ConfigurationManager.Api, Consul.ConfigurationManager.Api

1. Example of read-only client:

 var service = new ConfigurationManager.Api.Manager(
	InputData.HostName,
	InputData.Port,
	InputData.ServiceHostName).AsReadOnly();

2. Example of read-write manager:

var service = new ConfigurationManager.Api.Manager(
	InputData.HostName,
	InputData.Port,
	InputData.ServiceHostName).AsManager();

var isAdded = await service.AddAsync("foo", "bar");
var getValue = await service.GetAsync("foo");

3. Example of appSettings and connectionStrings:

private KeyValuePair<string, string> firstPair = new KeyValuePair<string, string>("AllowedHosts", "*");

private KeyValuePair<string, string> secondPair = new KeyValuePair<string, string>(
	"Database", 
	"Data Source=localhost,1500;Database=DB;Uid=sa;Password=Password_123#; TrustServerCertificate=True");

var service = new Manager(
                InputData.HostName,
                InputData.Port,
                InputData.ServiceHostName)
                .AsManager();

var appSettingsFolder = await service.AddFolderAsync(EagerAdapter.AppSettingsName);
await appSettingsFolder.AddAsync(firstPair.Key, firstPair.Value);

var connectionStringFolder = await service.AddFolderAsync(EagerAdapter.ConnectionStringsName);
await connectionStringFolder.AddAsync(secondPair.Key, secondPair.Value);

Configuration.Api.Helpers

Adapter is provided as a shell for AppSettings and ConnectionStrings. It is initialized by using already existed read-only client instance.

1. Usage of lazyAdapter:

var manager = new Manager(
	InputData.HostName, 
	InputData.Port, 
	InputData.ServiceHostName).AsReadOnly();

var lazyAdapter = new LazyAdapter(manager);

var @VALUE = lazyAdapter.AppSettings("KEY");

2. Usage of eagerAdapter:

var manager = new Manager(
	InputData.HostName, 
	InputData.Port, 
	InputData.ServiceHostName).AsReadOnly();

var eagerAdapter = new EagerAdapter(manager);

var @VALUE = eagerAdapter.AppSettings("KEY");

3. Usage in DI:

To use it in DI please do as follows:

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
var configuration = new ConfigurationBuilder()
    .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
    .AddConsul(
        hostName: "http://127.0.0.1",
        port: 8500,
        serviceHostName: "DC1",
        mainFolder: "apps/myapp"
    )
    .Build();

// Register IConfiguration in DI container
builder.Services.AddSingleton<IConfiguration>(configuration);