Support for custom scalars

[ahanoff]

GraphQL.g.cs(6110, 36): [CS0246] The type or namespace name 'ObjectId' could not be found (are you missing a using directive or an assembly reference?)

in schema it looks like:

scalar ObjectId

Does it support custom scalars? I've generated client from schema that uses Mongo ObjectId, and got this error

[byme8]

At the moment, there is not support for custom scalar types. I will have a look at it.

[ahanoff]

https://chillicream.com/docs/strawberryshake/scalars/#custom-scalars
By default, all custom scalars are treated like the String scalar. This means, that the client expects a string value and will deserialize it to a System.String.

thanks @byme8, btw this is how Strawberry Shake client treats custom scalars. Maybe it gives you some ideas

[byme8]

@ahanoff Checkout v2.1.0

[DaveRMaltby]

Should a schema that contains a TimeSpan start failing after upgrading to v2.1.0? I am going to try to follow your readme and make a custom scalar for System.TimeSpan If this works, I would like to create an issue for it and suggest that it be natively supported by ZeroQL.

[byme8]

At the moment, it will fail. It is not bootstrapped correctly in the library. It is possible to define it as a custom scalar, but it would be much better to handle it as a system type.

I already started working on it and noticed that HotChocolate and System.Text.Json serialize System.TimeSpan in different formats. So, I plan to add a more robust way to tinker with JSON serialization in the library.

[DaveRMaltby]

You rock! Thanks.

[byme8]

@DaveRMaltby Starting from v3.3.0-preview.2 the System.TimeSpan is properly bootstrapped.

[DaveRMaltby]

@byme8, great! Thank you sir. I'll take advantage of it.