private void InterceptResponse(object sender, HttpClientInterceptorEventArgs e)
{
string message = string.Empty;
if (!e.Response.IsSuccessStatusCode)
{
var statusCode = e.Response.StatusCode;
switch (statusCode)
{
case HttpStatusCode.NotFound:
_navManager.NavigateTo("/404");
message = "The requested resorce was not found.";
break;
case HttpStatusCode.Unauthorized:
_navManager.NavigateTo("/unauthorized");
message = "User is not authorized";
break;
default:
_navManager.NavigateTo("/500");
message = "Something went wrong, please contact Administrator";
break;
}
throw new HttpResponseException(message);
}
}
private void InterceptResponse(object sender, HttpClientInterceptorEventArgs e)
{
string message = string.Empty;
if (e.Response.IsSuccessStatusCode == false)
{
var responseCode = e.Response.StatusCode;
switch (responseCode)
{
case HttpStatusCode.NotFound:
_navManager.NavigateTo("/404");
message = "The requested resource was not found.";
break;
case HttpStatusCode.Unauthorized:
case HttpStatusCode.Forbidden:
_navManager.NavigateTo("/unauthorized");
message = "You are not authorized to access this resource.";
break;
default:
_navManager.NavigateTo("/500");
message = "Something went wrong, please contact the administrator.";
break;
}
}
// throw new HttpRequestException(message);
}
public async Task InterceptBeforeHttpAsync(object sender, HttpClientInterceptorEventArgs e)
{
var absPath = e.Request.RequestUri.AbsolutePath;
if (!absPath.Contains("token") && !absPath.Contains("accounts"))
{
try
{
var token = await _authenticationManager.TryRefreshToken();
if (!string.IsNullOrEmpty(token))
{
_snackBar.Add(_localizer["Refreshed Token."], Severity.Success);
e.Request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
_snackBar.Add(_localizer["You are Logged Out."], Severity.Error);
await _authenticationManager.Logout();
_navigationManager.NavigateTo("/");
}
}
}
private async Task HttpClientInterceptor_AfterSendAsync(object sender, HttpClientInterceptorEventArgs e)
{
Console.WriteLine("HttpClientInterceptor.AfterSendAsync-1");
await Task.Delay(3000);
Console.WriteLine("HttpClientInterceptor.AfterSendAsync-2");
}
private void HandleResponse(object sender, HttpClientInterceptorEventArgs e)
{
if (e.Response == null)
{
_navManager.NavigateTo("/error");
throw new HttpResponseException("Server not available");
}
var message = "";
if (!e.Response.IsSuccessStatusCode)
{
switch (e.Response.StatusCode)
{
case HttpStatusCode.NotFound:
_navManager.NavigateTo("/404");
message = "Resource not found.";
break;
case HttpStatusCode.Unauthorized:
_navManager.NavigateTo("/unauthorized");
message = "Unauthorized access";
break;
default:
_navManager.NavigateTo("/error");
message = "Something went wrong. Please contact the administrator.";
break;
}
throw new HttpResponseException(message);
}
}
private async Task HttpClientInterceptor_BeforeSendAsync(object sender, HttpClientInterceptorEventArgs e)
{
Console.WriteLine("HttpClientInterceptor.BeforeSendAsync-1");
var sampleTextB = await this.HttpClient.GetStringAsync("content/sample-text-B.txt");
Console.WriteLine($"Sample Text B: {sampleTextB}");
Console.WriteLine("HttpClientInterceptor.BeforeSendAsync-2");
}
public async Task InterceptAfterHttpAsync(object sender, HttpClientInterceptorEventArgs e)
{
if (e.Response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
await _authService.Logout();
}
else if (e.Response.StatusCode == System.Net.HttpStatusCode.ExpectationFailed)
{
await _authService.ClearLocalStorage();
await _jsRuntime.InvokeVoidAsync("showModalUnauthorized");
}
}
public async Task InterceptBeforeHttpAsync(object sender, HttpClientInterceptorEventArgs e)
{
var absPath = e.Request.RequestUri.AbsolutePath;
if (!absPath.Contains("Usuario"))
{
var token = await _refreshTokenService.TryRefreshToken();
if (!string.IsNullOrEmpty(token))
{
e.Request.Headers.Authorization = new AuthenticationHeaderValue("bearer", token);
}
}
}
private async Task InterceptBeforeSendAsync(object sender, HttpClientInterceptorEventArgs e)
{
var absolutePath = e.Request.RequestUri.AbsolutePath;
//does the path contain the token or account info. . If not then refresh token.
