.NET core logging [serilog]

Logging using Serilog

Per serilog:  Serilog provides diagnostic logging to files, the console, and elsewhere. It is easy to set up, has a clean API, and is portable between recent .NET platforms.

1. Nuget package: Serilog.Extensions.Logging.File


2. In Startup.cs, in Configure add ILoggerFactory loggerFactory and below code



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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory) { //Serilog.Extensions.Logging.File loggerFactory.AddFile("Logs/MyApp-{Date}.txt"); // .NET logging loggerFactory = LoggerFactory.Create(builder => builder.AddFilter("Microsoft", LogLevel.Warning) .AddFilter("System", LogLevel.Warning) .AddFilter("LoggingConsoleApp.Program", LogLevel.Debug) .AddEventLog() .AddDebug()); }



3. Inject ILogger in your class and log as below



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public class UserProducer : IUserProducer { private readonly ILogger<UserProducer> _logger; public UserProducer() { } public UserProducer (ILogger<UserProducer> logger) { _logger = logger; } public async void Produce(string message) { var config = new ProducerConfig { BootstrapServers = "localhost:9094" }; using (var producer = new ProducerBuilder<Null, string>(config).Build()) { try { _logger.LogInformation($"Trying to deliver message {message}"); var result = await producer.ProduceAsync("send-message", new Message<Null, string> { Value = "hi" }); _logger.LogInformation($"Delivered message {result.Value} to {result.TopicPartitionOffset}"); } catch (ProduceException<Null, string> e) { _logger.LogError($"Delivery of message failed {e.Error.Reason}"); } catch (Exception ex) { } } } }