Hello,
I created a number of APIs as I just signed up to VISA developer account and trying to get my first API tested.
I created a FOREIGN EXCHANGE RATES API and in the API reference in this page below, I am trying to test the POST in my C# Swagger API
https://developer.visa.com/capabilities/foreign_exchange/reference#tag/Foreign-Exchange-Rates-API/op...
but getting BAD REQUEST, my simple code is below
2. Secondly, I downloaded the sample C# in my DASHBOARD >> GENERAL ASSESTS ( below) and updated with my userID, password and digital cert and again getting bad request
My code is below
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using System;
using System.IO;
using System.Net;
using System.Text;
using System.Security.Cryptography.X509Certificates;
using System.Security.Cryptography;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
namespace HelloWorld
{
class Program
{
public static string visaUrl = "https://sandbox.api.visa.com/";
public static string userId = "xxxxxxxxxxxxxxxx";
public static string password = "xxxxxxxxxxxxxxxxxxxxxxxxxx";
public static string cert = "C:\\Users\\User\\Downloads\\cert.pem";
public static string certPassword = "mypassword";
static void Main(string[] args)
{
Console.WriteLine("START Sample Code for Two-Way (Mutual) SSL!");
Program program = new Program();
program.DoMutualAuthCall("vdp/helloworld", "GET", null, null, null);
Console.WriteLine("END Sample Code for Two-Way (Mutual) SSL!");
}
private void LogRequest(string url, string requestBody)
{
Debug.WriteLine(url);
Debug.WriteLine(requestBody);
}
private void LogResponse(string info, HttpWebResponse response)
{
string responseBody;
Debug.WriteLine(info);
Debug.WriteLine("Response Status: \n" + response.StatusCode);
Debug.WriteLine("Response Headers: \n" + response.Headers.ToString());
using (var reader = new StreamReader(response.GetResponseStream(), ASCIIEncoding.ASCII))
{
responseBody = reader.ReadToEnd();
}
Debug.WriteLine("Response Body: \n" + responseBody);
}
private string GetBasicAuthHeader(string userId, string password)
{
string authString = userId + ":" + password;
var authStringBytes = Encoding.UTF8.GetBytes(authString);
string authHeaderString = Convert.ToBase64String(authStringBytes);
return "Basic " + authHeaderString;
}
public string DoMutualAuthCall(string path, string method, string testInfo, string requestBodyString, Dictionary<string, string> headers = null)
{
string requestURL = visaUrl + path;
string certificatePath = cert;
string certificatePassword = certPassword;
string statusCode = "";
LogRequest(requestURL, requestBodyString);
// Create the POST request object
HttpWebRequest request = WebRequest.Create(requestURL) as HttpWebRequest;
request.ContentType = "application/json";
request.Accept = "application/json";
request.Method = method;
if (method.Equals("POST") || method.Equals("PUT"))
{
// Load the body for the post request
var requestStringBytes = Encoding.UTF8.GetBytes(requestBodyString);
request.GetRequestStream().Write(requestStringBytes, 0, requestStringBytes.Length);
}
if (headers != null)
{
foreach (KeyValuePair<string, string> header in headers)
{
request.Headers[header.Key] = header.Value;
}
}
// Add headers
request.Headers["Authorization"] = GetBasicAuthHeader(userId, password);
// Add certificate
var certificate = new X509Certificate2(certificatePath, certificatePassword);
request.ClientCertificates.Add(certificate);
try
{
// Make the call
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
LogResponse(testInfo, response);
statusCode = response.StatusCode.ToString();
}
}
catch (WebException e)
{
if (e.Response is HttpWebResponse)
{
HttpWebResponse response = (HttpWebResponse)e.Response;
LogResponse(testInfo, response);
statusCode = response.StatusCode.ToString();
}
}
return statusCode;
}
}
}
SWAGGER API IS BELOW
Documentation can be found here
https://developer.visa.com/capabilities/foreign_exchange/reference#tag/Foreign-Exchange-Rates-API/op...
[HttpPost]
[Route("ForeignExchangeRatesAPI")]
public async Task<IActionResult> ForeignExchangeRatesAPI()
{
try
{
// Visa API Endpoint
Uri apiUrl = new Uri("https://sandbox.api.visa.com/forexrates/v2/foreignexchangerates");
// JSON Payload
var payLoad = new
{
initiatingPartyId = 1002,
rateProductCode = "BANK",
destinationCurrencyCode = "USD",
sourceCurrencyCode = "EUR",
quoteIdRequired = true
};
// Convert payload to JSON
string jsonPayload = JsonConvert.SerializeObject(payLoad);
var content = new StringContent(jsonPayload, Encoding.UTF8, "application/json");
// Add authentication headers (API Key or other method)
// _httpClient.DefaultRequestHeaders.Add("Authorization", "Bearer YOUR_ACCESS_TOKEN");
// Make HTTP POST request
HttpResponseMessage response = await _httpClient.PostAsync(apiUrl, content);
// Read response
string responseString = await response.Content.ReadAsStringAsync();
if (response.IsSuccessStatusCode)
{
return Ok(JsonConvert.DeserializeObject(responseString));
}
else
{
return BadRequest($"Error: {response.StatusCode}, Details: {responseString}");
}
}
catch (Exception ex)
{
return StatusCode(500, $"Internal Server Error: {ex.Message}");
}
}
