Web API – Reading values from Appsettings.json inside Class

Piyush Mohan

4y973.NET Core

How to Read Value from Appsettings.json inside Non controller class or inside the DAL or BAL using ASP.Net Core WEB API

5 Replies

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Amit Mohanty4y ago
Accepted answer
if you are calling your class from your controller then
private readonly IConfiguration _configuration;

public YourController(IConfiguration configuration)
{
    _configuration = configuration;
}

[HttpGet]
public async Task> GetData()
{
    YourNonControllerClass yourNonControllerClass = new YourNonControllerClass(_configuration);
    .....
    .....
}
I think it's better to use Interface instead of class.
Sachin Singh4y ago
@Piyush, the DI container will handle everything for you.
whatever things are registered inside the web project startup ConfigureServices() method will automatically come to your DAL or BLL constructor.
so don't think about constructor.
Sachin Singh4y ago
You need to use Microsoft.Extensions.Configuration
using Microsoft.Extensions.Configuration;


namespace YourProjectName
{
    public class GenericRepository : IGenericRepository where TEntity : class
    {

        private readonly IConfiguration _config;

        public GenericRepository(IConfiguration configuration)
        {

            _config = configuration;
        }

        public void AnyMethod()
        {
             _config.GetConnectionString("Constr"));
        }

}
Piyush Mohan4y ago
Hi Sir,

When I am createing object of class (YourNonControllerClass )
then i have to pass value to constructor.
what value i have to pass to constructor and How
Amit Mohanty4y ago
Try this
public class YourNonControllerClass
{
    private readonly IConfiguration configuration;
    public YourNonControllerClass(IConfiguration iConfig)
    {
        configuration = iConfig;
    }

    public void YourMethod()
    {
        string strValue = configuration.GetSection("AppSettings").GetSection("strValue").Value;
    }
}