/// <summary>
/// Makes HttpRequest to mpesa api server
/// </summary>
/// <param name="Dto">Data transfer object</param>
/// <param name="token">Mpesa Accesstoken</param>
/// <param name="Endpoint">Request endpoint</param>
/// <param name="cancellationToken">Cancellation Token</param>
/// <returns>Mpesa API response</returns>
private async Task <string> MpesaHttpRequest(object Dto, string token, string Endpoint, CancellationToken cancellationToken = default)
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, Endpoint)
{
Content = new StringContent(JsonConvert.SerializeObject(Dto).ToString(), Encoding.UTF8, "application/json")
};
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
cancellationToken.ThrowIfCancellationRequested();
HttpResponseMessage response = await _httpclient.SendAsync(request, cancellationToken);
var content = await response.Content.ReadAsStreamAsync();
var data = JSONStreamHelper.DeserializeFromStream(content);
var strData = JsonConvert.SerializeObject(data);
if (response.IsSuccessStatusCode == false)
{
throw new MpesaApiException
{
StatusCode = (int)response.StatusCode,
Content = strData
};
}
return(strData);
}
/// <summary>
/// Method makes the accesstoken request to mpesa api
/// </summary>
/// <param name="consumerKey"></param>
/// <param name="consumerSecret"></param>
/// <param name="requestEndPoint"></param>
/// <param name="cancellationToken">Cancellation Token</param>
/// <returns>string representing accesstoken</returns>
private async Task <string> RequestAccessToken(string consumerKey, string consumerSecret, string requestEndPoint, CancellationToken cancellationToken = default)
{
var keyBytes = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{consumerKey}:{consumerSecret}"));
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestEndPoint);
request.Headers.Authorization = new AuthenticationHeaderValue("Basic", keyBytes);
cancellationToken.ThrowIfCancellationRequested();
var response = await _httpclient.SendAsync(request, cancellationToken);
var content = await response.Content.ReadAsStreamAsync();
var data = JSONStreamHelper.DeserializeFromStream(content);
var strData = JsonConvert.SerializeObject(data);
if (response.IsSuccessStatusCode == false)
{
throw new MpesaApiException
{
StatusCode = (int)response.StatusCode,
Content = strData
};
}
return(JsonConvert.DeserializeObject <TokenResponse>(strData).AccessToken);
}