Read environment variables from launchSettings.json during Run/Debug

Hi all,

I am have a .Net Angular SPA where I am adding more application and libs so I can share frontend code. The objective is to run a different container for each app, so I am trying to pass the configuration of the app to run during build time.

I added these configuration in `launchSettings.json`:

    "AppName": {
      "commandName": "Project",
      "launchBrowser": true,
      "applicationUrl": "http://0.0.0.0:5026",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Local",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.SpaProxy",
        "NG_APP_SPA_NAME": "AppName",
        "NG_APP_SPA_PORT": "44416",
        "NG_APP_SPA_SUBFOLDER": "app-name"
      }
    }

And changed the csproj like this:

    <PropertyGroup>
        <TargetFramework>net6.0</TargetFramework>
        <Nullable>enable</Nullable>
        <IsPackable>false</IsPackable>
        <SpaRoot>ClientApp\projects\$(NG_APP_SPA_SUBFOLDER)\</SpaRoot>
        <SpaProxyServerUrl>http://localhost:$(NG_APP_SPA_PORT)</SpaProxyServerUrl>
        <SpaProxyLaunchCommand>npm start</SpaProxyLaunchCommand>
        <ImplicitUsings>enable</ImplicitUsings>
    </PropertyGroup>

"npm start" should run this script "ng serve $NG_APP_SPA_NAME --host 0.0.0.0 --disable-host-check --port $NG_APP_SPA_PORT -c development" but when I run/debug with Rider it seems like the environment variables aren't loaded correctly because the generate spa.proxy.json file doesn't have the expected values:

{
"SpaProxyServer": {
"ServerUrl": "http://localhost:", --> missing port
"LaunchCommand": "npm start",
"WorkingDirectory": "/Users/user/AppName/ClientApp/projects/", --> missing folder name
"MaxTimeoutInSeconds": "120"
}
}

I also noticed that ASPNETCORE_ENVIRONMENT doesn't have a value.

How can I fix this issue?