How to inject ILogger into EFCore DbContext

Question

How to inject ILogger into EFCore DbContext

c# dependency-injection entity-framework-core

Question

I have .net core app with EFCore db context:

public class MyappDbContext : DbContext
{
    private ILogger<MyappDbContext> _logger;

    public MyappDbContext(DbContextOptions<MyappDbContext> options)
        : base(options)
    {
        // ???
    }
}

In startup class I registered context:

services.AddDbContext<MyappDbContext>(options => options.UseSqlServer(connectionString));

How to inject into MyappDbContext, ILogger or ILoggerFactory (to create logger)?

massther

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DavidG · Accepted Answer · 4/20/2017 12:07:59 PM

All you need to do is add a ILoggerFactory or ILogger parameter to the context constructor:

public class MyappDbContext : DbContext
{
    private readonly ILogger<MyappDbContext> _logger;

    public MyappDbContext(DbContextOptions<MyappDbContext> options,
        ILogger<MyappDbContext> logger)
        : base(options)
    {
        _logger = logger;
    }
}

How to inject ILogger into EFCore DbContext

Question

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