support @composeDirective #228
Description
Apollo Federation v2.1 introduced new @composeDirective directive that allows users to specify directives that should be preserved in the supergraph composition (by default composition strips out most directives from supergraph).
extend schema
@link(
url: "https://specs.apollo.dev/federation/v2.3",
import: ["@composeDirective", "@extends", "@external", "@key", "@inaccessible", "@interfaceObject", "@override", "@provides", "@requires", "@shareable", "@tag"]
)
@link(url: "https://myspecs.dev/myCustomDirective/v1.0", import: ["@custom"])
@composeDirective(name: "@custom")
// will be present in the supergraph definition
directive @custom on OBJECT
type Product @custom @key(fields: "id")
id: ID!
// other fields omitted for clarity
}Additional resources:
New directive functionality can be tested using Apollo Federation Subgraph Compatibility NPX script (and Github Action). Example integration project is already provided in the subgraph compatibility testing repository.
Do you have any Federation questions? Join Apollo Discord community.