How Do I Access Configuration and Environment Objects During Startup in ASP.NET Core 6 ?

Accessing Configuration in ASP.NET Core 6 Startup

Prior ASP.NET Core versions relied on the Startup class for easy access to configuration and hosting environment details. However, .NET 6 and later utilize WebApplicationBuilder, changing how we access these crucial objects.

The WebApplicationBuilder offers direct access through its Configuration and Environment properties. This simplifies the process significantly. Here's an example:

<code class="language-csharp">var builder = WebApplication.CreateBuilder(args);

IConfiguration configuration = builder.Configuration;
IHostEnvironment environment = builder.Environment; // Note: IWebHostEnvironment is obsolete, use IHostEnvironment</code>

The configuration object grants access to settings defined in appsettings.json and other configuration sources. The environment object provides details about the hosting environment (development, production, etc.).

This streamlined approach allows for efficient configuration-related tasks. For instance, retrieving a connection string:

<code class="language-csharp">builder.Services.AddDbContext<festifycontext>(opt =>
    opt.UseSqlServer(configuration.GetConnectionString("Festify")));</code>

This method is cleaner and more direct than injecting Configuration into the Startup class in older versions. The WebApplicationBuilder provides immediate access to essential startup information.

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