Merge pull request #505 from embark-framework/embarkjs_wrapper

Embarkjs wrapper
This commit is contained in:
Iuri Matias 2018-06-11 17:19:43 -04:00 committed by GitHub
commit bedd5fd4e7
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4 changed files with 479 additions and 14 deletions

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@ -1,9 +1,14 @@
var EmbarkJS = {
onReady: __embarkContext.execWhenReady
onReady: function(cb) {
if (typeof (__embarkContext) === 'undefined') {
return cb();
}
return __embarkContext.execWhenReady(cb);
}
};
EmbarkJS.isNewWeb3 = function() {
var _web3 = new Web3();
EmbarkJS.isNewWeb3 = function(web3Obj) {
var _web3 = web3Obj || (new Web3());
if (typeof(_web3.version) === "string") {
return true;
}
@ -17,19 +22,75 @@ EmbarkJS.Contract = function(options) {
this.abi = options.abi;
this.address = options.address;
this.gas = options.gas;
this.code = '0x' + options.code;
//this.web3 = options.web3 || web3;
this.web3 = options.web3 || window.web3;
this.web3 = options.web3;
if (!this.web3 && typeof (web3) !== 'undefined') {
this.web3 = web3;
} else if (!this.web3) {
this.web3 = window.web3;
}
if (EmbarkJS.isNewWeb3()) {
// TODO:
// add default **from** address
// add gasPrice
if (EmbarkJS.isNewWeb3(this.web3)) {
ContractClass = new this.web3.eth.Contract(this.abi, this.address);
ContractClass.setProvider(this.web3.currentProvider);
ContractClass.options.data = this.code;
ContractClass.options.from = this.from;
ContractClass.abi = ContractClass.options.abi;
ContractClass.address = this.address;
ContractClass.gas = this.gas;
let originalMethods = Object.keys(ContractClass);
ContractClass._jsonInterface.forEach((abi) => {
if (originalMethods.indexOf(abi.name) >= 0) {
console.log(abi.name + " is a reserved word and cannot be used as a contract method, property or event");
return;
}
if (!abi.inputs) {
return;
}
let numExpectedInputs = abi.inputs.length;
if (abi.type === 'function' && abi.constant) {
ContractClass[abi.name] = function() {
let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
if (typeof (arguments[numExpectedInputs]) === 'function') {
cb = arguments[numExpectedInputs];
} else if (typeof (arguments[numExpectedInputs]) === 'object') {
options = arguments[numExpectedInputs];
cb = arguments[numExpectedInputs + 1];
}
let ref = ContractClass.methods[abi.name];
let call = ref.apply(ref, ...arguments).call;
return call.apply(call, []);
};
} else if (abi.type === 'function') {
ContractClass[abi.name] = function() {
let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
if (typeof (arguments[numExpectedInputs]) === 'function') {
cb = arguments[numExpectedInputs];
} else if (typeof (arguments[numExpectedInputs]) === 'object') {
options = arguments[numExpectedInputs];
cb = arguments[numExpectedInputs + 1];
}
let ref = ContractClass.methods[abi.name];
let send = ref.apply(ref, args).send;
return send.apply(send, [options, cb]);
};
} else if (abi.type === 'event') {
ContractClass[abi.name] = function(options, cb) {
let ref = ContractClass.events[abi.name];
return ref.apply(ref, [options, cb]);
}
}
});
return ContractClass;
} else {
ContractClass = this.web3.eth.contract(this.abi);

