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client.js
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client.js
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/* eslint no-console:"off" */
const path = require('path');
const onExit = require('death');
const { enums } = require('@arcblock/forge-proto');
const { RpcClient } = require('@arcblock/grpc-client');
const { parse: parseConfig } = require('@arcblock/forge-config');
const client = new RpcClient(parseConfig(path.resolve(__dirname, './forge.toml')));
const debug = (...args) => {
console.log('');
console.log('-'.repeat(80));
console.log('');
console.log(...args);
};
// Because creating an wallet is asynchronous we need to add some delay to retrieve user info
const delay = (timeout = 5000) => new Promise(resolve => setTimeout(resolve, timeout));
const random = prefix => `${prefix}_${Math.round(Math.random() * 1000000)}`;
debug('Supported RPC methods', Object.keys(client.listRpcMethods()));
debug('Supported Tx methods', client.listTxMethods());
const getAccountState = address => {
const account = client.getAccountState([{ address }]);
account.on('data', data => {
debug(`accountInfo.${address}`, data.$format().state);
});
};
(async () => {
try {
// ChainRpc
const res = await client.getChainInfo();
debug('chainInfo', res.$format());
// Subscribe: listen for new blocks
let topic = '';
client
.subscribe({ type: enums.TopicType.END_BLOCK, filter: '' })
.on('error', console.error)
.on('data', function(res) {
if (res.topic) {
console.log(`Subscribe success, topic: ${res.topic}`);
console.log('Waiting for new blocks...');
topic = res.topic;
return;
}
if (res.endBlock && res.endBlock.height) {
client
.getBlock(res.endBlock)
.on('data', res => {
const { block } = res.$format();
debug('Streaming.blockInfo:', block);
})
.on('error', console.error);
}
});
onExit(async () => {
if (topic) {
console.log('Unsubscribing...');
await client.unsubscribe({ topic });
process.exit();
}
});
// WalletRpc
const walletType = {
pk: enums.KeyType.SECP256K1,
hash: enums.HashType.KECCAK,
address: enums.EncodingType.BASE16,
};
const sender = await client.createWallet({
passphrase: '123456',
moniker: random('wangshijun'),
type: walletType,
});
await delay();
getAccountState(sender.wallet.address);
const receiver = await client.createWallet({
passphrase: '123456',
moniker: random('tyrchen'),
type: walletType,
});
await delay();
getAccountState(receiver.wallet.address);
// Send transaction the easy way
const hash = await client.sendTransferTx({
from: sender.wallet.address,
token: sender.token,
itx: {
to: receiver.wallet.address,
value: client.fromTokenToUnit(20),
},
});
debug('txInfo.sent.oneShot', { hash });
await delay();
getAccountState(sender.wallet.address);
} catch (err) {
console.error('error', err);
}
})();