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EtherSim is an Ethereum RPC simulator for testing and development purposes

License: MIT License

JavaScript 100.00%

ethersim's Introduction

Hi there 👋

🔭 I’m currently working on ...

Head of Desktop at Status.im (formerly Remix Core Dev at the Ethereum Foundation)

📂 Previous open source projects ...

Embark Framework - First Ethereum Framework. A Framework for serverless Decentralized Applications using Ethereum, IPFS and other platforms
Ethersim - First Ethereum Simulator in javascript, later forks became Ganache
Subspace - Library to create reactive Dapps
Transaction Relay - First POC of gasless Ethereum transactions
Remix IDE & Libs - Core Contributor
jump-tracker - Vim plugin that tracks your cursor when it 'jumps'

⚡ Main Interests: Decentralized Protocols & Apps, Machine Learning (in particular: image generation, reinforcement learning and genetic algorithms)

ethersim's People

Contributors

Stargazers

Watchers

Forkers

vor0220 tcoulter leonmf ryepdx destenson xertrov apmilen akhilss keysethos ggomagundan adolfoeliazat revcozmo ypuk

ethersim's Issues

TypeError: Cannot read property 'stopWatching' of undefined

Here is a nodejs script that i execute via node script.js

var Web3 = require('web3');
var web3 = new Web3(); 

var EtherSim = require('ethersim'); 
var sim = new EtherSim.init();
web3.setProvider(sim.provider);

//getting bytecode and ABI...

sim.reset();
sim.createAccounts(10, function() {
    sim.setBalance(web3.eth.accounts[0], 123450000, function() {
        web3.eth.getAccounts(function(err, accs) {
            var TestContract = web3.eth.contract(ABI);
            TestContract.new({
                from: web3.eth.accounts[0],
                gas : 3000000,
                data: bytecode
            }, function(err, deployedContract){
                console.log(deployedContract);
                //sim.mine() //should be required to get address?
                var transactionReceipt = web3.eth.getTransactionReceipt(deployedContract.transactionHash);

                console.log(transactionReceipt.contractAddress);
                //sim.reset(); never ends
            });
        });
    }); 
});

I get the following error :

/vagrant/node_modules/web3/lib/web3/contract.js:128
                            filter.stopWatching();
                                  ^

TypeError: Cannot read property 'stopWatching' of undefined
    at Object.callback (/vagrant/node_modules/web3/lib/web3/contract.js:128:35)
    at /vagrant/node_modules/web3/lib/web3/method.js:142:25
    at /vagrant/node_modules/web3/lib/web3/requestmanager.js:89:9
    at /vagrant/node_modules/ethersim/lib/manager.js:60:7
    at Manager.eth_getCode (/vagrant/node_modules/ethersim/lib/manager.js:110:10)
    at Manager.request (/vagrant/node_modules/ethersim/lib/manager.js:64:19)
    at TestProvider.sendAsync (/vagrant/node_modules/ethersim/lib/provider.js:11:23)
    at RequestManager.sendAsync (/vagrant/node_modules/web3/lib/web3/requestmanager.js:80:19)
    at Eth.send [as getCode] (/vagrant/node_modules/web3/lib/web3/method.js:141:42)
    at Object.callback (/vagrant/node_modules/web3/lib/web3/contract.js:122:39)

if I uncomment the last sim.reset() node hang

any idea?

Unsupported media type

Hi, when trying to access via http i get "Unsupported media type" as a return value.
running with ethersim

from pyethapp import rpc_client
c = rpc_client.JSONRPCClient(8101)
c.blocknumber()

sent:
{
  "jsonrpc": "2.0", 
  "method": "eth_blockNumber", 
  "id": 6
}
received:
Unsupported media type

this works when using geth or pyethapp.

I tried with web3.py as well.

Cannot use 'call'-function offChain

When is run a call-function to get some data from the blockchain without making a transaction, is says

Error: sender doesn't have enough funds to send tx. The upfront cost is: 3141592 and the senders account only has: 0

state.contractInstance['foobar'].call(function(err, res){
   err && console.dir(err);
   console.dir(res);
});

EDIT: The call works of course, if I give enough eth to the coinbase. But shouldn't be the call-function completely offchain?

Having trouble installing via NPM

nick@nick:~/Github$ sudo npm install -g ethersim
[sudo] password for nick:
npm ERR! not a package /tmp/npm-16321-owQ1nK8p/github.com/iurimatias/node-jsonrpc2.git
npm ERR! Error: ENOENT, open '/tmp/npm-16321-owQ1nK8p/github.com/iurimatias/node-jsonrpc2.git-unpack/package.json'
npm ERR! If you need help, you may report this entire log,
npm ERR! including the npm and node versions, at:
npm ERR! http://github.com/npm/npm/issues

npm ERR! System Linux 4.0.0-040000-generic
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "ethersim"
npm ERR! cwd /home/nick/Github
npm ERR! node -v v0.10.25
npm ERR! npm -v 1.4.21
npm ERR! path /tmp/npm-16321-owQ1nK8p/github.com/iurimatias/node-jsonrpc2.git-unpack/package.json
npm ERR! code ENOENT
npm ERR! errno 34
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /home/nick/Github/npm-debug.log
npm ERR! not ok code 0

having trouble installing ethersim from NPM, any thoughts?

