Wasm

wasm 模块是与部署在 injective 链上的 wasm 智能合约交互的核心，您可以在这里找到部署在 Injective 链上的智能合约列表。

MsgUpdateCode 和 MsgStoreCode 不被以太坊（如 Metamask）钱包支持。

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消息

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MsgExecuteContract (Transfer)

此消息用于执行合约函数，下面我们将使用 CW20 规范 的 transfer 消息作为示例。

import { Network } from "@injectivelabs/networks";
import { MsgBroadcasterWithPk } from "@injectivelabs/sdk-ts/core/tx";
import { MsgExecuteContract } from "@injectivelabs/sdk-ts/core/modules";

const injectiveAddress = "inj1...";
const recipientAddress = "inj2...";
const contractAddress = "cw...";

const msg = MsgExecuteContract.fromJSON({
  contractAddress,
  sender: injectiveAddress,
  exec: {
    action: "transfer",
    msg: {
      recipient: recipientAddress,
      amount: 100000,
    },
  },
});

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

console.log(txHash);

​

MsgExecuteContract (funds 示例)

在某些场景中，根据智能合约的函数，我们必须将代币转移到智能合约，按照 cosmwasm 惯例，我们使用 funds 字段将代币从用户的 bank 模块转移到智能合约。

以下是使用 test 合约函数发送 MsgExecuteContract 的示例。

import { Network } from "@injectivelabs/networks";
import { toChainFormat } from "@injectivelabs/utils";
import { MsgBroadcasterWithPk } from "@injectivelabs/sdk-ts/core/tx";
import { MsgExecuteContract } from "@injectivelabs/sdk-ts/core/modules";

const injectiveAddress = "inj1...";
const contractAddress = "cw...";

const msg = MsgExecuteContract.fromJSON({
  contractAddress,
  sender: injectiveAddress,
  exec: {
    action: "test",
    funds: [
      {
        denom: "inj",
        amount: toChainFormat(1).toFixed(),
      },
    ],
  },
});

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

console.log(txHash);

​

MsgExecuteContractCompat

在前面的示例中，使用 EIP712 解析 funds 数组和 msgs 对象存在一些兼容性问题。由于 MsgExecuteContract 无法正确转换为 EIP712 然后由以太坊钱包签名，我们引入了完全兼容 EIP712 的 MsgExecuteContractCompat。

注意： MsgExecuteContract 和 MsgExecuteContractCompat 的底层消息是相同的。MsgExecuteContractCompat 只是兼容 EIP712。

以下是使用 test 合约函数发送 MsgExecuteContractCompact 的示例。

import { Network } from "@injectivelabs/networks";
import { toChainFormat } from "@injectivelabs/utils";
import { MsgBroadcasterWithPk } from "@injectivelabs/sdk-ts/core/tx";
import { MsgExecuteContractCompat } from "@injectivelabs/sdk-ts/core/modules";

const injectiveAddress = "inj1...";
const contractAddress = "cw...";

const msg = MsgExecuteContractCompat.fromJSON({
  contractAddress,
  sender: injectiveAddress,
  exec: {
    action: "test",
    funds: [
      {
        denom: "inj",
        amount: toChainFormat(1).toFixed(),
      },
    ],
  },
});

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

console.log(txHash);