C SharpSerilogSerilog

Serilog - appsettings.json

Here is a sample appSettings.json with configurations in place for Serilog

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
{
  "NotesDatabaseSettings": {
    "ConnectionString": "Server=.; Database=Notes; integrated security=true;Trust Server Certificate=true;",
    "IsSSL": true
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    "NoteConnectionString": "Server=.; Database=Notes; integrated security=true;Trust Server Certificate=true;"
  },
  "Serilog": {
    // This is used to initialize Serilog logger.
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft": "Warning",
        "Microsoft.AspNetCore.Hosting.Diagnostics": "Error",
        "Microsoft.Hosting.Lifetime": "Information"
      }
    },
    "WriteTo": [
      // this enables logging to a file
      {
        "Name": "File",
        "Args": {
          "path": "e:\\t\\NoteLog.txt",
          "rollingInterval": "Day",
          "formatter": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"
        }
      }
      // note: WriteTo is an array. you can send output to multiple destinations
    ],
    "Enrich": [
      //
      // this enriches the log with additional information
      //
      "WithMachineName",
      "WithProcessId",
      "WithThreadId"
    ]
  }
}

You can see a number of different sections

  • NotesDatabaseSettings - ignore.
  • Logging - this is standard stuff. It exists in all of my asp.net core configuration files.
  • AllowedHosts - Ignore
  • ConnectionStrings - Ignore - I have some code cleanup - to consolidate this block and NotesDatabaseSttings. But that is not serilog related.
  • Serilog - this is code I added to hookup serilog.

The serilog block has a number of different sections

  • MinimumLevel - is where you set the logging level. Development might be set to Information, production might be set to Error. I think this configures serilog to output to the console.
  • WriteTo - This is used to configure Sync’s - places to send out logging data.. The first is “File” that is, the File sink. That is to configure logs into text files. I’m sending the logs to e:\t\NoteLog.txt. RollingInterval setups a daily file naming. And the formatter sends the output into a json format. Notice we wrap the file specification in brackets. This allows you to configure multiple logs.
  • Enrich instructs serilog to add a MachineName, ProcessId, and ThreadId to the logging.