@iqai/mcp-fraxlend/dist/services/remove-collateral.js

Mcp server for Fraxlend access

import { FRAXLEND_ABI } from "../lib/fraxlend.abi.js";
export class RemoveCollateralService {
    walletService;
    constructor(walletService) {
        this.walletService = walletService;
    }
    async execute({ pairAddress, amount, }) {
        const publicClient = this.walletService.getPublicClient();
        const walletClient = this.walletService.getWalletClient();
        if (!walletClient) {
            throw new Error("Wallet client not initialized");
        }
        if (!walletClient.account) {
            throw new Error("Wallet account not initialized");
        }
        const userAddress = walletClient.account.address;
        const collateralBalance = await publicClient.readContract({
            address: pairAddress,
            abi: FRAXLEND_ABI,
            functionName: "userCollateralBalance",
            args: [userAddress],
            account: walletClient.account,
        });
        if (collateralBalance < amount) {
            throw new Error(`Insufficient collateral balance. Available: ${collateralBalance}, Requested: ${amount}`);
        }
        const { request } = await publicClient.simulateContract({
            address: pairAddress,
            abi: FRAXLEND_ABI,
            functionName: "removeCollateral",
            args: [amount, userAddress],
            account: walletClient.account,
        });
        const hash = await walletClient.writeContract(request);
        const receipt = await publicClient.waitForTransactionReceipt({ hash });
        return {
            txHash: receipt.transactionHash,
            amount,
        };
    }
}
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