EtherSim exception thrown during based truffle test

Copied from: trufflesuite/truffle#54 (comment)

@tcoulter EtherSim from npm still tries to install an outdated secp256k1, causing it to fail:

ethersim/node_modules/ethereumjs-block/node_modules/secp256k1

> [email protected] install /usr/local/lib/node_modules/ethersim/node_modules/ethereumjs-vm/node_modules/secp256k1

The develop copy per your instructions has the correct version and therefore installed, but running truffle test caused it to throw an exception:

-> % ./bin/ethersim -p 8545
EtherSim v0.1.6

Available Accounts
==================
0x1a9dc2ad31f3fdf575479760980b242d073ee149
0xd13493e9d590ba763c202ab4fbe4ab17978cda32
0xbce16ecae7407ac3e852b8d8ea088746e357dc82
0x6d17d3b407ff990279cd852c5fe4805523cdc293
0xba88351daf7a545becf4fccd1555e2750b445c9c
0x7ab301af6a5d37c09b1264d46a42c78288a339ff
0xe0c1976e9e9350986aa942b1176f6d23e0db90f8
0xfb61aa6b35754d8779f989e50e616b0ab4d11662
0x52e18c7cda62b91cbeafd52fbd0561720e2bd804
0xa2d916f6f7490ab9f1aa5e444ef078eb7478b23b

Listening on localhost:8545
eth_accounts
eth_coinbase
eth_sendTransaction
eth_newBlockFilter
eth_getFilterChanges
/Users/greg/Ethereum/frameworks/EtherSim/lib/blockchain.js:313
    queued.callback(err, result);
           ^

TypeError: queued.callback is not a function
    at intermediary (/Users/greg/Ethereum/frameworks/EtherSim/lib/blockchain.js:313:12)
    at /Users/greg/Ethereum/frameworks/EtherSim/lib/blockchain.js:418:7
    at Object.async.eachSeries (/Users/greg/Ethereum/frameworks/EtherSim/node_modules/async-eventemitter/node_modules/async/lib/async.js:130:20)
    at VM.AsyncEventEmitter.emit (/Users/greg/Ethereum/frameworks/EtherSim/node_modules/async-eventemitter/lib/AsyncEventEmitter.js:42:9)
    at afterBlock (/Users/greg/Ethereum/frameworks/EtherSim/node_modules/ethereumjs-vm/lib/runBlock.js:55:10)
    at /Users/greg/Ethereum/frameworks/EtherSim/node_modules/ethereumjs-vm/lib/runBlock.js:179:9
    at /Users/greg/Ethereum/frameworks/EtherSim/node_modules/ethereumjs-vm/lib/cache.js:136:7
    at /Users/greg/Ethereum/frameworks/EtherSim/node_modules/async/lib/async.js:52:16
    at iterate (/Users/greg/Ethereum/frameworks/EtherSim/node_modules/async/lib/async.js:260:24)
    at Object.async.forEachOfSeries.async.eachOfSeries (/Users/greg/Ethereum/frameworks/EtherSim/node_modules/async/lib/async.js:281:9)

truffle test got as far as:

-> % truffle test
Using environment test.
Compiling contracts...


  Contract: Example

EtherSim preventing Embark installation on OS X due to outdated dependencies

Since this is slightly different from issue described in #1, I'm copying this comment here:

EtherSim is using an outdated version of ethereumjs-vm. The latest version of ethereumjs-vm is 1.0.1, and it has the latest secp256k1 with the fix for OS X.

Unless there are other uncaught outdated dependencies, addressing this should fix:

ReferenceError: ethUtil is not defined

Hello, this is an error I just got using Dapple:

/usr/local/lib/node_modules/dapple/node_modules/solc/soljson.js:1
(function (exports, require, module, __filename, __dirname) { var Module;if(!Module)Module=(typeof Module!=="undefined"?Module:null)||{};var moduleOverrides={};for(var key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}var ENVIRONMENT_IS_WEB=typeof window==="object";var ENVIRONMENT_IS_WORKER=typeof importScripts==="function";var ENVIRONMENT_IS_NODE=typeof process==="object"&&typeof require==="function"&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER;var ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;if(ENVIRONMENT_IS_NODE){if(!Module["print"])Module["print"]=function print(x){process["stdout"].write(x+"\n")};if(!Module["printErr"])Module["printErr"]=function printErr(x){process["stderr"].write(x+"\n")};var nodeFS=require("fs");var nodePath=require("path");Module["read"]=function read(filename,binary){filename=nodePath["normalize"](filename);var ret=nodeFS["readFileSync"](filena

ReferenceError: ethUtil is not defined
    at Blockchain.setGasLimit (/usr/local/lib/node_modules/dapple/node_modules/ethersim/lib/blockchain.js:138:16)
    at Object.module.exports.EVM (/usr/local/lib/node_modules/dapple/lib/web3Factory.js:65:33)
    at Object.TestPipeline (/usr/local/lib/node_modules/dapple/lib/pipelines.js:116:27)
    at Object.<anonymous> (/usr/local/lib/node_modules/dapple/cmd/main.js:250:25)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)

I think it could be an issue here, because when I look at blockchain.js it doesn't look like ethUtil is actually defined.

Link to Dapple issue: dapphub/dapple#281

iurimatias / ethersim Goto Github PK

ethersim's Introduction

Hi there 👋

ethersim's People

Contributors

Stargazers

Watchers

Forkers

ethersim's Issues

TypeError: Cannot read property 'stopWatching' of undefined

Unsupported media type

Cannot use 'call'-function offChain

Having trouble installing via NPM

EtherSim exception thrown during based truffle test

EtherSim preventing Embark installation on OS X due to outdated dependencies

ReferenceError: ethUtil is not defined

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