@vechain/connex
Version:
Standard interface to connect DApp with VeChain and user
103 lines • 7.06 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
/* eslint-disable @typescript-eslint/no-unused-vars */
import { DriverNoVendor, SimpleNet } from '@vechain/connex-driver';
import { blake2b256 } from 'thor-devkit';
/** the LazyDriver implements vendor methods at construction but allows attaching NoVendorDriver later to be a full one*/
export class LazyDriver {
constructor(signer) {
this.signer = signer;
this._driver = null;
}
get noVendor() {
if (!this._driver) {
throw new Error('thor driver is not ready');
}
return this._driver;
}
setNoVendor(driver) {
this._driver = driver;
}
get genesis() {
return this.noVendor.genesis;
}
get head() {
return this.noVendor.head;
}
pollHead() {
return this.noVendor.pollHead();
}
getBlock(revision) {
return this.noVendor.getBlock(revision);
}
getTransaction(id, allowPending) {
return this.noVendor.getTransaction(id, allowPending);
}
getReceipt(id) {
return this.noVendor.getReceipt(id);
}
getAccount(addr, revision) {
return this.noVendor.getAccount(addr, revision);
}
getCode(addr, revision) {
return this.noVendor.getCode(addr, revision);
}
getStorage(addr, key, revision) {
return this.noVendor.getStorage(addr, key, revision);
}
explain(arg, revision, cacheHints) {
return this.noVendor.explain(arg, revision, cacheHints);
}
filterEventLogs(arg) {
return this.noVendor.filterEventLogs(arg);
}
filterTransferLogs(arg) {
return this.noVendor.filterTransferLogs(arg);
}
signTx(msg, options) {
return __awaiter(this, void 0, void 0, function* () {
return this.signer.then(b => b.signTx(msg, options));
});
}
signCert(msg, options) {
return __awaiter(this, void 0, void 0, function* () {
return this.signer.then(b => b.signCert(msg, options));
});
}
}
const cache = {};
/**
* create a no vendor driver
* @param node the url of thor node
* @param genesis the enforced genesis block
*/
export function createNoVendor(node, genesis) {
const key = blake2b256(JSON.stringify({
node,
genesis
})).toString('hex');
let driver = cache[key];
if (!driver) {
cache[key] = driver = new DriverNoVendor(new SimpleNet(node), genesis);
}
return driver;
}
/**
* create a full driver
* @param node the url of thor node
* @param genesis the enforced genesis block
* @param newSigner a function to create signer
*/
export function createFull(node, genesis, newSigner) {
const driver = new LazyDriver(newSigner(genesis.id));
driver.setNoVendor(createNoVendor(node, genesis));
return driver;
}
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