How to register an instantiated object as IOptions in .NET Core

I have a consul server and I am using its key/value functionality to centralize my configuration. so, I have a key value like this:

"appSetting": {
    "secret": "my-secret",
    "clientKey" : "my-key",
    "apiVersion" : "V2"
}

I will read this configuration by this code snippet and fill it into a object with type of AppSetting:

 var appSetting = new AppSetting();
 var queryResult = await _client.KV.Get(configKey);

 if (queryResult.StatusCode == HttpStatusCode.OK)
 {
      var jsonValue = Encoding.UTF8.GetString(queryResult.Response.Value);
      appSetting = JsonSerializer.Deserialize<T>(jsonValue);
 }

And then I want to register this variable as IOptions into my DI container like this:

services.Configure<AppSettings>(settings =>
    {
        settings = appSettings
     });

but it does not work and my IOptions is empty in my consumer classes.

I am sure that I am reading the setting correctly from the consul.

How can I resolve this issue?

Try to use Options.Create :

Creates a wrapper around an instance of TOptions to return itself as an IOptions.

services.AddSingleton(serviceProvider =>
{
    return Options.Create(appSetting);
});

result: