IBC

import { toChainFormat, toBigNumber } from "@injectivelabs/utils";
import { ChainId, CosmosChainId } from "@injectivelabs/ts-types";
import { MsgTransfer } from "@injectivelabs/sdk-ts/core/modules";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";
import { ChainGrpcBankApi } from "@injectivelabs/sdk-ts/client/chain";
import { MsgBroadcasterWithPk } from "@injectivelabs/sdk-ts/core/tx";
import { makeTimeoutTimestampInNs } from "@injectivelabs/sdk-ts/utils";
import { ChainRestTendermintApi } from "@injectivelabs/sdk-ts/client/chain";

const injectiveChainId = CosmosChainId["Injective"];
const destinationChainId = CosmosChainId["Cosmoshub"];

const endpointsForNetwork = getNetworkEndpoints(Network.Mainnet);

/**
 * 对于 IBC 转账，您需要：
 * 1. Injective 上代币的 IBC denom 哈希
 * 2. 目标链的通道 ID
 *
 * 您可以在 Injective Lists 仓库中找到此信息：
 * https://github.com/InjectiveLabs/injective-lists
 */
const injectiveToCosmosHubChannelId = "channel-1";

/**
 * Injective 上 ATOM 的 IBC denom
 * 格式：ibc/{hash}，其中 hash 由通道和基础 denom 派生
 */
const atomIbcDenom =
  "ibc/C4CFF46FD6DE35CA4CF4CE031E643C8FDC9BA4B99AE598E9B0ED98FE3A2319F9";

/* 格式化转账金额（0.001 ATOM，6 位小数） */
const amount = {
  denom: atomIbcDenom,
  amount: toChainFormat(0.001, 6).toFixed(),
};

const injectiveAddress = "inj...";
const destinationAddress = "cosmos...";
const port = "transfer";
const timeoutTimestamp = makeTimeoutTimestampInNs();

/* 从源链获取最新区块 */
const tendermintRestApi = new ChainRestTendermintApi(endpointsForNetwork.rest);

/* 源链的区块详情 */
const latestBlock = await tendermintRestApi.fetchLatestBlock();
const latestHeight = latestBlock.header.height;
const timeoutHeight = toBigNumber(latestHeight).plus(
  30 // 默认区块超时高度
);

/* 以 proto 格式创建消息 */
const msg = MsgTransfer.fromJSON({
  port,
  memo: `从 ${injectiveChainId} 到 ${destinationChainId} 的 IBC 转账`,
  sender: injectiveAddress,
  receiver: destinationAddress,
  channelId: injectiveToCosmosHubChannelId,
  timeout: timeoutTimestamp,
  height: {
    revisionHeight: timeoutHeight.toNumber(),
    revisionNumber: parseInt(latestBlock.header.version.block, 10),
  },
  amount,
});

const privateKey = "0x...";

/* 广播交易 */
const txHash = await new MsgBroadcasterWithPk({
  privateKey,
  network: Network.Mainnet,
}).broadcast({
  msgs: msg,
});

console.log(txHash);