In this article we will see how to create StringConverter useful for deserializing non-string primitives like Int32 Bool Double etc.
How to get system.text.json. Like how you would with NewtonsoftJsons JObject you can traverse and access values within the JSON Document Object Model DOM using the JsonElement and call conversion APIs on it to get NET values such as GetPropertyString and GetInt32. Area-SystemTextJson easy increase-code-coverage test enhancement up-for-grabs. The UTF-8 support is built-in.
Using HttpClient with SystemTextJson. The following parts of SystemTextJson arent usable from Visual Basic. If you try to use SystemTextJson ref struct APIs with Visual Basic you get BC40000 compiler errors.
Have a POCO that matches the JSON data or its easy to create one. You should used JsonSerializer when you. SystemTextJson exposes mechanisms for influencing serialization and deserialization behavior when using JsonSerializer via JsonSerializerOptions which allows runtime configuration and also via attributes like JsonPropertyNamestring and JsonIgnore which allow design-time configuration.
As per Microsoft A value enclosed in single quotes will result in a JsonExceptionSystemTextJson shall accept property names and string values only in double-quotes as per RFC 8259 specification. SystemTextJson adheres to RFC 8259 so if youre ever left wondering why a setting is different from Newtonsoft thats probably why. However while this code is now pretty straightforward theres still some.
There are few additional limitations as per the design including reference loop handling supports or support for SystemType etc. Help get SystemTextJson test coverage to 100 or close to it 32341. Need to use most of the properties of the JSON in your application code.
It also provides types to read and write JSON text encoded as UTF-8 and to create an in-memory document object model DOM for random access of the JSON elements within a structured view. Create a StringConverter for SystemTextJson for JSON Serialization. For these specific example requests and responses for reading an object the mean time per operation is reduced by 87 and the amount of memory allocated reduced by 55.