How to access attributes from launchSettings.json file in Razor Pages (Blazor WebAssembly)?

Question

        "APIs": {
        "API-1": "http://localhost:5000/student",
        "API-2":  "http://localhost:5001/teacher"}

I created these attributes in launchSettings.json file. Now I need to access API-1 and API-2 values in Student.razor page. I tried to use it like this..

List<Student> students = await http.GetFromJsonAsync<List<Student>>("API-1");
    

Answer 1

You don't use launchsettings for that, you should use appsettings.json

Create an appsettings.json in wwwroot and put your api config in there.

{
  "APIs": {
    "API-1": "http://localhost:5000/student",
    "API-2": "http://localhost:5001/teacher"
  }
}

Then inject IConfiguration wherever you need it. e.g.

@inject Microsoft.Extensions.Configuration.IConfiguration config

and

List<Student> students = await http.GetFromJsonAsync<List<Student>>(config["APIs:API-1"]);