# Web3.js - Getting started with the development of an Dapp - Samuel Furter

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###### tags: `jsdc2018`

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# Core concepts
## Dapp Stack

## [JSON-RPC](https://www.jsonrpc.org/specification)

## ABI Encoding

# Public API
## Modules
* Ethereum
* Swarm
* Whisper

# interacting with web3.js
## Promises

結合 Promise + EventEmitter 的特性 = PromiEvent

PromiEvent (web3-core-promievent)
* [promises-events](https://web3js.readthedocs.io/en/1.0/callbacks-promises-events.html)

## Subscriptions
PromiEvent 也可以作為 Subscription 使用

[Web3.js Doc](https://web3js.readthedocs.io/en/1.0/)

# Dapp example