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