In June 2019, Microsoft introduced System.Text.Json as a feature of .NET (core) 3.0 to the public. The reason they gave for creating this new namespace was that they were unhappy with the old built-in solution for serializing / deserializing JSON. The poor built-in capabilities to work with JSONs –of course- was the reason for James Newton-King to create Json.Net (for many of us just called Newtonsoft, which actually is his company and not the name of the library). Newtonsoft’s Json.Net...
Type-safety across .Net and TypeScript – Testing JSON serialization and deserialization
This is part 7 of how we generate types from our .Net backend to be used in our TypeScript client. Why do we even bother?Generating TypeScript constants from .Net constantsFinding the types used in communication between the .Net backend and the TypeScript clientGenerating TypeScript classes from .Net typesGenerating Angular Services from .Net WebApi ControllersTypeScript-friendly JSON serialization of F# typesTesting JSON serialization and deserializationPutting all the parts together In the...
Our journey to F#: JSON serialization with a mix of C# and F#
There are many libraries for JSON serialization in the .Net realm. The best known are probably Newtonsoft’s Json.NET and System.Text.Json. Both can’t handle F# discriminated unions very well. There are also a couple of F# JSON libraries available like Thoth.Json or FSharp.Json. They are all great libraries, and choosing one is about making trade-offs. However, our case is a bit complicated because we have a mix of C# and F# code. This results in object/value graphs that consist of a...
Type-safety across .Net and TypeScript – TypeScript-friendly JSON serialization of F# types
This is part 6 of how we generate types from our .Net backend to be used in our TypeScript client. Why do we even bother?Generating TypeScript constants from .Net constantsFinding the types used in communication between the .Net backend and the TypeScript clientGenerating TypeScript classes from .Net typesGenerating Angular Services from .Net WebApi ControllersTypeScript-friendly JSON serialization of F# typesTesting JSON serialization and deserializationPutting all the parts together None of...