Environment-based configuration (Development, Staging,?

Production)

ASP.NET Core uses the ASPNETCORE_ENVIRONMENT variable to determine the runtime

environment.

Supported environments (by convention):

• Development
• Staging
• Production

Environment-specific logic can be applied:

if (env.IsDevelopment()) { ... }

Also used to load:

• appsettings.{env}.json
• Startup{env}.cs (in older versions)