Setting the options for JsonSerializer.SerializeAsync

These are the following options (JsonSerializerOptions) you can set that affect the serialization of your object

• IgnoreNullValues. If your property is null, do not serialize it to JSON.
• PropertyNamingPolicy. If you don't set this, your property will be serialized as PascalCase, which is the property naming convention for C#. To serialize it to camelCase, use JsonNamingPolicy.CamelCase.
• DictionaryKeyPolicy. Ditto above but for your dictionary keys.
• WriteIndented. Set it to true so it is formatted for human readibility. For production though, set it to false.