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README.md
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README.md
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@ -57,8 +57,8 @@ Table of Contents
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Installation
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======
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Requirements: geth (1.6.5 or higher recommended, 1.6.0 or lower for whisper v1 support; whisper v5 support coming soon), node (6.9.1 or higher is recommended) and npm
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Optional: testrpc (3.0 or higher) if using the simulator or the test functionality.
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Requirements: geth (1.6.7 or higher recommended), node (6.9.1 or higher is recommended) and npm
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Optional: testrpc (3.0 or higher) if using the simulator
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Further: depending on the dapp stack you choose: [IPFS](https://ipfs.io/)
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```Bash
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@ -174,18 +174,18 @@ Embark will automatically take care of deployment for you and set all needed JS
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```Javascript
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# app/contracts/simple_storage.sol
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pragma solidity ^0.4.7;
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pragma solidity ^0.4.17;
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contract SimpleStorage {
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uint public storedData;
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function SimpleStorage(uint initialValue) {
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function SimpleStorage(uint initialValue) public {
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storedData = initialValue;
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}
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function set(uint x) {
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function set(uint x) public {
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storedData = x;
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}
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function get() constant returns (uint retVal) {
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function get() view returns (uint retVal) {
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return storedData;
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}
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}
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@ -194,9 +194,9 @@ Will automatically be available in Javascript as:
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```Javascript
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# app/js/index.js
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SimpleStorage.set(100);
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SimpleStorage.get().then(function(value) { console.log(value.toNumber()) });
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SimpleStorage.storedData().then(function(value) { console.log(value.toNumber()) });
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SimpleStorage.methods.set(100).send({from: web3.eth.defaultAccount});
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SimpleStorage.methods.get().call().then(function(value) { console.log(value.toNumber()) });
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SimpleStorage.methods.storedData().then(function(value) { console.log(value.toNumber()) });
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```
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You can specify for each contract and environment its gas costs and arguments:
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@ -303,6 +303,45 @@ Contracts addresses can be defined. If an address is defined, Embark uses the de
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}
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```
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You can Also specify which versions of solc and web3.js to use:
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```Json
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# config/contracts.json
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{
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...
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"development": {
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"versions": {
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"web3.js": "1.0.0-beta",
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"solc": "0.4.17"
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}
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}
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...
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}
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```
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You specify which node the contracts should be deploy to and the order of nodes
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the dapp should connect to. $WEB3 means the dapp will try to use an existing
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web3 object first if available.
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```Json
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# config/contracts.json
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{
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...
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"development": {
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"deployment": {
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"host": "localhost",
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"port": 8545,
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"type": "rpc"
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},
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"dappConnection": [
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"$WEB3",
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"http://localhost:8545"
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]
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}
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...
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}
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```
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EmbarkJS
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======
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@ -310,17 +349,15 @@ EmbarkJS is a javascript library meant to abstract and facilitate the developmen
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**promises**
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methods in EmbarkJS contracts will be converted to promises.
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```Javascript
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var myContract = new EmbarkJS.Contract({abi: abiObject, address: "0x123"});
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myContract.get().then(function(value) { console.log("value is " + value.toNumber) });
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myContract.methods.get().call().then(function(value) { console.log("value is " + value.toNumber) });
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```
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events:
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```Javascript
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myContract.eventName({from: web3.eth.accounts}, 'latest').then(function(event) { console.log(event) });
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myContract.events.eventName({from: web3.eth.accounts}, 'latest').then(function(event) { console.log(event) });
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```
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**deployment**
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@ -391,7 +428,7 @@ EmbarkJS - Communication
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**initialization**
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For Whisper (note: currently requires geth 1.6.0):
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For Whisper (note: currently requires geth 1.6.0 or higher):
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```Javascript
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EmbarkJS.Messages.setProvider('whisper')
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@ -438,12 +475,6 @@ Embark includes a testing lib to rapidly run & test your contracts in a EVM.
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```Javascript
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# test/simple_storage_spec.js
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var assert = require('assert');
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var Embark = require('embark');
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var EmbarkSpec = Embark.initTests();
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var web3 = EmbarkSpec.web3;
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describe("SimpleStorage", function() {
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before(function(done) {
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this.timeout(0);
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@ -58,9 +58,9 @@ author = u'Iuri Matias'
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# built documents.
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#
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# The short X.Y version.
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version = u'2.6'
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version = u'2.5'
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# The full version, including alpha/beta/rc tags.
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release = u'2.6.0'
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release = u'2.5.2'
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# The language for content autogenerated by Sphinx. Refer to documentation
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# for a list of supported languages.
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