I know you can do this easily with Newtonsoft. As I am working with .NET Core 3.0, however, I am trying to use the new methods for interacting with JSON files —i.e., System.Text.Json
—and I refuse to believe that what I am trying to do is all that difficult!
My application needs to list users that have not already been added to my database. In order to get the full list of all users, the app retrieves a JSON string from a web API. I now need to cycle through each of these users and check if they have already been added to my application before returning a new JSON list to my view so that it can display the new potential users to the end user.
As I am ultimately returning another JSON at the end of the process, I don't especially want to bother deserializing it to a model. Note that the structure of data from the API could change, but it will always have a key from which I can compare to my database records.
My code currently looks like this:
using (WebClient wc = new WebClient())
{
var rawJsonDownload = wc.DownloadString("WEB API CALL");
var users = JsonSerializer.Deserialize<List<UserObject>>(rawJsonDownload);
foreach (var user in users.ToList())
{
//Check if User is new
if (CHECKS)
{
users.Remove(user);
}
}
return Json(users);
}
This seems like a lot of hoops to jump through in order to achieve something that would be fairly trivial with Newtonsoft.
Can anyone advise me on a better way of doing this—and, ideally, without the need for the UserObject
?