202 lines
5.7 KiB
Markdown
202 lines
5.7 KiB
Markdown
title: Embark by Status 3.0
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author: iuri_matias
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summary: "We're happy to announce that Embark 3.0 has been released! Read on for what's inside!"
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categories:
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- announcements
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layout: blog-post
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alias: news/2018/05/03/embark-3-0-released/
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---
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Embark is now part of [Status](https://status.im/) and we are happy to announce Embark 3.0 by Status!
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## New website and Documentation
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Embark has a new website and up to date documentation which can be found at https://framework.embarklabs.io/docs/
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## More Smart Contract Languages
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Besides Solidity, Embark now also supports [Vyper](https://github.com/ethereum/vyper/) out of the box, as well as [Bamboo](https://github.com/pirapira/bamboo) through an embark [plugin](https://github.com/embarklabs/embark-bamboo)
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You can use these languages side by side, and take advantage of Embark's features such as contract testing just like you would with Solidity.
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## DApp Imports
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From the dapp side, contracts and libs like EmbarkJS can be implicitly imported, for e.g to import a contract:
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```Javascript
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import SimpleStorage from 'Embark/contracts/SimpleStorage'
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```
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EmbarkJS:
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```Javascript
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import EmbarkJS from 'Embark/EmbarkJS'
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```
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Or a initialized web3 instances (with the config of `config/contracts.json`)
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```Javascript
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import web3 from 'Embark/web3'
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```
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The typical ES6 imports will also simply work. You can even import directly css files inside js files:
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```Javascript
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import React from 'react';
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import { Tabs, Tab } from 'react-bootstrap';
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import './dapp.css';
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```
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## Friendlier torwards contracts-only projects
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Although Embark is focused on DApps, it can perfectly be used for projects targeting only smart contracts and no other components.
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There is a now a template to create a simple project with all the components disabled except smart contracts:
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`embark new AppName --simple`
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You can also fine tune this in embark.json by specifying the config of each component or setting it to false if you don't want it.
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```JSON
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...
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"config": {
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"contracts": "contracts.json",
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"blockchain": false,
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"storage": false,
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"communication": false,
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"webserver": false
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},
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...
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```
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## Embark Graph
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The command `embark graph` will generate a ER graph of the dapp contracts. This takes into account not just the inheritance but also the relationships specified in the configuration.
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## Config contracts from URIs
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Embark now supports referencing directly URIs including http, git, github, or directly files contained in other directories than the ones specified in embark.json
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Embark is smart enough to take care of the dependencies of the resources and present them in a consistent manner to the compiler, it just works!
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```JSON
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{
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"development": {
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"contracts": {
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"ERC725": {
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"file": "git://github.com/status/contracts/contracts/identity/ERC725.sol#develop"
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},
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"ERC725": {
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"file": "github.com/status/contracts/contracts/identity/ERC725.sol"
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},
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"Ownable": {
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"file": "https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/ownership/Ownable.sol"
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},
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"SimpleStorage": {
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"file": "./some_folder/simple_storage.sol"
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}
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}
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}
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}
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```
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## Importing contracts from URIs directly in Solidity
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You can also import the same URIs directly in solidity which is quite useful for interfaces, e.g:
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```Javascript
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import "git://github.com/status/contracts/contracts/identity/ERC725.sol#develop";
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import "github.com/status/contracts/contracts/identity/ERC725.sol";
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import "https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/ownership/Ownable.sol"
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contract MyContract is Ownable {
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...
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}
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```
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## Contracts from npm packages
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You can now install npm packages that contain contracts (e.g `npm install --save openzeppelin-solidity`) and refer them to them in the contracts.json file:
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```Javascript
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{
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"development": {
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"contracts": {
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"ERC20": {
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file: "openzeppelin-solidity/contracts/token/ERC20/ERC20.sol"
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}
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}
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}
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}
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```
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or even import them directly in solidity without the need for the config:
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```Solidity
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import "openzeppelin-solidity/contracts/ownership/Ownable.sol";
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contract MyContract is Ownable {
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...
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}
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```
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## Embark Demo App
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The demo app has been updated to reflect the new structure. It also now uses ReactJS which provides a good example on how to use React with Embark.
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## Web3.js 1.0 by default
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Embark now uses web3.js 1.0 in all layers, including in the console and in contracts testing.
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## More contract deploy configs
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A new config called `afterDeploy` is available and it can be used to specify actions to run after all contracts have been deployed.
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It's possible to also specify the specific account to deploy from using the directive `from` or `fromIndex`
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## Versions Configuration
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The versions config has been moved to embark.json, the download mechanism has also been fastly improved under the hood:
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```
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...
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"versions": {
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"web3": "1.0.0-beta",
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"solc": "0.4.23",
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"ipfs-api": "17.2.4"
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},
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...
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```
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## Test Improvements
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In the tests you can now specify a mnemonic:
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```Javascript
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config({
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mnemonic: "labor ability deny divide mountain buddy home client type shallow outer pen"
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})
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````
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It's also possible to specify a node, in case you don't want to run in the internal vm:
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```Javascript
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config({
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node: "http://localhost:8545"
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})
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````
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## Swarm support
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Swarm is now completely integrated on-par with IPFS. You can use interact with Swarm on the dapp side, as well as upload your dapp to Swarm.Swarm
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## Misc Bugfixes and Improvements
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For a complete list please refer to the [release notes in github](https://github.com/embarklabs/embark/releases/tag/3.0.0)
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## Chatroom
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To discuss about Embark or Dapp development, please [join us at the gitter channel](https://gitter.im/embark-framework/Lobby)
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