Var logger = LoggerFactory. Pages/Counter.razor: ILoggerFactory LoggerFactory As you can see, the message shows up below when I click in one of the cameras that are connected to the NVR I'm using. The picture below shows an example of this issue. Usually, the problem is related to network connection or user ID and password.
The following example demonstrates logging with an ILoggerFactory in components. There are different reasons to have the Zosi view app showing the offline message. Logger.LogWarning("Someone has clicked me!") The following example demonstrates logging with an ILogger in components. The using directive for is required to support IntelliSense completions for APIs, such as LogWarning and LogError. Loggers respect app startup configuration. ConfigureLogging(logging => logging.AddProvider(LoggerProvider))įor general ASP.NET Core logging guidance that pertains to Blazor Server, see Logging in. WithUrl(NavigationManager.ToAbsoluteUri("/chathub")) In the component's OnInitializedAsync method, use HubConnectionBuilderExtensions.ConfigureLogging: var connection = new HubConnectionBuilder() WebAssembl圜onsoleLogger is internal and not available for direct use in developer code.Īdd the namespace for and inject an ILoggerProvider into the component: ILoggerProvider LoggerProvider Use of WebAssembl圜onsoleLogger makes logging possible within Mono inside a browser context. Unlike a traditional ConsoleLogger, WebAssembl圜onsoleLogger is a wrapper around browser-specific logging APIs (for example, console.log). Inject an ILoggerProvider to add a WebAssembl圜onsoleLogger to the logging providers passed to HubConnectionBuilder. Depending on the goal of logging during initialization, check logs server-side, client-side, or both.
Logging takes place server-side on the first execution of initialization code and client-side on the second execution of initialization code.
Hosted Blazor WebAssembly loggingĪ hosted Blazor WebAssembly app that prerenders its content executes component initialization code twice. For more information, see ASP.NET Core Blazor configuration.
Logging configuration can be loaded from app settings files. The Logging property is of type ILoggingBuilder, so all of the extension methods available on ILoggingBuilder are also available on Logging. In Program.cs, set the minimum logging level with LoggingBuilderExtensions.SetMinimumLevel and add the custom logging provider: var builder = WebAssemblyHostBuilder.CreateDefault(args) ī(LogLevel.Debug) ī(new CustomLoggingProvider()) Configure custom logging in Blazor WebAssembly apps with the WebAssemblyHostBuilder.Logging property.Īdd the namespace for .Hosting to Program.cs: using .Hosting