mcp-banka/build/helper.js

Model Context Protocol Server for Turkish Currency and Exchange Rate data from the Central Bank of The Republic of Turkey (TCMB) (TCMB)

import { TcmbApiClient } from "./api.js";
// Create API instance
const tcmbApiClient = new TcmbApiClient();
/**
 * Helper function to parse date parameter
 */
export function parseDateParam(date) {
    let dateObj;
    if (date) {
        dateObj = new Date(date);
        if (isNaN(dateObj.getTime())) {
            throw new Error(`Invalid date format: ${date}. Please use YYYY-MM-DD format.`);
        }
    }
    else {
        // If date not provided, use today
        dateObj = new Date();
    }
    return dateObj;
}
/**
 * Helper function to get exchange rate URL
 */
export async function getExchangeRateUrl(date) {
    try {
        const dateObj = parseDateParam(date);
        const url = tcmbApiClient.generateUrl(dateObj);
        return {
            url,
            source: "Central Bank of The Republic of Turkey (TCMB)",
            baseCurrency: "TRY",
            date: dateObj.toISOString().split('T')[0]
        };
    }
    catch (error) {
        // Handle the specific "Maximum call stack size exceeded" error
        const errorMessage = error instanceof Error ? error.message : String(error);
        const isStackOverflow = errorMessage.includes("Maximum call stack size exceeded");
        throw new Error(errorMessage);
    }
}
export { tcmbApiClient };