Logging in constructor (ARCH1007)

Key dotnet.logging.logging-in-constructor · Severity info · Category logging

Logging inside a constructor burdens object creation with side effects and produces noise across the DI lifecycle. Move logging into actual work methods.

Incorrect

public OrderService(ILogger<OrderService> logger)
{
    _logger = logger;
    _logger.LogInformation("OrderService created");
}

Correct

public OrderService(ILogger<OrderService> logger)
{
    _logger = logger;
}

Fix

Remove the log call from the constructor; if it is genuinely needed, move it to the relevant work method or an initialization step.