if (!absolutePath.Contains("token") && !absolutePath.Contains("account"))
{
var token = await _refreshTokenService.TryRefreshToken();
if (!string.IsNullOrEmpty(token))
{
e.Request.Headers.Authorization = new AuthenticationHeaderValue("bearer", token);
}
}
}
public async Task InterceptBeforeHttpAsync(object sender, HttpClientInterceptorEventArgs e)
{
var absolutePath = e.Request.RequestUri.AbsolutePath;
e.Request.Headers.TryAddWithoutValidation("Access-Control-Allow-Origin", "*");
if (!absolutePath.Contains("identity/") ||
absolutePath.Contains("identity/logout") || absolutePath.Contains("identity/registration"))
{
var token = await _tokenService.TryRefreshTokenAsync <LoginModel>();
if (!string.IsNullOrWhiteSpace(token))
{
e.Request.Headers.Authorization = new AuthenticationHeaderValue("bearer", token);
}
}
}
private static async Task OnAfterSendAsync(object sender, HttpClientInterceptorEventArgs args)
{
Console.WriteLine("AfterSend event of HttpClientInterceptor");
Console.WriteLine($" - {args.Request.Method} {args.Request.RequestUri}");
Console.WriteLine($" - HTTP Status {args.Response?.StatusCode}");
var capturedContent = await args.GetCapturedContentAsync();
Console.WriteLine($" - Content Headers");
foreach (var headerText in capturedContent.Headers.Select(h => $"{h.Key}: {string.Join(", ", h.Value)}"))
{
Console.WriteLine($" - {headerText}");
}
var httpContentString = await capturedContent.ReadAsStringAsync();
Console.WriteLine($" - HTTP Content \"{httpContentString}\"");
}
private void HandleResponse(object sender, HttpClientInterceptorEventArgs e)
{
if (e.Response == null)
{
_navManager.NavigateTo("/error");
throw new HttpResponseException("Server Not Available");
}
var message = "";
//Message switch case for custom messages
if (!e.Response.IsSuccessStatusCode)
{
//Switch case for selecting the correct error to display.
//default to 404 if none are matched before
switch (e.Response.StatusCode)
{
case HttpStatusCode.NotFound:
_navManager.NavigateTo("/404");
message = "Resource not found.";
break;
case HttpStatusCode.BadRequest:
message = "Invalid request. Please try again.";
_toastService.ShowError(message);
break;
case HttpStatusCode.Unauthorized:
_navManager.NavigateTo("/unauthorized");
message = "Unauthorized access";
break;
default:
_navManager.NavigateTo("/404");
message = "Something went wrong :( unlucky. Please contact the administrator.";
break;
}
throw new HttpResponseException(message);
}
}
private void Interceptor_AfterSend(object sender, HttpClientInterceptorEventArgs e)
{
if (e.Response is null)
{
navigationManager.NavigateTo("/error");
throw new HttpResponseException("Server not available");
}
var message = "";
if (!e.Response.IsSuccessStatusCode)
{
switch (e.Response.StatusCode)
{
case System.Net.HttpStatusCode.Unauthorized:
navigationManager.NavigateTo("/404");
message = "Resource not found";
break;
case System.Net.HttpStatusCode.NotFound:
navigationManager.NavigateTo("/unauthorized");
message = "Unauthorized access";
break;
case System.Net.HttpStatusCode.BadRequest:
message = "Invalid request. Please try again";
toastService.ShowError(message);
break;
default:
navigationManager.NavigateTo("/error");
message = "Something was wrong. Please contact the administrator";
break;
}
throw new HttpResponseException(message);
}
}
private void HandleErrors(object s, HttpClientInterceptorEventArgs e)
{
if (e.Response?.IsSuccessStatusCode == true)
{
return;
}
if (e.Response == null)
{
AddErrorAlert(NotReachableError);
return;
}
switch (e.Response.StatusCode)
{
case HttpStatusCode.BadRequest:
var errorHandler = "";
foreach (var httpResponseHeader in e.Response.Headers)
{
if (httpResponseHeader.Key.EndsWith(HttpErrorHeader))
{
errorHandler = e.Response.Headers.GetValues(httpResponseHeader.Key).FirstOrDefault();
}
}
if (!string.IsNullOrEmpty(errorHandler))
{
AddErrorAlert(errorHandler);
}
break;
case HttpStatusCode.NotFound:
AddErrorAlert(NotFoundError);
break;
default:
AddErrorAlert(e.Response.Content.ToString());
break;
}
}
private static void OnBeforeSend(object sender, HttpClientInterceptorEventArgs args)
{
Console.WriteLine("BeforeSend event of HttpClientInterceptor");
Console.WriteLine($" - {args.Request.Method} {args.Request.RequestUri}");
}
private static void OnAfterSend(object sender, HttpClientInterceptorEventArgs args)
{
Console.WriteLine("AfterSend event of HttpClientInterceptor");
Console.WriteLine($" - {args.Request.Method} {args.Request.RequestUri}");
Console.WriteLine($" - HTTP Status {args.Response?.StatusCode}");
}
private void HttpClientInterceptor_AfterSend(object sender, HttpClientInterceptorEventArgs e)
{
Console.WriteLine("HttpClientInterceptor.AfterSend");
}