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Description

SchemaParser currently does not process schema definitions which can include directive information.

Use Cases

Apollo Federation v2 relies on a schema @link directive to link definitions from external specification to the local schema. Gateway requires this link information to determine whether Federation v2 features can be used or it has to fallback to the v1 logic.

extend schema @link(url: "https://specs.apollo.dev/federation/v2.0", import: ["@key", "@shareable"])

See https://github.com/apollographql/apollo-federation-subgraph-compatibility/ for example federation integration.