From .NET Core 3.0+ you can cast your `IConfiguration` to a `IConfigurationRoot` and use the [GetDebugView][1] extension method. That will generates a human-readable view of the configuration showing where each value came from. E.g.
```csharp
var root = (IConfigurationRoot)Configuration;
var debugView = root.GetDebugView();
```
Sample output to `debugView`:
```
applicationName=Project.Name (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
ASPNETCORE_ENVIRONMENT=Development (EnvironmentVariablesConfigurationProvider)
ASPNETCORE_HTTPS_PORT=32774 (EnvironmentVariablesConfigurationProvider)
ASPNETCORE_LOGGING:
CONSOLE:
DISABLECOLORS=true (EnvironmentVariablesConfigurationProvider)
ASPNETCORE_URLS=https://+:443;http://+:80 (EnvironmentVariablesConfigurationProvider)
DOTNET_RUNNING_IN_CONTAINER=true (EnvironmentVariablesConfigurationProvider)
DOTNET_USE_POLLING_FILE_WATCHER=1 (EnvironmentVariablesConfigurationProvider)
AllowedHosts=* (JsonConfigurationProvider for 'appsettings.json' (Required))
Kestrel:
Certificates:
Development:
Password=xxxxxxxx-xxxxx-xxxx-xxxx-xxxxxxxxxx (JsonConfigurationProvider for 'secrets.json' (Optional))
EmailOptions:
EnableSsl=False (JsonConfigurationProvider for 'appsettings.json' (Required))
ENVIRONMENT=Development (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
HOME=/root (EnvironmentVariablesConfigurationProvider)
HOSTNAME=2cb0f5c24cc0 (EnvironmentVariablesConfigurationProvider)
HTTPS_PORT=32774 (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
NUGET_FALLBACK_PACKAGES=/root/.nuget/fallbackpackages;/root/.nuget/fallbackpackages2 (EnvironmentVariablesConfigurationProvider)
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin (EnvironmentVariablesConfigurationProvider)
PWD=/app (EnvironmentVariablesConfigurationProvider)
RUNNING_IN_CONTAINER=true (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
URLS=https://+:443;http://+:80 (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
USE_POLLING_FILE_WATCHER=1 (Microsoft.Extensions.Configuration.ChainedConfigurationProvider)
```
[1]:
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