Adding Logging to Client Side Blazor

July 13, 2019

Whilst there are some pre-built libraries for this, I seemed to be getting Mono linking errors. What finally worked for me was to install the pre-release versions of:



Install-Package Microsoft.Extensions.Logging -Version 3.0.0-preview6.19304.6
Install-Package Microsoft.Extensions.Logging.Console -Version 3.0.0-preview6.19304.6

Now, in your View Model, accept the Logger:



public MyViewModel(ILogger<MyViewModel> logger)

Then you can log as normal:



\_logger.LogInformation("Hello, here's a log message");

You should now see the debug message in the F12 console.

You might be wondering why you don’t need to explicitly inject the logging capability; the reason is that:



BlazorWebAssemblyHost.CreateDefaultBuilder()            

Does that for you.



Profile picture

A blog about one man's journey through code… and some pictures of the Peak District
Twitter

© Paul Michaels 2022