396
js/embark_node.js Normal file
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@ -0,0 +1,396 @@
var EmbarkJS = {
onReady: function(cb) {
if (typeof (__embarkContext) === 'undefined') {
return cb();
}
return __embarkContext.execWhenReady(cb);
}
};
EmbarkJS.isNewWeb3 = function(web3Obj) {
var _web3 = web3Obj || (new Web3());
if (typeof(_web3.version) === "string") {
return true;
}
return parseInt(_web3.version.api.split('.')[0], 10) >= 1;
};
EmbarkJS.Contract = function(options) {
var self = this;
var i, abiElement;
var ContractClass;
this.abi = options.abi;
this.address = options.address;
this.gas = options.gas;
this.code = '0x' + options.code;
//this.web3 = options.web3 || web3;
this.web3 = options.web3;
if (!this.web3 && typeof (web3) !== 'undefined') {
this.web3 = web3;
} else if (!this.web3) {
this.web3 = window.web3;
}
if (EmbarkJS.isNewWeb3(this.web3)) {
ContractClass = new this.web3.eth.Contract(this.abi, this.address);
ContractClass.setProvider(this.web3.currentProvider);
ContractClass.options.data = this.code;
ContractClass.options.from = this.from;
ContractClass.abi = ContractClass.options.abi;
ContractClass.address = this.address;
ContractClass.gas = this.gas;
let originalMethods = Object.keys(ContractClass);
ContractClass._jsonInterface.forEach((abi) => {
if (originalMethods.indexOf(abi.name) >= 0) {
console.log(abi.name + " is a reserved word and cannot be used as a contract method, property or event");
return;
}
if (!abi.inputs) {
return;
}
let numExpectedInputs = abi.inputs.length;
if (abi.type === 'function' && abi.constant) {
ContractClass[abi.name] = function() {
let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
if (typeof (arguments[numExpectedInputs]) === 'function') {
cb = arguments[numExpectedInputs];
} else if (typeof (arguments[numExpectedInputs]) === 'object') {
options = arguments[numExpectedInputs];
cb = arguments[numExpectedInputs + 1];
}
let ref = ContractClass.methods[abi.name];
let call = ref.apply(ref, ...arguments).call;
return call.apply(call, []);
};
} else if (abi.type === 'function') {
ContractClass[abi.name] = function() {
let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
if (typeof (arguments[numExpectedInputs]) === 'function') {
cb = arguments[numExpectedInputs];
} else if (typeof (arguments[numExpectedInputs]) === 'object') {
options = arguments[numExpectedInputs];
cb = arguments[numExpectedInputs + 1];
}
let ref = ContractClass.methods[abi.name];
let send = ref.apply(ref, args).send;
return send.apply(send, [options, cb]);
};
} else if (abi.type === 'event') {
ContractClass[abi.name] = function(options, cb) {
let ref = ContractClass.events[abi.name];
return ref.apply(ref, [options, cb]);
}
}
});
return ContractClass;
} else {
ContractClass = this.web3.eth.contract(this.abi);
this.eventList = [];
if (this.abi) {
for (i = 0; i < this.abi.length; i++) {
abiElement = this.abi[i];
if (abiElement.type === 'event') {
this.eventList.push(abiElement.name);
}
}
}
var messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
this._originalContractObject = ContractClass.at(this.address);
this._methods = Object.getOwnPropertyNames(this._originalContractObject).filter(function(p) {
// TODO: check for forbidden properties
if (self.eventList.indexOf(p) >= 0) {
self[p] = function() {
var promise = new messageEvents();
var args = Array.prototype.slice.call(arguments);
args.push(function(err, result) {
if (err) {
promise.error(err);
} else {
promise.cb(result);
}
});
self._originalContractObject[p].apply(self._originalContractObject[p], args);
return promise;
};
return true;
} else if (typeof self._originalContractObject[p] === 'function') {
self[p] = function(_args) {
var args = Array.prototype.slice.call(arguments);
var fn = self._originalContractObject[p];
var props = self.abi.find((x) => x.name == p);
var promise = new Promise(function(resolve, reject) {
args.push(function(err, transaction) {
promise.tx = transaction;
if (err) {
return reject(err);
}
var getConfirmation = function() {
self.web3.eth.getTransactionReceipt(transaction, function(err, receipt) {
if (err) {
return reject(err);
}
if (receipt !== null) {
return resolve(receipt);
}
setTimeout(getConfirmation, 1000);
});
};
if (typeof(transaction) !== "string" || props.constant) {
resolve(transaction);
} else {
getConfirmation();
}
});
fn.apply(fn, args);
});
return promise;
};
return true;
}
return false;
});
}
};
EmbarkJS.Contract.prototype.deploy = function(args, _options) {
var self = this;
var contractParams;
var options = _options || {};
contractParams = args || [];
contractParams.push({
from: this.web3.eth.accounts[0],
data: this.code,
gas: options.gas || 800000
});
var contractObject = this.web3.eth.contract(this.abi);
var promise = new Promise(function(resolve, reject) {
contractParams.push(function(err, transaction) {
if (err) {
reject(err);
} else if (transaction.address !== undefined) {
resolve(new EmbarkJS.Contract({
abi: self.abi,
code: self.code,
address: transaction.address
}));
}
});
// returns promise
// deploys contract
// wraps it around EmbarkJS.Contract
contractObject["new"].apply(contractObject, contractParams);
});
return promise;
};
EmbarkJS.Contract.prototype.new = EmbarkJS.Contract.prototype.deploy;
EmbarkJS.Contract.prototype.at = function(address) {
return new EmbarkJS.Contract({ abi: this.abi, code: this.code, address: address });
};
EmbarkJS.Contract.prototype.send = function(value, unit, _options) {
var options, wei;
if (typeof unit === 'object') {
options = unit;
wei = value;
} else {
options = _options || {};
wei = this.web3.toWei(value, unit);
}
options.to = this.address;
options.value = wei;
this.web3.eth.sendTransaction(options);
};
EmbarkJS.Storage = {};
EmbarkJS.Storage.Providers = {};
EmbarkJS.Storage.saveText = function(text) {
if (!this.currentStorage) {
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
}
return this.currentStorage.saveText(text);
};
EmbarkJS.Storage.get = function(hash) {
if (!this.currentStorage) {
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
}
return this.currentStorage.get(hash);
};
EmbarkJS.Storage.uploadFile = function(inputSelector) {
if (!this.currentStorage) {
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
}
return this.currentStorage.uploadFile(inputSelector);
};
EmbarkJS.Storage.getUrl = function(hash) {
if (!this.currentStorage) {
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
}
return this.currentStorage.getUrl(hash);
};
EmbarkJS.Storage.registerProvider = function(providerName, obj) {
EmbarkJS.Storage.Providers[providerName] = obj;
};
EmbarkJS.Storage.setProvider = function(provider, options) {
let providerObj = this.Providers[provider];
if (!providerObj) {
throw new Error('Unknown storage provider');
}
this.currentStorage = providerObj;
return providerObj.setProvider(options);
};
EmbarkJS.Storage.isAvailable = function(){
if (!this.currentStorage) {
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
}
return this.currentStorage.isAvailable();
};
EmbarkJS.Messages = {};
EmbarkJS.Messages.Providers = {};
EmbarkJS.Messages.registerProvider = function(providerName, obj) {
EmbarkJS.Messages.Providers[providerName] = obj;
};
EmbarkJS.Messages.setProvider = function(provider, options) {
let providerObj = this.Providers[provider];
if (!providerObj) {
throw new Error('Unknown messages provider');
}
this.currentMessages = providerObj;
return providerObj.setProvider(options);
};
EmbarkJS.Messages.isAvailable = function(){
return this.currentMessages.isAvailable();
};
EmbarkJS.Messages.sendMessage = function(options) {
if (!this.currentMessages) {
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
}
return this.currentMessages.sendMessage(options);
};
EmbarkJS.Messages.listenTo = function(options, callback) {
if (!this.currentMessages) {
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
}
return this.currentMessages.listenTo(options, callback);
};
EmbarkJS.Names = {};
EmbarkJS.Names.Providers = {};
EmbarkJS.Names.registerProvider = function(providerName, obj) {
EmbarkJS.Names.Providers[providerName] = obj;
}
EmbarkJS.Names.setProvider = function(provider, options) {
let providerObj = this.Providers[provider];
if (!providerObj) {
throw new Error('Unknown name system provider');
}
this.currentNameSystems = providerObj;
return providerObj.setProvider(options);
};
// resolve resolves a name into an identifier of some kind
EmbarkJS.Names.resolve = function(name) {
if (!this.currentNameSystems) {
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
}
return this.currentNameSystems.resolve(name);
}
// the reverse of resolve, resolves using an identifier to get to a name
EmbarkJS.Names.lookup = function(identifier) {
if (!this.currentNameSystems) {
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
}
return this.currentNameSystems.lookup(identifier);
}
// To Implement
/*
// register a name
EmbarkJS.Names.register = function(name, options) {
}
*/
EmbarkJS.Utils = {
fromAscii: function(str) {
var _web3 = new Web3();
return _web3.utils ? _web3.utils.fromAscii(str) : _web3.fromAscii(str);
},
toAscii: function(str) {
var _web3 = new Web3();
return _web3.utils.toAscii(str);
}
};
module.exports = EmbarkJS;

