Shane Krueger

cc: @Mithras

@Mithras @michael-watson @mac2000 I'm going to try to put time into this PR over the next couple weekends, so GraphQL.NET v8 can be released. It's at the point now where...

@joemcbride I've been working on GraphQL.NET Federation support for code-first and "type-first" approaches in addition to the schema-first approach already available, basing my efforts on prior work done by @Mithras...

> Btw, why the Sample3 and 4 projects are not in the solution file? Weird. Fixed. > So, if I start and configure the Apollo client, I will see the...

> So, if I want to resolve `username` from `review.author`, Apollo will send an HTTP request with the user id to the Users microservice? What if there is a list...

It should. Technically there should still be a minimum of one field, `_services`, which is automatically added to the query type. `AddFederation` should add this before running schema validation checks....

> I'm still learning federation basics, but I noticed the federation subgraph can define a schema with [types only](https://www.apollographql.com/docs/federation/federated-types/overview/#subgraph-schemas) (`Reviews` schema) and without any query field. Will GraphQL.NET allow such...

@vadymkutsenko Thanks for testing - it's very encouraging! > app.UseGraphQL doesn't work Makes sense - probably because the GraphQL.Server.Transports.AspNetCore package referenced ISchema inside the NuGet GraphQL.dll and you have compiled...

@gao-artur This PR now only contains additional tests, some created by me, others by @Mithras .

Well, we can. Here's some considerations: 1. Immutable classes are not present in .NET Standard so we would to make conditional support based on TFM 2. HashSet/ISet are available in...