public async Task Invoke(HttpContext httpContext)
{
var httpMethod = httpContext.Request.Method;
var path = httpContext.Request.Path.Value;
// check request security
if (_appOptions.SecurityHandler != null)
{
var validRequest = _appOptions.SecurityHandler.Invoke(httpContext.Request);
if (!validRequest)
{
httpContext.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
return;
}
}
if (httpMethod == "GET" && Regex.IsMatch(path, $"^/{_appOptions.RoutePrefix}/?$"))
{
var healthCheckResult = await _healthChecker.Check().ConfigureAwait(false);
if (healthCheckResult == null)
{
throw new ArgumentNullException(nameof(healthCheckResult));
}
httpContext.Response.StatusCode = (int)healthCheckResult.HttpStatus;
httpContext.Response.ContentType = "application/json";
var jsonString = JsonConvert.SerializeObject(healthCheckResult);
await httpContext.Response.WriteAsync(jsonString, Encoding.UTF8).ConfigureAwait(false);
return;
}
await _next(httpContext);
}
public async Task <ActionResult <IEnumerable <HealthStatus> > > GetHealthStatus()
{
// just for test !!!
IUrl url = new Url("https://www.dotnettips.info/", _client);
IUrl url2 = new Url("https://www.dotnettips.info/", _client, "post/3003/شروع-به-کار-با-dntframeworkcore-قسمت-5-مکانیزم-eventing-و-استفاده-از-سرویسهای-موجودیتها");
IUrl url3 = new Url("http://random-domain.ir/", _client);
IUrl url4 = new Url("http://ali895.com/", _client);
IUrl invalidUrl = new Url("", _client);
var urls = new Urls(new[] { url, url2, url3, url4, invalidUrl });
var healthStatuses = await _healthChecker.Check(urls);
//----------------
await _healthChecker.UnavailableUrls(urls);
//-----------------
//await _healthChecker.AvailableUrls(urls);
await _healthJob.Save(healthStatuses);
return(healthStatuses);
}
public async Task <ActionResult <IEnumerable <HealthStatus> > > GetHealthStatus()
{
var healthStatuses = await _healthChecker.Check(_urls.Value);
await _healthJob.Save(healthStatuses);
return(healthStatuses);
}
public IHttpActionResult HealthCheck(bool?details = false, bool?warn = false)
{
var result = healthChecker.Check(
new List <IHealthCheck>()
{
new ApplicationDatabaseHealthCheck()
}
);
var response = Request.CreateResponse();
response.Headers.CacheControl = new CacheControlHeaderValue
{
NoCache = true,
NoStore = true,
MustRevalidate = true
};
if (!warn.HasValue || warn.Value)
{
if (result.Status == HealthCheckStatus.Healthy)
{
response.StatusCode = HttpStatusCode.OK;
response.Content = new StringContent(HealthCheckSuccessfulResponseContent);
}
else
{
response.StatusCode = HttpStatusCode.ServiceUnavailable;
response.Content = new StringContent(HealthCheckFailedResponseContent);
}
}
else if (!details.HasValue || details.Value)
{
response.StatusCode = HttpStatusCode.OK;
response.Content = new StringContent(
JsonConvert.SerializeObject(
result,
Formatting.Indented,
new StringEnumConverter()
)
);
}
else
{
if (result.Status == HealthCheckStatus.Error)
{
response.StatusCode = HttpStatusCode.ServiceUnavailable;
response.Content = new StringContent(HealthCheckFailedResponseContent);
}
else
{
response.StatusCode = HttpStatusCode.OK;
response.Content = new StringContent(HealthCheckSuccessfulResponseContent);
}
}
return(ResponseMessage(response));
}
public void ShouldTimeOutWhenHealthCheckTimeOutIsSpecified()
{
IHealthChecker healthChecker = GetHealthChecker(b => b.WithHealthChecks(() => new[] { new SlowRunningHealthCheck(5000) }).WithTimeout(TimeSpan.FromMilliseconds(500)));
var result = healthChecker.Check();
result.Status.ShouldBe(HealthCheckStatus.NotOkay);
result.Results.Length.ShouldBe(1);
((FailedIndividualHealthCheckResult)result.Results[0]).FailureReason.ShouldBe("Health check timed out.");
}
private Response ExecuteHealthChecks()
{
var result = _healthChecker.Check();
var statusCode = result.Status == HealthCheckStatus.Okay ? 200 : 503;
var response = Response.AsJson(result)
.WithStatusCode(statusCode)
.WithContentType("text/plain")
.WithHeader("Content-Disposition", "inline")
.WithHeader("Cache-Control", "no-cache");
return(response);
}
private async Task ProcessRequest(HttpContext context)
{
var result = _healthChecker.Check();
var response = context.Response;
var json = JsonConvert.SerializeObject(result, Formatting.Indented, new StringEnumConverter());
response.StatusCode = result.Status == HealthCheckStatus.Okay ? 200 : 503;
response.ContentType = "text/plain";
response.Headers["Content-Disposition"] = "inline";
response.Headers["Cache-Control"] = "no-cache";
await response.WriteAsync(json);
}
private async Task <HealthReport> CheckHealth(string login)
{
if (!_telemetryStorage.Exist(login))
{
Response.StatusCode = 404;
return(new HealthReport());
}
var bodyTelemetry = await _telemetryStorage.Get(login);
var healthReport = await _healthChecker.Check(bodyTelemetry);
return(healthReport);
}
public void ProcessRequest(HttpContext context)
{
var result = _healthChecker.Check();
var response = context.Response;
var json = JsonConvert.SerializeObject(result, Formatting.Indented, new StringEnumConverter());
response.StatusCode = result.Status == HealthCheckStatus.Okay ? 200 : 503;
response.ContentType = "text/plain";
response.Headers["Content-Disposition"] = "inline";
response.Cache.SetCacheability(HttpCacheability.NoCache);
response.Write(json);
response.End();
}
protected override Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
return(Task.Factory.StartNew(() =>
{
var result = _healthChecker.Check();
var json = JsonConvert.SerializeObject(result, Formatting.Indented, new StringEnumConverter());
var statusCode1 = result.Status == HealthCheckStatus.Okay ? HttpStatusCode.OK : HttpStatusCode.ServiceUnavailable;
var response = request.CreateResponse(statusCode1);
response.Content = new StringContent(json);
response.Headers.CacheControl = new CacheControlHeaderValue
{
NoCache = true
};
return response;
},
cancellationToken));
}
public async Task <ActionResult <IEnumerable <HealthStatus> > > GetHealthStatus()
{
var result = await _healthChecker.Check(_urls.Value);
return(result);
}