System.Text.JSON doesn't deserialize what Newtonsoft does

Question

I have a json that the new System.Text.Json.JsonSerializer.Deserialize(json_data) serialize as List with the correct numbers of e

Answer 1

The default behavior of the System.Text.Json deserializer is to match properties as case sensitive. You need to pass options telling it to match case insensitive:

using System.Text.Json;

JsonSerializer.Deserialize<T>(json_data, new JsonSerializerOptions 
{
    PropertyNameCaseInsensitive = true
});