Running my ASP.NET Core application using DNX, I was able to set environment variables from the command line and then run it like this:
set ASPNET_ENV = Production
dnx web
Using the same approach in 1.0:
set ASPNETCORE_ENVIRONMENT = Production
dotnet run
does not work - the application does not seem to be able to read environment variables.
Console.WriteLine(Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT"));
returns null
What am I missing?
Your problem is spaces around =.
This will work (attention to space before closing quote):
Console.WriteLine(Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT "));
The space after ASPNETCORE_ENVIRONMENT in this code is not a typo! The problem in the question was having extra space (in SET...), so you must use the same space in GetEnvironmentVariable().
As noted by Isantipov in a comment, an even better solution is to remove the spaces entirely from the SET command:
set ASPNETCORE_ENVIRONMENT=Production