Date: 2021-06-14 09:07:50
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Good morning @Martin, this was very handy, thank you. I have added the following to the console app project file:

<!-- Try and nest the appsettings when it's not a web sdk project. -->
  <ItemGroup Condition="'$(IsSdkProject)' == 'true' AND '$(IsWebSdkProject)' == 'false'">
    <Content Include="..\StockTradingSimulator.ApiHost\appsettings.*.json">
    <Content Include="appsettings*.json">

When running the console app with dotnet run, the Web API appsettings.json file is now found.

I want to send an email from my console app, the email sender is in the web API project and has a dependency on the dbContext.

The Web API class derived from DbContext uses the following to get the connection string:

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlServer(_configuration.GetConnectionString("StockTrading"));

appsettings.json contains the connection string to my SQL Server database.

dotnet run for the console app throws an error System.ArgumentNullException: Value cannot be null. (Parameter 'connectionString')

Do you know how I can access the connection string in the console app? I tried the following in my console app service collection extension method, to no avail:

internal static IServiceCollection AddStockUpdater(this IServiceCollection services)
            var configuration = new ConfigurationBuilder()
                    .AddJsonFile("appsettings.json", false)

            services.AddHttpClient("trading", client => client.BaseAddress = new Uri("http://localhost:4000"));

                .AddScoped<IEmailSender, EmailSender>()
                .AddScoped<IEmailService, EmailService>()
                // other dependencies

            return services;
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Posted by: Konstantina