public async Task <string> SendMetricsAsync(DataDogMetric metric)
{
var request = new HttpRequestMessage(HttpMethod.Post, _url)
{
Content = new StringContent(JsonSerializer.Serialize(metric, new JsonSerializerOptions
{
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
}))
};
var response = await _client.SendAsync(request);
response.EnsureSuccessStatusCode();
return(await response.Content.ReadAsStringAsync());
}
public async Task PublishAsync(HealthReport report, CancellationToken cancellationToken)
{
var metric = new DataDogMetric(_configuration.ServiceCheckName);
foreach (var keyedEntry in report.Entries)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var sanitizedKey = keyedEntry.Key.Replace(' ', '_');
var entry = keyedEntry.Value;
var metricNameTag = string.Empty;
var metricName = string.Empty;
var sanitizedTags = new List <string>();
foreach (var tag in entry.Tags)
{
var sanitizedTag = tag.Replace(' ', '_');
var tagKeyValue = tag.Split(':');
if (tagKeyValue.Length == 0)
{
sanitizedTags.Add(sanitizedTag);
continue;
}
if (tagKeyValue[0] == MetricNameTag)
{
metricNameTag = tag;
metricName = !string.IsNullOrWhiteSpace(_configuration.MetricNamePrefix)
? $"{_configuration.MetricNamePrefix}.{tagKeyValue[1].Replace(' ', '_')}"
: tagKeyValue[1].Replace(' ', '_');
continue;
}
sanitizedTags.Add(sanitizedTag);
}
if (string.IsNullOrWhiteSpace(metricNameTag))
{
throw new ArgumentException($"metric_name tag is required on health check {keyedEntry.Value}");
}
var dataDogStatus = entry.Status switch
{
HealthStatus.Healthy => Status.Ok,
HealthStatus.Degraded => Status.Warning,
HealthStatus.Unhealthy => Status.Critical,
_ => Status.Unknown
};
var p3domainTag = $"p3domain:{_configuration.Domain}".ToLower();
var p3appTag = $"p3app:{_configuration.Application}".ToLower();
var p3envTag = $"p3env:{_configuration.Environment}".ToLower();
var healthCheckTag = $"{_configuration.ServiceTagPrefix}:{sanitizedKey}".ToLower();
var tags = _configuration
.DefaultTags
.Concat(sanitizedTags)
.Concat(new[] { p3domainTag, p3appTag, p3envTag, healthCheckTag }).ToArray();
metric.AddMetric(metricName, (int)dataDogStatus, (long)entry.Duration.TotalMilliseconds, tags);
}
await _client.SendMetricsAsync(metric);
}
}
