evm-blockchain-tools/src/services/erc20-service.ts

This is a collection of resuseable tools to support development for EVM-powered blockchains

import { ContractService } from "./contract-service";
import { ERC20ContractModel } from "../models/erc20-contract-model";
import { TransactionResponse } from "../common/interfaces";

export class ERC20Service extends ContractService<ERC20ContractModel> {
  public static TRANSFER_FN_SIG = "transfer()";

  constructor(protected contract: ERC20ContractModel) {
    super(contract);
  }

  public async balanceOf(address: string): Promise<string> {
    const bn = await this.contract.balanceOf(address);

    return bn.toString();
  }

  public async transfer(
    address: string,
    amount: string
  ): Promise<TransactionResponse> {
    const tx = await this.contract.transfer(address, amount);

    return tx.wait();
  }

  public async mint(address: string, amount: string): Promise<void> {
    const tx = await this.contract.mint(address, amount);

    await tx.wait();
  }

  public async burn(amount: string): Promise<void> {
    const tx = await this.contract.burn(amount);

    await tx.wait();
  }

  public async burnFrom(address: string, amount: string): Promise<void> {
    const tx = await this.contract.burnFrom(address, amount);

    await tx.wait();
  }
}