frozeman

{
    "nonce": "0x0000000000000042", 
    "difficulty": "0x1", 
    "alloc": {
        "990ccf8a0de58091c028d6ff76bb235ee67c1c39": {
            "balance": "200909800000000000000000000"
        },
        "343c98e2b6e49bc0fed722c2a269f3814ddd1533": {
            "balance": "1000009800000000000000000000"
        }

frozeman

This method should notify a dapp when the node is syncing (e.g. importing more than 10 blocks), so that dapps can stop asking nodes or process incoming blocks for performance reasons.

We might add fields in the future for state db syncing.

eth_syncing

Returns an object object with data about the sync status.

frozeman

/*
This creates a public tradeable fungible token in the Ethereum Blockchain.
https://github.com/ethereum/wiki/wiki/Standardized_Contract_APIs
 
Unmodified this will create a cryptoasset with a fixed market cap 
wholly owned by the contract creator. You can create any function
to change this contract, like allowing specific rules for the issuance,
destruction and freezing of any assets. This contract is intended for
educational purposes, you are fully responsible for compliance with
present or future regulations of finance, communications and the 

frozeman

/*
Basically "web3" comes from Mist,
but "Web3" CAN come from  the dapp.

A Dapp has 3 ways to use web3.
2. and 3. would work when in Mist and outside.
*/

// 1. simply use, web3 comes already defined

frozeman

This is outdated: The ERC-20 is here: ethereum/EIPs#20

Token

Methods

totalSupply

frozeman

Process:               Electron [17945]
Path:                  /Users/USER/Sites/*/Ethereum-Wallet.app/Contents/MacOS/Electron
Identifier:            com.ethereum.wallet
Version:               0.3.8 (0.3.8)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Electron [17945]
User ID:               501

Date/Time:             2016-01-07 17:04:31.448 +0100

frozeman

TODO: update web3.js examples ?

• uses BN instead of BigNumber
• added websockets and new events for these providers (web3.currentProvider.on 'connect', 'end', 'error', 'timeout')
• changed web3.eth.sendRawTransaction -> web3.eth.sendSignedTransaction
• added web3.eth.subscription
  • web3.eth.subscription('logs', {address: '0x12', topics: [], fromBlock: ''}) allows only fromBlock, use web3.eth.getPastLogs for a specifc range of past blocks.
  • subscriptions return events like:
    • for "logs": "error", "log", "deleted/reverted"
    • for syncing: "error", "started", "processing", "ended"

frozeman

// un"addresses" contract object
var myContrac2 = new web3.eth.contract(abi)
myContrac2.address = '0x12345678...'; // add address later

// initiate with address
var myContrac = new web3.eth.contract(abi, address)

// deploy contract
eventemitter = new web3.eth.contract(abi).deploy(param1, {data: '0x23456'});

frozeman

// Open the wallet console: Menu -> Develop -> Toggle console ...
// Run the following script

_.each(Wallets.find().fetch(), function(item){
    if(item.address)
        Wallets.update(item._id, {$set: {address: item.address.toLowerCase()}}); 
});
_.each(CustomContracts.find().fetch(), function(item){
    if(item.address)
        CustomContracts.update(item._id, {$set: {address: item.address.toLowerCase()}}); 

frozeman

const spawn = require('child_process').spawn;

var bruteForce = function(path, pw, callback) {
    var error = false;

    // start import process
    var nodeProcess = spawn(nodeBinary, ['wallet', 'import', path]);

    nodeProcess.once('error',function(){
        error = true;