How to get data from settings json to mvc 6 view?

Question

I want to load all settings key value pair from json file at once and use the settings key value in mvc 6 view page where required.I would be grateful if best solution is provided.I have a scenerio as below

if(Settings.enable_logo_text)
{
<span>Settings.logo_text</span>
}

Answer 1

The official documentation regarding the new configuration and options is quite good, I would recommend having a look there first.

Following the guidance provided there, start by creating a POCO class for your settings:

public class Settings
{
    public string logo_text { get; set; }
    public bool enable_logo_text { get; set; }
}

Update the ConfigureServices method of your startup class so you read your settings from the configured Configuration and is then available as a service that can be injected wherever you need to:

public void ConfigureServices(IServiceCollection services)
{
    ...

    services.Configure<Settings>(Configuration);
    services.AddOptions();
}

If you want to use a the appsettings.json file, make sure you also build your Configuration object including that json file. For example:

public Startup(IHostingEnvironment env)
{
    // Set up configuration sources.
    var builder = new ConfigurationBuilder()
        .AddJsonFile("appsettings.json")
        .AddEnvironmentVariables();
    Configuration = builder.Build();
}

This way you can configure your values in the appsettings.json file and the values will be set on your Settings class:

{
  ...

  "enable_logo_text": true,
  "logo_text": "My Logo Text"
}

Finally, you can access the configured values by adding a IOptions<Settings> dependency. The most straightforward way would be to directly inject the options into the view (as explained in the docs), but you might want to consider injecting the options into the controller and passing them to the view in a more controlled way:

@inject IOptions<Settings> Settings
...
@if(Settings.Value.enable_logo_text)
{
    <span>@Settings.Value.logo_text</span>

}