Browser Extension

You can get more information in Github

For User

release version, please waiting

dev version

If you are using qq browser,etc, you can add the extention too.

Notice

Using File:/// protocol may can not use the extenstion
// https://developer.chrome.com/extensions/match_patterns
Note: Access to file URLs isn't automatic. The user must visit the extensions management page and opt in to file access for each extension that requests it.

For Dapp Developers

Interaction Flow

  • 1.Make sure the user get the Extension

  • 2.Connect Chain

  • 3.Initialize Contract

  • 4.Call contract methods

How to use

If you need complete data structure. you can click here

Data Format

NightElf = {
histories: [],
keychain: {
keypairs: [
{
name: 'your keypairs name',
address: 'your keypairs address',
mnemonic: 'your keypairs mnemonic',
privateKey: 'your keupairs privateKey',
publicKey: {
x: 'you keupairs publicKey',
y: 'you keupairs publicKey'
}
}
],
permissions: [
{
chainId: 'AELF',
contractAddress: 'contract address',
contractName: 'contract name',
description: 'contract description',
github: 'contract github',
whitelist: {
Approve: {
parameter1: 'a',
parameter2: 'b',
parameter3: 'c'
}
}
}
]
}
}

Demo of Checking the Extension

let nightElfInstance = null;
class NightElfCheck {
constructor() {
const readyMessage = 'NightElf is ready';
let resovleTemp = null;
this.check = new Promise((resolve, reject) => {
if (window.NightElf) {
resolve(readyMessage);
}
setTimeout(() => {
reject({
error: 200001,
message: 'timeout / can not find NightElf / please install the extension'
});
}, 1000);
resovleTemp = resolve;
});
document.addEventListener('NightElf', result => {
console.log('test.js check the status of extension named nightElf: ', result);
resovleTemp(readyMessage);
});
}
static getInstance() {
if (!nightElfInstance) {
nightElfInstance = new NightElfCheck();
return nightElfInstance;
}
return nightElfInstance;
}
}
const nightElfCheck = NightElfCheck.getInstance();
nightElfCheck.check.then(message => {
// connectChain -> Login -> initContract -> call contract methods
});

1.GET_CHAIN_STATUS

You can see the demo ./devDemos/test.html. [demo.js just a draft]

If you want to check Token Transfer Demo. You can click here

The methods calls act the same as the methods call of the aelf-sdk.js

Note: '...' stands for omitted data.

const aelf = new window.NightElf.AElf({
httpProvider: [
'http://192.168.197.56:8101/chain',
null,
null,
null,
[{
name: 'Accept',
value: 'text/plain;v=1.0'
}]
],
appName: 'Test'
});
aelf.chain.getChainStatus((error, result) => {
console.log('>>>>>>>>>>>>> connectChain >>>>>>>>>>>>>');
console.log(error, result);
});
// result = {
// ChainId: "AELF"
// GenesisContractAddress: "61W3AF3Voud7cLY2mejzRuZ4WEN8mrDMioA9kZv3H8taKxF"
// }

2.CALL_AELF_CHAIN

const txid = 'c45edfcca86f4f528cd8e30634fa4ac53801aae05365cfefc3bfe9b652fe5768';
aelf.chain.getTxResult(txid, (err, result) => {
console.log('>>>>>>>>>>>>> getTxResult >>>>>>>>>>>>>');
console.log(err, result);
});
// result = {
// Status: "NotExisted"
// TransactionId: "ff5bcd126f9b7f22bbfd0816324390776f10ccb3fe0690efc84c5fcf6bdd3fc6"
// }

3. LOGIN

aelf.login({
appName: 'hzzTest',
chainId: 'AELF',
payload: {
method: 'LOGIN',
contracts: [{
chainId: 'AELF',
contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
contractName: 'token',
description: 'token contract',
github: ''
}, {
chainId: 'AELF TEST',
contractAddress: '2Xg2HKh8vusnFMQsHCXW1q3vys5JxG5ZnjiGwNDLrrpb9Mb',
contractName: 'TEST contractName',
description: 'contract description',
github: ''
}]
}
}, (error, result) => {
console.log('login>>>>>>>>>>>>>>>>>>', result);
});
// keychain = {
// keypairs: [{
// name: 'your keypairs name',
// address: 'your keypairs address',
// mnemonic: 'your keypairs mnemonic',
// privateKey: 'your keypairs privateKey',
// publicKey: {
// x: 'f79c25eb......',
// y: '7fa959ed......'
// }
// }],
// permissions: [{
// appName: 'hzzTest',
// address: 'your keyparis address',
// contracts: [{
// chainId: 'AELF',
// contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
// contractName: 'token',
// description: 'token contract',
// github: ''
// }],
// domain: 'Dapp domain'
// }]
// }

4.INIT_AELF_CONTRACT

// In aelf-sdk.js wallet is the realy wallet.
// But in extension sdk, we just need the address of the wallet.
const tokenContract;
const wallet = {
address: '2JqnxvDiMNzbSgme2oxpqUFpUYfMjTpNBGCLP2CsWjpbHdu'
};
// It is different from the wallet created by Aelf.wallet.getWalletByPrivateKey();
// There is only one value named address;
aelf.chain.contractAtAsync(
'4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
wallet,
(error, result) => {
console.log('>>>>>>>>>>>>> contractAtAsync >>>>>>>>>>>>>');
console.log(error, result);
tokenContract = result;
}
);
// result = {
// Approve: ƒ (),
// Burn: ƒ (),
// ChargeTransactionFees: ƒ (),
// ClaimTransactionFees: ƒ (),
// ....
// }

5.CALL_AELF_CONTRACT / CALL_AELF_CONTRACT_READONLY

// tokenContract from the contractAsync
tokenContract.GetBalance.call(
{
symbol: 'AELF',
owner: '65dDNxzcd35jESiidFXN5JV8Z7pCwaFnepuYQToNefSgqk9'
},
(err, result) => {
console.log('>>>>>>>>>>>>>>>>>>>', result);
}
);
tokenContract.Approve(
{
symbol: 'AELF',
spender: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
amount: '100'
},
(err, result) => {
console.log('>>>>>>>>>>>>>>>>>>>', result);
}
);
// If you use tokenContract.GetBalance.call this method is only applicable to queries that do not require extended authorization validation.(CALL_AELF_CONTRACT_READONLY)
// If you use tokenContract.Approve this requires extended authorization validation (CALL_AELF_CONTRACT)
// tokenContract.GetBalance.call(payload, (error, result) => {})
// result = {
// symbol: "AELF",
// owner: "65dDNxzcd35jESiidFXN5JV8Z7pCwaFnepuYQToNefSgqk9",
// balance: 0
// }

6.CHECK_PERMISSION

aelf.checkPermission({
appName: 'hzzTest',
type: 'address', // if you did not set type, it aways get by domain.
address: '4WBgSL2fSem9ABD4LLZBpwP8eEymVSS1AyTBCqXjt5cfxXK'
}, (error, result) => {
console.log('checkPermission>>>>>>>>>>>>>>>>>', result);
});
// result = {
// ...,
// permissions:[
// {
// address: '...',
// appName: 'hzzTest',
// contracts: [{
// chainId: 'AELF',
// contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
// contractName: 'token',
// description: 'token contract',
// github: ''
// },
// {
// chainId: 'AELF TEST',
// contractAddress: 'TEST contractAddress',
// contractName: 'TEST contractName',
// description: 'contract description',
// github: ''
// }],
// domian: 'Dapp domain'
// }
// ]
// }

7.SET_CONTRACT_PERMISSION

aelf.setContractPermission({
appName: 'hzzTest',
hainId: 'AELF',
payload: {
address: '2JqnxvDiMNzbSgme2oxpqUFpUYfMjTpNBGCLP2CsWjpbHdu',
contracts: [{
chainId: 'AELF',
contractAddress: 'TEST contractAddress',
contractName: 'AAAA',
description: 'contract description',
github: ''
}]
}
}, (error, result) => {
console.log('>>>>>>>>>>>>>', result);
});
// keychain = {
// keypairs: {...},
// permissions: [{
// appName: 'hzzTest',
// address: 'your keyparis address',
// contracts: [{
// chainId: 'AELF',
// contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
// contractName: 'token',
// description: 'token contract',
// github: '',
// whitelist: {}
// },
// {
// chainId: 'AELF',
// contractAddress: 'TEST contractAddress',
// contractName: 'AAAA',
// description: 'contract description',
// github: ''
// }],
// domain: 'Dapp domain'
// }]
// }

8.REMOVE_CONTRACT_PERMISSION

aelf.removeContractPermission({
appName: 'hzzTest',
chainId: 'AELF',
payload: {
contractAddress: '2Xg2HKh8vusnFMQsHCXW1q3vys5JxG5ZnjiGwNDLrrpb9Mb'
}
}, (error, result) => {
console.log('removeContractPermission>>>>>>>>>>>>>>>>>>>', result);
});
// keychain = {
// keypairs: {...},
// permissions: [{
// appName: 'hzzTest',
// address: 'your keyparis address',
// contracts: [{
// chainId: 'AELF',
// contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
// contractName: 'token',
// description: 'token contract',
// github: ''
// }],
// domain: 'Dapp domain'
// }]
// }

9.REMOVE_METHODS_WHITELIST

aelf.removeMethodsWhitelist({
appName: 'hzzTest',
chainId: 'AELF',
payload: {
contractAddress: '2Xg2HKh8vusnFMQsHCXW1q3vys5JxG5ZnjiGwNDLrrpb9Mb',
whitelist: ['Approve']
}
}, (error, result) => {
console.log('removeWhitelist>>>>>>>>>>>>>>>>>', result);
});
// keychain = {
// keypairs: {...},
// permissions: [{
// appName: 'hzzTest',
// address: 'your keyparis address',
// contracts: [{
// chainId: 'AELF',
// contractAddress: '4rkKQpsRFt1nU6weAHuJ6CfQDqo6dxruU3K3wNUFr6ZwZYc',
// contractName: 'token',
// description: 'token contract',
// github: '',
// whitelist: {}
// }],
// domain: 'Dapp domain'
// }]
// }

For Extension Developers

  1. Download the code

    git clone https://github.com/hzz780/aelf-web-extension.git
  2. Install dependent

    npm install
  3. Run webpack

    webpack -w
  4. Add to the browser

    open development mode, add the webpack output app/public.

Project Information

We use ECDH to use public key to encryt data and private key to decrypt data.