink /D src\build "..\build"
move /Y truffle.js truffle-config.js

# Unix and macOS
ln -s ../build ./src/build

Run the frontend

# Yarn users
yarn start
# NPM users
npm start

You’re good to go!

Subject

Implement a Wikipedia from scratch in Solidity.

The program should be able to:

• Read an article by its ID (an uint).
• Someone should be able to submit a new article with ID and content.
• Someone should be able to update an article.

Bonus:

• Keep history of modifications and display it in the app.
• Integrate the DApp with Fortmatic.