ÐApp

Running

Setup

yarn

Local Ethereum client

yarn testrpc

Compile/Deploy Contracts

yarn contracts

Develop

yarn start

What's a ÐApp then?

ÐApp => Decentralized App

A ÐApp has its backend code (Ethereum contracts) running on a decentralized peer-to-peer network (Ethereum). Contrast this with an app where the backend code is running on centralized servers.

A ÐApp can have frontend code and user interfaces written in any language (just like an app) that can make calls to its backend.

App = frontend + server

ÐApp = frontend + contracts

https://ethereum.stackexchange.com/questions/383/what-is-a-dapp/384#384

ÐApps are cool:

A decentralized architecture also encourages innovation: since the interface is detached from the data, anyone can come up with a new interface to the same app, creating a more vibrant and competing ecosystem.

https://blog.ethereum.org/2016/07/12/build-server-less-applications-mist/

How do ÐApps compare to Apps?

TODO

Web3

To run a Ðapp you'll need access to the web3 JavaScript API, which implements the Generic JSON RPC spec:

• To run in a web browser install the MetaMask plugin for Chrome
• Or include the web3 package: npm i web3
• Or use the Mist browser

Contracts

TODO - description, comparison with API

Testing

TODO - how to test contracts