1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
import * as Web3 from 'web3';
import { Token } from './types';
export class TokenRegWrapper {
private _tokenReg: Web3.ContractInstance;
constructor(tokenRegContractInstance: Web3.ContractInstance) {
this._tokenReg = tokenRegContractInstance;
}
public addTokenAsync(token: Token, from: string) {
const tx = this._tokenReg.addToken(
token.address,
token.name,
token.symbol,
token.decimals,
token.ipfsHash,
token.swarmHash,
{ from },
);
return tx;
}
public async getTokenMetaDataAsync(tokenAddress: string) {
const data = await this._tokenReg.getTokenMetaData(tokenAddress);
const token: Token = {
address: data[0],
name: data[1],
symbol: data[2],
decimals: data[3].toNumber(),
ipfsHash: data[4],
swarmHash: data[5],
};
return token;
}
public async getTokenByNameAsync(tokenName: string) {
const data = await this._tokenReg.getTokenByName(tokenName);
const token: Token = {
address: data[0],
name: data[1],
symbol: data[2],
decimals: data[3].toNumber(),
ipfsHash: data[4],
swarmHash: data[5],
};
return token;
}
public async getTokenBySymbolAsync(tokenSymbol: string) {
const data = await this._tokenReg.getTokenBySymbol(tokenSymbol);
const token: Token = {
address: data[0],
name: data[1],
symbol: data[2],
decimals: data[3].toNumber(),
ipfsHash: data[4],
swarmHash: data[5],
};
return token;
}
}
|
