Improve support for Apollo Federation 2.0

[patrick91]

Description

While looking at #2044 I found some issues with our support for apollo federation, this PR addresses that, it also improves Mypy and Pyright support

• Split up tests into multiple files
• Add a link directive
• Add federation directives support for input and interface
• Automatically add the link directive on the schema based on usage
• Decide if we should keep printing the directives (we do that for v1)
• Add opt-in into v2
• check if we have all the directives and that they are defined correctly
• docs
• federation support for scalars, enums, enum values and unions

Closes #1827

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Documentation

[codecov]

Codecov Report

Merging #2047 (ef54052) into main (85d9383) will increase coverage by 0.02%.
The diff coverage is 98.72%.

@@            Coverage Diff             @@
##             main    #2047      +/-   ##
==========================================
+ Coverage   98.07%   98.09%   +0.02%     
==========================================
  Files         147      152       +5     
  Lines        5909     6095     +186     
  Branches     1114     1160      +46     
==========================================
+ Hits         5795     5979     +184     
  Misses         58       58              
- Partials       56       58       +2     

[patrick91]

/pre-release

[botberry]

Pre-release

👋

Pre-release 0.124.0.dev.1659690947 [73f6de5] has been released on PyPi! 🚀
You can try it by doing:

poetry add strawberry-graphql==0.124.0.dev.1659690947

[patrick91]

/pre-release

[patrick91]

/pre-release

[botberry]

Thanks for adding the RELEASE.md file!

Here's a preview of the changelog:

---

This release adds full support for Apollo Federation 2.0. To opt-in you need to
pass enable_federation_2=True to strawberry.federation.Schema, like in the
following example:

@strawberry.federation.type(keys=["id"])
class User:
    id: strawberry.ID

@strawberry.type
class Query:
    user: User

schema = strawberry.federation.Schema(query=Query, enable_federation_2=True)

This release also improves type checker support for the federation.

---

Here's the preview release card for twitter:

Here's the tweet text:

🆕 Release (next) is out! With full support for Apollo Federation 2! @apollographql

Thanks to @patrick91 for the PR and @vamshiaruru0 for helping with testing ❤️

Get it here 👉 https://github.com/strawberry-graphql/strawberry/releases/tag/(next)

Read more about Federation 2 here: https://www.apollographql.com/blog/announcement/backend/announcing-federation-2/

[patrick91]

/pre-release