feat: Add IRequestExecutorBuilder extension for adding contact information

[damienpontifex]

It would be nice to have a convenience/extension method for adding contact info instead of the custom schema object as referenced in the README.

Proposal

//
// Summary:
//     Adds contact information and @contact decorator to schema
//
// Parameters:
//   name:
//     Contact title of the subgraph owner
//
//   url:
//     URL where the subgraph's owner can be reached
//
//   description:
//     Other relevant contact notes; supports markdown links
public static IRequestExecutorBuilder AddContact(this IRequestExecutorBuilder builder, string name, string? url = null, string? description = null);

This would make configuration inline with other graphql configuration and avoid needing to define a custom schema type only to add this attribute.

[dariuszkuc]

This would be great... but it looks like HotChocolate API does not allow for this :( Since schema builder mechanism is considered "deprecated", I'm guessing it won't be fixed (I'll open up an issue) and we'll have to wait for the new "skimmed" API to stabilize.

My attempt -> https://github.com/apollographql/federation-hotchocolate/pull/47

The underlying issue is that we cannot apply multiple SetSchema lambdas as instead of doing cumulative updates from all applied lambdas, only the last one is applied. This is the behavior I'd expect from SetSchema(object) and sounds like a miss on the lambda front.

[dariuszkuc]

Opened up https://github.com/ChilliCream/graphql-platform/issues/6651

[damienpontifex]

Maybe a Action argument to the AddApolloFederationV2 method then might work better? Then it can be configured as the federated schema is configured?

[dariuszkuc]

Good idea. This could work -> https://github.com/apollographql/federation-hotchocolate/pull/47/commits/b93b2249ee0acc8c3e97d3c70fb2ffb83ce25cf7

[damienpontifex]

@dariuszkuc looks good. What's the ComposeDirective bit...might be just a method in hot chocolate I haven't used before? It's just the same to setup contact directive in a similar way I assume

[dariuszkuc]

👋 @composeDirective is a federation directive that allows you to preserve your directives in the supergraph (by default they got stripped out), see docs

Both @contact and @composeDirective are applicable on a schema.