public async Task Login(string request_token)
{
string tokenExchangeEndpoint = $"{this._configuration.GetValue<string>("kiteApiBaseUrl")}{this._configuration.GetValue<string>("kiteAccessTokenUrl")}";
KiteAccessTokenResponseRoot kiteAccessTokenResponseRoot = null;
bool cacheFetchResult = this._cache.TryGetValue <KiteAccessTokenResponseRoot>("kite_access_token", out kiteAccessTokenResponseRoot);
if (!cacheFetchResult)
{
try
{
string accessTokenRequest = $"{this._configuration.GetValue<string>("kiteApiKey")}{request_token}{this._configuration.GetValue<string>("kiteApiSecret")}";
string accessTokenRequestHash = CommonFunctions.ComputeSha256Hash(accessTokenRequest);
var param = new Dictionary <string, dynamic>
{
{ "api_key", this._configuration.GetValue <string>("kiteApiKey") },
{ "request_token", request_token },
{ "checksum", accessTokenRequestHash }
};
string paramString = String.Join("&", param.Select(x => CommonFunctions.BuildParam(x.Key, x.Value)));
HttpContent accessTokenRequestContent = new StringContent(paramString, Encoding.UTF8, "application/x-www-form-urlencoded");
accessTokenRequestContent.Headers.Add("X-Kite-Version", "3");
HttpResponseMessage access_token_response = await this._httpClient.PostAsync(tokenExchangeEndpoint, accessTokenRequestContent);
if (access_token_response.IsSuccessStatusCode)
{
Stream responseStream = await access_token_response.Content.ReadAsStreamAsync();
var respose = new StreamReader(responseStream).ReadToEnd();
kiteAccessTokenResponseRoot = JsonSerializer.Deserialize <KiteAccessTokenResponseRoot>(respose);
MemoryCacheEntryOptions cacheOptions = new MemoryCacheEntryOptions();
cacheOptions.AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddHours(8));
cacheOptions.Priority = CacheItemPriority.NeverRemove;
cacheOptions.RegisterPostEvictionCallback(new PostEvictionDelegate(this.CacheEvictionCallback));
cacheOptions.SetSize(CommonFunctions.GetObjectSize(kiteAccessTokenResponseRoot));
using (ICacheEntry cacheEntry = this._cache.CreateEntry((object)"kite_access_token"))
{
cacheEntry.SetSize(CommonFunctions.GetObjectSize(kiteAccessTokenResponseRoot));
cacheEntry.SetOptions(cacheOptions);
cacheEntry.SetValue(kiteAccessTokenResponseRoot);
}
}
else
{
this._logger.LogError(access_token_response.ReasonPhrase);
}
}
catch (Exception ex)
{
this._logger.LogError(ex.Message);
throw new IntelliTradeException("An error occurred while trying to get access token from Kite.", ex);
}
}
}
public async Task <bool> IsAuthenticated()
{
KiteAccessTokenResponseRoot kiteAccessTokenResponseRoot = null;
bool cacheFetchResult = this._cache.TryGetValue <KiteAccessTokenResponseRoot>("kite_access_token", out kiteAccessTokenResponseRoot);
if ((kiteAccessTokenResponseRoot != null) && cacheFetchResult)
{
return(true);
}
else
{
return(false);
}
}
private void CacheEvictionCallback(object key, object value, EvictionReason reason, object state)
{
if (EvictionReason.Expired == reason)
{
KiteAccessTokenResponseRoot kiteAccessTokenResponseRoot = (KiteAccessTokenResponseRoot)value;
MemoryCacheEntryOptions cacheOptions = new MemoryCacheEntryOptions();
cacheOptions.AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddHours(8));
cacheOptions.Priority = CacheItemPriority.NeverRemove;
cacheOptions.RegisterPostEvictionCallback(new PostEvictionDelegate(this.CacheEvictionCallback));
cacheOptions.SetSize(CommonFunctions.GetObjectSize(kiteAccessTokenResponseRoot));
using (ICacheEntry cacheEntry = this._cache.CreateEntry((object)"kite_access_token"))
{
cacheEntry.SetSize(CommonFunctions.GetObjectSize(kiteAccessTokenResponseRoot));
cacheEntry.SetOptions(cacheOptions);
cacheEntry.SetValue(kiteAccessTokenResponseRoot);
}
}
}
public async Task Logout()
{
KiteAccessTokenResponseRoot kiteAccessTokenResponseRoot = null;
bool cacheFetchResult = this._cache.TryGetValue <KiteAccessTokenResponseRoot>("kite_access_token", out kiteAccessTokenResponseRoot);
if ((kiteAccessTokenResponseRoot != null) && cacheFetchResult)
{
this._cache.Remove("kite_access_token");
var param = new Dictionary <string, dynamic>();
CommonFunctions.AddIfNotNull(param, "api_key", this._configuration.GetValue <string>("kiteApiKey"));
CommonFunctions.AddIfNotNull(param, "access_token", (string)kiteAccessTokenResponseRoot.data.access_token);
string encodedParmas = string.Empty;
foreach (KeyValuePair <string, dynamic> keyValuePair in param)
{
if (string.IsNullOrEmpty(encodedParmas))
{
encodedParmas = CommonFunctions.BuildParam(keyValuePair.Key, keyValuePair.Value);
}
else
{
encodedParmas = encodedParmas + "&" + CommonFunctions.BuildParam(keyValuePair.Key, keyValuePair.Value);
}
}
string kiteLogoutUrl = $"{this._configuration.GetValue<string>("kiteApiBaseUrl")}{this._configuration.GetValue<string>("kiteAccessTokenUrl")}?{encodedParmas}";
this._httpClient.DefaultRequestHeaders.Add("X-Kite-Version", "3");
HttpResponseMessage httpResponseMessage = await this._httpClient.DeleteAsync(kiteLogoutUrl);
if (httpResponseMessage.IsSuccessStatusCode)
{
this._logger.LogInformation("Logout from Kite API Successful.");
}
else
{
this._logger.LogError("Logout from Kite API Unsuccessful.");
}
}
}
