Answer by esamaldin elzain for Reading settings from app.config or web.config in .NET

extra : if you are working on a Class Library project you have to embed the settings.json file.

A class library shouldn't really be directly referencing anything inapp.config - the class doesn't have an app.config, because it's not anapplication, it's a class.

1. Go to the JSON file's properties.
2. Change Build Action -> Embedded resource.
3. Use the following code to read it.

var assembly = Assembly.GetExecutingAssembly();

var resourceStream = assembly.GetManifestResourceStream("Assembly.file.json");

string myString = reader.ReadToEnd();

now we have a JSON string we can Deserialize it using JsonConvert

if you didn't embed the file inside the assembly you can't use only the DLL file without the file