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@ -8,6 +8,8 @@ const cloneDeep = require('clone-deep');
const AccountParser = require('../contracts/accountParser');
const Provider = require('../contracts/provider');
const EmbarkJS = require('../../js/embark_node');
function getSimulator() {
try {
return require('ganache-cli');
@ -241,12 +243,13 @@ class Test {
} else {
data = self.contracts[contractName].options.data;
}
Object.assign(self.contracts[contractName], new self.web3.eth.Contract(contract.abiDefinition, contract.deployedAddress,
{from: self.web3.eth.defaultAccount, gas: 6000000}));
Object.assign(self.contracts[contractName], new EmbarkJS.Contract({abi: contract.abiDefinition, address: contract.deployedAddress, from: self.web3.eth.defaultAccount, gas: 6000000, web3: self.web3}));
self.contracts[contractName].address = contract.deployedAddress;
if (self.contracts[contractName].options) {
self.contracts[contractName].options.from = self.contracts[contractName].options.from || self.web3.eth.defaultAccount;
self.contracts[contractName].options.data = data;
self.contracts[contractName].options.gas = 6000000;
}
eachCb();
}, (err) => {
@ -288,10 +291,10 @@ class Test {
contract = this.engine.contractsManager.contracts[contractNames[0]];
}
}
this.contracts[contractName] = new this.web3.eth.Contract(contract.abiDefinition, contract.address,
{from: this.web3.eth.defaultAccount, gas: 6000000});
this.contracts[contractName] = new EmbarkJS.Contract({abi: contract.abiDefinition, address: contract.address, from: this.web3.eth.defaultAccount, gas: 6000000, web3: this.web3});
this.contracts[contractName].address = contract.address;
this.contracts[contractName].options.data = contract.code;
this.contracts[contractName].options.gas = 6000000;
this.web3.eth.getAccounts().then((accounts) => {
this.contracts[contractName].options.from = contract.from || accounts[0];
});

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@ -40,6 +40,11 @@ contract("AnotherStorage", function() {
assert.equal(result.toString(), SimpleStorage.options.address);
});
it("set SimpleStorage address with alternative syntax", async function() {
let result = await AnotherStorage.simpleStorageAddress();
assert.equal(result.toString(), SimpleStorage.options.address);
});
it('should set the balance correctly', async function () {
const balance = await web3.eth.getBalance(accounts[0]);
assert.ok(balance < 5000000000000000000);