67 lines
2.2 KiB
TypeScript
67 lines
2.2 KiB
TypeScript
import { Web3Wrapper } from '@0xproject/web3-wrapper';
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import { Provider } from 'ethereum-types';
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import { TokenRegistryContract } from '../../generated_contract_wrappers/token_registry';
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import { Token } from './types';
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import { constants } from './constants';
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export class TokenRegWrapper {
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private _tokenReg: TokenRegistryContract;
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private _web3Wrapper: Web3Wrapper;
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constructor(tokenRegContract: TokenRegistryContract, provider: Provider) {
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this._tokenReg = tokenRegContract;
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this._web3Wrapper = new Web3Wrapper(provider);
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}
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public async addTokenAsync(token: Token, from: string): Promise<string> {
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const txHash = await this._tokenReg.addToken.sendTransactionAsync(
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token.address as string,
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token.name,
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token.symbol,
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token.decimals,
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token.ipfsHash,
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token.swarmHash,
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{ from },
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);
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await this._web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
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return txHash;
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}
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public async getTokenMetaDataAsync(tokenAddress: string): Promise<Token> {
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const data = await this._tokenReg.getTokenMetaData.callAsync(tokenAddress);
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const token: Token = {
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address: data[0],
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name: data[1],
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symbol: data[2],
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decimals: data[3],
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ipfsHash: data[4],
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swarmHash: data[5],
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};
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return token;
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}
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public async getTokenByNameAsync(tokenName: string): Promise<Token> {
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const data = await this._tokenReg.getTokenByName.callAsync(tokenName);
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const token: Token = {
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address: data[0],
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name: data[1],
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symbol: data[2],
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decimals: data[3],
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ipfsHash: data[4],
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swarmHash: data[5],
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};
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return token;
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}
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public async getTokenBySymbolAsync(tokenSymbol: string): Promise<Token> {
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const data = await this._tokenReg.getTokenBySymbol.callAsync(tokenSymbol);
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const token: Token = {
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address: data[0],
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name: data[1],
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symbol: data[2],
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decimals: data[3],
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ipfsHash: data[4],
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swarmHash: data[5],
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};
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return token;
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}
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}
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