@iqai/mcp-fraxlend/dist/services/borrow.js

Mcp server for Fraxlend access

import { FRAXLEND_ABI } from "../lib/fraxlend.abi.js";
export class BorrowService {
    walletService;
    constructor(walletService) {
        this.walletService = walletService;
    }
    async execute({ pairAddress, borrowAmount, collateralAmount, receiver, }) {
        const publicClient = this.walletService.getPublicClient();
        const walletClient = this.walletService.getWalletClient();
        if (!walletClient) {
            throw new Error("Wallet client not initialized");
        }
        const userAddress = walletClient.account?.address;
        if (!userAddress) {
            throw new Error("User address not found");
        }
        const collateralBalance = (await publicClient.readContract({
            address: pairAddress,
            abi: FRAXLEND_ABI,
            functionName: "userCollateralBalance",
            args: [userAddress],
            account: walletClient.account,
        }));
        if (collateralBalance <= 0n) {
            throw new Error("You don't have any collateral to borrow with");
        }
        const { request } = await publicClient.simulateContract({
            address: pairAddress,
            abi: FRAXLEND_ABI,
            functionName: "borrowAsset",
            args: [borrowAmount, collateralAmount, receiver],
            account: walletClient.account,
        });
        const hash = await walletClient.writeContract(request);
        const receipt = await publicClient.waitForTransactionReceipt({ hash });
        return {
            txHash: receipt.transactionHash,
            borrowAmount,
            collateralAmount,
            receiver,
        };
    }
}
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