Question 87255 in ASP.NET Question posted in
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Hot to access appsettings.json from another project in same solution? – Asp.net

I have a solution with two projects:

  • ASP.NET Core 6 Web API Project
  • Class Library Project

I want to access the appsettings.josn file in the web api project from within the class library.

The api project already has a reference to the class library (Request/Response Models, Services, Handlers…etc).

Adding a reference for the api project to the class library would create a circular reference problem.

What’s the best solution for this problem? Do I ditch the 2-project solution structure and place everything under 1 project?

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2

Answers


  1. 0

    Make a get function that return information that you want from project that is owner of json settings

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  2. 0

    We do not recommend using the ConfigurationManager Class in the class library to get the value of appsettings.json.

    Reason:

    Keep your class library flexible，don’t do this in your class library. And Dependency Injection becomes a very flexible and powerful tool.

    Best Practise

    How to use the IOptions pattern for configuration in ASP.NET Core RC2

    Test Steps And Result

    Program.cs

    builder.Services.Configure<AppSettingsModel>(builder.Configuration.GetSection("ApplicationSettings"));

builder.Services.AddOptions();

    appsettings.json

    {
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "ApplicationSettings": {
    "SmtpHost": "aa",
    "EmailRecipients": "bb"
  }
}

    Model and test method in ClassLibrary.

    enter image description here

    Test Method in Controller

    public string GetValue()
{
    GetValue g = new GetValue();
    string result = g.fortest(_settings.Value.SmtpHost,_settings.Value.EmailRecipients);
    return result;
}

    enter image description here

    Test Result

    enter image description here

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