You can use MemoryConfigurationBuilderExtensions
to provide it via a dictionary.
using Microsoft.Extensions.Configuration;
var myConfiguration = new Dictionary<string, string>
{
{"Key1", "Value1"},
{"Nested:Key1", "NestedValue1"},
{"Nested:Key2", "NestedValue2"}
};
var configuration = new ConfigurationBuilder()
.AddInMemoryCollection(myConfiguration)
.Build();
The equivalent JSON would be:
{
"Key1": "Value1",
"Nested": {
"Key1": "NestedValue1",
"Key2": "NestedValue2"
}
}
The equivalent Environment Variables would be (assuming no prefix / case insensitive):
Key1=Value1
Nested__Key1=NestedValue1
Nested__Key2=NestedValue2
The equivalent Command Line parameters would be:
dotnet myapp.dll \
-- \
--Key1=Value1 \
--Nested:Key1=NestedValue1 \
--Nested:Key2=NestedValue2