Fix abstract resolver mappings

• Fixes a bug with expanding abstract resolvers, per #157; see #158.
• Incorporates library version into all hashing digests; see #161.
• Allows digest library to be customized with faster alternatives such as Blake3; see #161.
• General library cleanup and refactoring, as tracked in #159.

Subscriptions support

Adds support for subscription operations in #152, with a Rails example in #153. Minimally disruptive API changes:

1. Stitching now returns a GraphQL::Query::Result rather than a raw hash, just like a standard GraphQL execution. If this causes problems in a test, call to_h on the result for the raw hash.

2. Stitching Client.execute can now be invoked with the query as a positional argument rather than a query: kwarg (for parity with GraphQL Ruby). The old kwarg is also still supported.

Fix planner key deduplication

Small updates from #150. Fixes the new key deduplication process from v1.4.0 that isn't compatible with fragments.

Restore non-resolver key matching

The recent v1.4.0 release compromised key matching for outbound-only types, or, merged types without a resolver that can still provide keys. This restores the dynamic field match that made these types work. See #149.

Thanks to @thomasmarshall for the report.

Fix fragment shaping bug

Fixes a bug with fragment shaping due to a missing typename export in the planning process. Thanks to @lish82 for the report in #147. Fixed by #148.

Composite keys and arguments

Large rewrite of resolver internals to support composite key selections and complex argument shapes. See #141.

⚠️ Minor breaking changes:

• Resolver key argument aliases require a simple rewrite into arguments templates:
  • old syntax: @stitch(key: "myArg:myKey")
  • new syntax: @stitch(key: "myKey", arguments: "myArg: $.myKey").
• Regenerate all supergraph exports for latest schema formats.
• Bust all query plan caches for latest plan format.

Send consistent documents + refactors

Rounds up several overdue refactors on library internals, including #134, #136, and #137.

⚠️ Minor breaking changes:

• Regenerate supergraph SDL dumps and increment query plan caching keys while upgrading (#134).
• Rename Supergraph.boundaries calls to Supergraph.resolvers (#136).

Better support for merged types without resolvers

See #135, thanks to @thomasmarshall for the suggestion.

Improved handling of resolver types

• #130: Fixes abstract resolver definitions passing through Supergraph import/export. Thanks @thomasmarshall.
• #131: Improvements to @stitch directive resolver mappings:
  • Multiple arguments attempt to match by name to the key used.
  • Abstract resolvers may specify a typeName to target specific types with specific keys.

GraphQL v2.3.0 compatibility

v1.2.3

v1.2.3