@kyve/sdk-beta/src/clients/rpc-client/kyve/base/v1beta1/base.ts

<p align="center"> <a href="https://kyve.network"> <img src="https://user-images.githubusercontent.com/62398724/137493477-63868209-a19b-4efa-9413-f06d41197d6d.png" style="border-radius: 50%" height="96"> </a> <h3 align="center"><code>@kyve/sdk</

import { StdFee } from "@cosmjs/amino/build/signdoc";
import { AccountData } from "@cosmjs/amino/build/signer";
import { coins, SigningStargateClient } from "@cosmjs/stargate";
import BigNumber from "bignumber.js";

import { DENOM } from "../../../../../constants";
import { signTx, TxPromise } from "../../../../../utils/helper";

export default class KyveBaseMsg {
  private nativeClient: SigningStargateClient;
  public readonly account: AccountData;

  constructor(client: SigningStargateClient, account: AccountData) {
    this.account = account;
    this.nativeClient = client;
  }

  async transfer(
    recipient: string,
    amount: string,
    options?: {
      fee?: StdFee | "auto" | number;
      memo?: string;
    }
  ) {
    const tx = {
      typeUrl: "/cosmos.bank.v1beta1.MsgSend",
      value: {
        fromAddress: this.account.address,
        toAddress: recipient,
        amount: coins(amount, DENOM),
      },
    };

    return new TxPromise(
      this.nativeClient,
      await signTx(this.nativeClient, this.account.address, tx, options)
    );
  }

  async multiTransfer(recipient: string[], amount: string) {
    const allAmount = new BigNumber(amount).multipliedBy(recipient.length);
    const tx = {
      typeUrl: "/cosmos.bank.v1beta1.MsgMultiSend",
      value: {
        inputs: [
          {
            address: this.account.address,
            coins: coins(allAmount.toString(), DENOM),
          },
        ],
        outputs: recipient.map((address) => ({
          address,
          coins: coins(amount, DENOM),
        })),
      },
    };

    return new TxPromise(
      this.nativeClient,
      await signTx(this.nativeClient, this.account.address, tx)
    );
  }

  async getKyveBalance() {
    const data = await this.nativeClient.getBalance(
      this.account.address,
      DENOM
    );
    return data.amount;
  }
}