using System;
using System.Net.Http;
using System.Threading.Tasks;

public class ShabanicAPI {
    public static async Task<string> GetBankAccountInfo(string accountNumber, string bankCode, string apiKey) {
        using (var client = new HttpClient()) {
            var url = $"https://shabanic.ir/api/v1/bank_account_info?account_number={accountNumber}&bank_code={bankCode}";
            var request = new HttpRequestMessage(HttpMethod.Post, url);
            request.Headers.Add("SHABANIC-API-KEY", apiKey);
            var response = await client.SendAsync(request);
            return await response.Content.ReadAsStringAsync();
        }
    }
}