本文整理匯總了TypeScript中@0xproject/web3-wrapper.Web3Wrapper.getProvider方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript Web3Wrapper.getProvider方法的具體用法？TypeScript Web3Wrapper.getProvider怎麽用？TypeScript Web3Wrapper.getProvider使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類@0xproject/web3-wrapper.Web3Wrapper的用法示例。
在下文中一共展示了Web3Wrapper.getProvider方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: _instantiateContractIfExistsAsync
private async _instantiateContractIfExistsAsync(artifact: any, address?: string): Promise<ContractInstance> {
const c = await contract(artifact);
const providerObj = this._web3Wrapper.getProvider();
c.setProvider(providerObj);
const artifactNetworkConfigs = artifact.networks[this.networkId];
let contractAddress;
if (!_.isUndefined(address)) {
contractAddress = address;
} else if (!_.isUndefined(artifactNetworkConfigs)) {
contractAddress = artifactNetworkConfigs.address;
}
if (!_.isUndefined(contractAddress)) {
const doesContractExist = await this.doesContractExistAtAddressAsync(contractAddress);
if (!doesContractExist) {
logUtils.log(`Contract does not exist: ${artifact.contract_name} at ${contractAddress}`);
throw new Error(BlockchainCallErrs.ContractDoesNotExist);
}
}
try {
const contractInstance = _.isUndefined(address) ? await c.deployed() : await c.at(address);
return contractInstance;
} catch (err) {
const errMsg = `${err}`;
logUtils.log(`Notice: Error encountered: ${err} ${err.stack}`);
if (_.includes(errMsg, 'not been deployed to detected network')) {
throw new Error(BlockchainCallErrs.ContractDoesNotExist);
} else {
await errorReporter.reportAsync(err);
throw new Error(BlockchainCallErrs.UnhandledError);
}
}
}示例2: destroy
public destroy() {
this._stopEmittingNetworkConnectionAndUserBalanceStateAsync();
// HACK: stop() is only available on providerEngine instances
const provider = this._web3Wrapper.getProvider();
if (!_.isUndefined((provider as any).stop)) {
(provider as any).stop();
}
}示例3: updateProviderToLedgerAsync
public async updateProviderToLedgerAsync(networkId: number) {
utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
const isU2FSupported = await utils.isU2FSupportedAsync();
if (!isU2FSupported) {
throw new Error('Cannot update providerType to LEDGER without U2F support');
}
// Cache injected provider so that we can switch the user back to it easily
if (_.isUndefined(this._cachedProvider)) {
this._cachedProvider = this._web3Wrapper.getProvider();
this._cachedProviderNetworkId = this.networkId;
}
this._blockchainWatcher.destroy();
delete this._userAddressIfExists;
this._dispatcher.updateUserAddress(undefined); // Clear old userAddress
const provider = new ProviderEngine();
const ledgerWalletConfigs = {
networkId,
ledgerEthereumClientFactoryAsync: ledgerEthereumBrowserClientFactoryAsync,
};
this._ledgerSubprovider = new LedgerSubprovider(ledgerWalletConfigs);
provider.addProvider(this._ledgerSubprovider);
provider.addProvider(new FilterSubprovider());
provider.addProvider(new RedundantRPCSubprovider(configs.PUBLIC_NODE_URLS_BY_NETWORK_ID[networkId]));
provider.start();
this.networkId = networkId;
this._dispatcher.updateNetworkId(this.networkId);
const shouldPollUserAddress = false;
this._web3Wrapper = new Web3Wrapper(provider);
this._blockchainWatcher = new BlockchainWatcher(
this._dispatcher,
this._web3Wrapper,
this.networkId,
shouldPollUserAddress,
);
this._zeroEx.setProvider(provider, this.networkId);
this._blockchainWatcher.startEmittingNetworkConnectionAndUserBalanceState();
this._dispatcher.updateProviderType(ProviderType.Ledger);
}