How to correlate related custom logs using ILogger and application insights?-CodePudding

I have a service, that performs some REST API calls and I do custom logging before and after the api call:

_logger.LogTrace("Invoked API {ApiName}", new { ApiName = apiName, Data = json });

var httpResponse = await _httpClient.PostAsync(url, new StringContent(json));
httpResponse.EnsureSuccessStatusCode();
var responseDto = await JsonSerializer.DeserializeAsync<ResponseDto>(httpResponse.Content.ReadAsStream())!;

if (!responseData.Success)
{
    _logger.LogWarning("Failed API {ApiName}", new { ApiName = apiName, Data = await httpResponse.Content.ReadAsStringAsync() });
}

The HttpClient also produces logs.

What is the recommended approach for correlating the logs, so that I can easily find related logs in application insights portal?

I would like all logs produced by HttpClient or possibly ADO.NET etc to be related to my custom log.

CodePudding user response：

The ILogger logs are automatically correlated, if you enable the entire ApplicationInsights for Asp.Net Core following this doc: https://learn.microsoft.com/en-us/azure/azure-monitor/app/asp-net-core For example, all logs will have same operationId, if they are done as part of the same request.

Also check: https://learn.microsoft.com/en-us/azure/azure-monitor/app/correlation

CodePudding user response：

If you want to just add your own correlation ID, then you can do so using logger data scopes:

using (logger.BeginScope(new Dictionary<string, object>{
    ["OperationId"] = Guid.NewGuid().ToString("N"),
}))
{
  ... // logs from any code in here will have an OperationId
}