Logging

Function Monkey wires up the Azure Functions provided ILogger in the dependency injector.

To use it simply inject an ILogger into your handlers or services.

If you add logging into your application via the AddLogging extension method for IServiceCollection that will replace the Azure Functions logger and you will need to ensure it outputs to targets as you require.

Handler using an injected logger:

public class GetEchoQueryHandler : ICommandHandler<GetEchoQuery>
    {
        private readonly ILogger<GetEchoQueryHandler> logger;

        public GetEchoQueryHandler(ILogger<GetEchoQueryHandler> logger)
        {
            this.logger = logger;
        }

        public Task ExecuteAsync(GetEchoQuery command)
        {
            this.logger.Log(LogLevel.Information, "echo");
            return Task.CompletedTask;
        }
     }

FunctionAppConfiguration logging setup:

 builder
                .Setup((serviceCollection, commandRegistry) =>
                {
                    ....
                    serviceCollection.AddLogging(c =>
                    {
                        c.AddConsole();
                        c.AddDebug();
                    });