@0xfacet/sdk/dist/esm/utils/getFctMintRate.js

A toolkit for Facet blockchain integration.

import { createPublicClient, http } from "viem";
import { L2_L1_BLOCK_CONTRACT } from "../constants/addresses";
import { facetMainnet, facetSepolia } from "../viem";
/**
 * Retrieves the current FCT mint rate from the L1 block contract.
 *
 * @param l1ChainId - The chain ID of the L1 network (1 for Ethereum mainnet, 11155111 for Sepolia testnet)
 * @returns A Promise that resolves to the current FCT mint rate as a bigint
 */
export const getFctMintRate = async (l1ChainId) => {
    if (l1ChainId !== 1 && l1ChainId !== 11155111) {
        throw new Error("Invalid chain id");
    }
    const facetPublicClient = createPublicClient({
        chain: l1ChainId === 1 ? facetMainnet : facetSepolia,
        transport: http(),
    });
    const fctMintRate = await facetPublicClient.readContract({
        address: L2_L1_BLOCK_CONTRACT,
        abi: [
            {
                inputs: [],
                name: "fctMintRate",
                outputs: [
                    {
                        internalType: "uint128",
                        name: "",
                        type: "uint128",
                    },
                ],
                stateMutability: "view",
                type: "function",
            },
        ],
        functionName: "fctMintRate",
    });
    return fctMintRate;
};