Generate All GraphQL Objects

[ryancerium]

I'm generating C# objects for a GraphQL endpoint. I can generate C# classes for a specific query and its outputs, but I was wondering if I could generate C# classes for all of the object types, regardless of what my query looks like. Many of the fields would be null, but it would allow me to write different queries to the same endpoint and use the same C# classes. It would also make exploration easier since I could modify a query and use the data without having to rebuild my C# classes.

[schani]

@ryancerium I'm sorry, this slipped through the cracks.

Would you consider contributing this? We'd love to help you along the way.

[ryancerium]

I started doing that actually. I could get a hold of the InputObject types for the parameters, but then I got bogged down in the attribute maps that keep track of a type, nullability, etc. Plus, it seems like the InputObject aren't recursively defined the same way the output types are.

Anyway, my questions are:

Is there a rundown on the maps you use to keep track of type information?
Do you know how to get the InputObject fields?

[schani]

It's been a while since I looked at the GraphQL code, and right now we don't even support input objects.

What the GraphQL input does, in broad strokes, is to walk through the schema type and the selection type in lockstep. The selection is the type which the request specified, i.e. a subset of the schema type. The selection doesn't contain any type information, which is why the schema type must be walked in tandem: it has all the type information.

Generating all the types in the schema is actually a simpler job: only the schema type needs to be walked. I don't think it's wise to use the current code to do both jobs. I'd probably make a copy of the current code, change everything selection-specific to use the schema instead (iterating over class properties, for example), and remove what's not required.

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