Logging to elmah.io from Logary

Logary is a semantic logging framework like Serilog and Microsoft Semantic Logging. Combining semantic logs with elmah.io is a perfect fit since elmah.io has been designed with semantics from the ground up.

In this tutorial, we’ll add Logary to a Console application, but the process is almost identical to other project types. Create a new console application and add the elmah.io target for Logary:

Install-Package Logary.Targets.ElmahIO

dotnet add package Logary.Targets.ElmahIO

<PackageReference Include="Logary.Targets.ElmahIO" Version="5.*" />

paket add Logary.Targets.ElmahIO

Configuration in F#

Configure elmah.io just like you would any normal target:

withTargets [
  // ...
  ElmahIO.create { logId = Guid.Parse "LOG_ID"; apiKey = "API_KEY" } "elmah.io"
] >>
withRules [
 // ...
 Rule.createForTarget "elmah.io"
]

where LOG_ID is the id of your log (Where is my log ID?).

Configuration in C#

Configuration in C# is just as easy:

.Target<ElmahIO.Builder>(
  "elmah.io",
  conf => conf.Target.SendTo(logId: "LOG_ID", apiKey: "API_KEY"))

where API_KEY is your API key and LOG_ID is the ID of your log.

Logging

To start logging messages to elmah.io, you can use the following F# code:

let logger = logary.getLogger (PointName [| "Logary"; "Samples"; "main" |])

Message.event Info "User logged in"
  |> Message.setField "userName" "haf"
  |> Logger.logSimple logger

or in C#:

var logger = logary.GetLogger("Logary.CSharpExample");
logger.LogEventFormat(LogLevel.Fatal, "Unhandled {exception}!", e);

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