sei-agent-kit/dist/src/utils/useSeiBridge.js

A package for building AI agents on the SEI blockchain

import { toHex } from 'viem';
import { ethers } from 'ethers';
export const WASM_PRECOMPILE_ADDRESS = '0x0000000000000000000000000000000000001002';
export const WASM_PRECOMPILE_ABI = [
    {
        inputs: [
            { internalType: 'string', name: 'contractAddress', type: 'string' },
            { internalType: 'bytes', name: 'msg', type: 'bytes' },
            { internalType: 'bytes', name: 'coins', type: 'bytes' }
        ],
        name: 'execute',
        outputs: [{ internalType: 'bytes', name: 'response', type: 'bytes' }],
        stateMutability: 'payable',
        type: 'function'
    },
    {
        inputs: [
            {
                components: [
                    { internalType: 'string', name: 'contractAddress', type: 'string' },
                    { internalType: 'bytes', name: 'msg', type: 'bytes' },
                    { internalType: 'bytes', name: 'coins', type: 'bytes' }
                ],
                internalType: 'struct IWasmd.ExecuteMsg[]',
                name: 'executeMsgs',
                type: 'tuple[]'
            }
        ],
        name: 'execute_batch',
        outputs: [{ internalType: 'bytes[]', name: 'responses', type: 'bytes[]' }],
        stateMutability: 'payable',
        type: 'function'
    },
    {
        inputs: [
            { internalType: 'uint64', name: 'codeID', type: 'uint64' },
            { internalType: 'string', name: 'admin', type: 'string' },
            { internalType: 'bytes', name: 'msg', type: 'bytes' },
            { internalType: 'string', name: 'label', type: 'string' },
            { internalType: 'bytes', name: 'coins', type: 'bytes' }
        ],
        name: 'instantiate',
        outputs: [
            { internalType: 'string', name: 'contractAddr', type: 'string' },
            { internalType: 'bytes', name: 'data', type: 'bytes' }
        ],
        stateMutability: 'payable',
        type: 'function'
    },
    {
        inputs: [
            { internalType: 'string', name: 'contractAddress', type: 'string' },
            { internalType: 'bytes', name: 'req', type: 'bytes' }
        ],
        name: 'query',
        outputs: [{ internalType: 'bytes', name: 'response', type: 'bytes' }],
        stateMutability: 'view',
        type: 'function'
    }
];
export async function seiBridge({ agent, executeMsg, fundsMsg, chainConfig, amount, onSubmitTx, }) {
    const encodedExecuteMsg = toHex(JSON.stringify(executeMsg));
    const encodedFundsMsg = fundsMsg
        ? toHex(JSON.stringify(fundsMsg))
        : toHex(JSON.stringify([]));
    // Initialize provider using the chain's EVM RPC URL
    const provider = new ethers.providers.JsonRpcProvider({ url: chainConfig.evmRpcUrl, skipFetchSetup: true });
    const privateKey = process.env.SEI_PRIVATE_KEY;
    let signer = new ethers.Wallet(privateKey, provider);
    // Create a contract instance
    const contractInterface = new ethers.utils.Interface(WASM_PRECOMPILE_ABI);
    const contract = new ethers.Contract(WASM_PRECOMPILE_ADDRESS, contractInterface, signer);
    // Call the execute function
    const tx = await contract.execute(chainConfig.contractAddress, encodedExecuteMsg, encodedFundsMsg, { value: amount ? ethers.utils.parseEther(amount) : undefined });
    const receipt = await tx.wait();
    const hash = receipt.transactionHash;
    if (onSubmitTx) {
        onSubmitTx(hash);
    }
    return hash;
}
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