A field initializer cannot reference the non-static field, method, or property 'MyController._config'

I’m trying to get value from appsettings to MyController in .Net Core 3.1 MVC. Here I need to achieve this in below way:

private readonly IConfiguration _config;

public MyController(IConfiguration config)
{
    _config = config;
}

public string apiURL = _config.GetValue<string>("ServiceURL");

But when I try to do so, I’m getting below error.

A field initializer cannot reference the non-static field, method, or property ‘MyController._config’

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>Solution :

Change your field to be a property instead, like this:

public string apiURL => _config.GetValue<string>("ServiceURL");

When using = you are creating a field.

When using => you are creating a get-only property.