Sharing AppSettings between an Angular project and ASP.NET Core in a seamless manner

Currently, I have a project set up using the VS 2022 ASP.NET Core with Angular template.

The project itself is working well, but I am facing a challenge in trying to integrate the Angular app with the .NET Core's appsettings.json file for configuration purposes. My goal is to have one shared file for ease of use and deployment.

When looking at the file structure of the deployed project, it appears as follows:

  • Main Deployment Folder
    • api.exe (along with other framework files)
    • appsettings.json
    • wwwroot folder
      • assets folder
      • index.html (and all other Angular files)

Initially, I attempted creating an Angular service to access the config from a file following guidance provided in this answer here.

However, I realized that I couldn't directly point to the appsettings.json file located above the wwwroot directory, as it was not being served in the same manner and thus inaccessible.

I could potentially utilize the build settings in the angular.json to include the appsettings file, but this approach would lead to managing two config files once again.

While some examples demonstrate serving config settings through an API call, I am hesitant to pursue this option and would prefer to stick to a file-based approach.

My primary questions revolve around:

  1. Is there a way to create a service in the Angular app that resides in the wwwroot folder and can directly access the appsettings.json file in the parent directory without serving it?

  2. Would it be viable to consider relocating the appsetttings.json down into the wwwroot folder to enable the Angular app's access, and subsequently modifying the

    WebApplication.CreateBuilder(args)
    in the API to incorporate this new location for appsettings.json?

Your insights and suggestions are greatly appreciated!

Answer №1

To tackle the challenge, one approach is to leverage the ConfigurationBuilder class within both your ASP.NET Core and Angular applications in order to access the shared appsettings.json file from a designated directory. An exemplary implementation of this method can be found by visiting this particular Stack Overflow post.

An alternative suggestion involves establishing a customized service within your Angular project that sends an HTTP request to your ASP.NET Core application for retrieving the configuration details contained within the appsettings.json file.

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