How to display ClientIp in logs using Serilog in .net core?

Question

Project is using .Net Core 3.1 WebAPI.

I am trying to log IP address of the client's device to console. I have installed this package Serilog.Enrichers.ClientInfo v1.2.0 and followed their steps. In addition to console, there is a table ErrorLog with column [ClientIp] where I would like to log the IP address. As you can see in the output, both ClientIp and ClientAgent sections are blank. Am I missing something? Also please verify if the syntax is correct.

Here is my Serilog config from appsettings.json

"Serilog": {
"using": [],
"MinimumLevel": {
  "Default": "Debug",
  "Override": {
    "Microsoft": "Warning",
    "System": "Warning",
    "Microsoft.Hosting.Lifetime": "Information"
  }
},
"Enrich": [ "FromLogContext", "WithMachineName", "WithClientIp", "WithClientAgent" ],
"WriteTo": [
  {
    "Name": "Logger",
    "Args": {
      "configureLogger": {
        "WriteTo": [
          {
            "Name": "Console",
            "Args": {
              "outputTemplate": "[{Level:u3} {Timestamp:o}] {ClientIp} {ClientAgent} ({SourceContext}) {Message} {NewLine}"
            }
          }
        ]
      }
    }
  },
  {
    "Name": "Logger",
    "Args": {
      "configureLogger": {
        "Filter": [
          {
            "Name": "ByIncludingOnly",
            "Args": {
              "expression": "@l in ['Error', 'Fatal']"
            }
          }
        ],
        "WriteTo": [
          {
            "Name": "MSSqlServer",
            "Args": {
              "connectionString": "TestDbContext",
              "tableName": "ErrorLogs",
              "batchPostingLimit": 50,
              "autoCreateSqlTable": true,
               "columnOptionsSection": {
                "removeStandardColumns": [ "MessageTemplate" ],
                "customColumns": [
                  {
                    "ColumnName": "ClientIp",
                    "DataType": "VARCHAR",
                    "AllowNull": true,
                    "DataLength": 50
                    //"NonClusteredIndex": true
                  }
                ]
              }
            }
          }
        ]
      }
    }
  }
]

}

Output:

[INF 2022-07-11T20:13:49.0041535+05:30]   () APP:API service has 
started
[INF 2022-07-11T20:13:49.5737570+05:30]   
(Microsoft.Hosting.Lifetime) Now listening on: 
"https://localhost:7017"
[INF 2022-07-11T20:13:49.5987755+05:30]   
(Microsoft.Hosting.Lifetime) Now listening on: 
"http://localhost:5017"
[INF 2022-07-11T20:13:49.6185554+05:30]   
(Microsoft.Hosting.Lifetime) Application started. Press Ctrl+C to 
shut down.
[INF 2022-07-11T20:13:49.6255005+05:30]   
(Microsoft.Hosting.Lifetime) Hosting environment: "Development"
[INF 2022-07-11T20:13:49.6305270+05:30]   
(Microsoft.Hosting.Lifetime) Content root path: "****"
[ERR 2022-07-11T20:14:29.2967601+05:30]   () Testing exception
[ERR 2022-07-11T20:14:29.3735005+05:30]   
(Serilog.AspNetCore.RequestLoggingMiddleware) HTTP "GET" 
"/api/Hospitals" responded 500 in 970.4728 ms

Answer 1

Try this package serilog-aspnetcore :

app.UseSerilogRequestLogging(options =>
{
    // Customize the message template
    options.MessageTemplate = "{RemoteIpAddress} {RequestScheme} {RequestHost} {RequestMethod} {RequestPath} responded {StatusCode} in {Elapsed:0.0000} ms";

    // Emit debug-level events instead of the defaults
    options.GetLevel = (httpContext, elapsed, ex) => LogEventLevel.Debug;

    // Attach additional properties to the request completion event
    options.EnrichDiagnosticContext = (diagnosticContext, httpContext) =>
    {
        diagnosticContext.Set("RequestHost", httpContext.Request.Host.Value);
        diagnosticContext.Set("RequestScheme", httpContext.Request.Scheme);
        diagnosticContext.Set("RemoteIpAddress", httpContext.Connection.RemoteIpAddress);
    };
});

Check on this link, it might help.

Adding IP logging #38

Answer 2

看起来您在 using 语句（appsettings.json ln 2）中缺少"Serilog.Enrichers.ClientInfo" 。