Add Apollo Federation V2 support (#2900)

Author: emileriksson

.changeset/khaki-terms-call.md

@@ -0,0 +1,9 @@
+---
+'@graphql-inspector/commands': minor
+'@graphql-inspector/loaders': minor
+'@graphql-inspector/core': minor
+'@graphql-inspector/cli': minor
+---
+
+Apollo Federation v2 support. Introduced built-in Federation v2 directives and a new CLI flag
+--federationV2 to enable processing schemas that use them.

packages/commands/commands/src/index.ts

@@ -38,6 +38,7 @@ export interface GlobalArgs {
   leftHeader?: string[];
   rightHeader?: string[];
   federation?: boolean;
+  federationV2?: boolean;
   aws?: boolean;
   method?: string;
 }

packages/commands/coverage/src/index.ts

@@ -106,6 +106,7 @@ export default createCommand<
       const silent = args.silent;
       const { headers, token } = parseGlobalArgs(args);
       const apolloFederation = args.federation || false;
+      const apolloFederationV2 = args.federationV2 || false;
       const aws = args.aws || false;
       const method = args.method?.toUpperCase() || 'POST';
 
@@ -117,6 +118,7 @@ export default createCommand<
           method,
         },
         apolloFederation,
+        apolloFederationV2,
         aws,
       );
       const documents = await loaders.loadDocuments(args.documents);

packages/commands/diff/src/index.ts

@@ -137,6 +137,7 @@ export default createCommand<
         const oldSchemaPointer = args.oldSchema;
         const newSchemaPointer = args.newSchema;
         const apolloFederation = args.federation || false;
+        const apolloFederationV2 = args.federationV2 || false;
         const aws = args.aws || false;
         const method = args.method?.toUpperCase() || 'POST';
         const { headers, leftHeaders, rightHeaders, token } = parseGlobalArgs(args);
@@ -158,6 +159,7 @@ export default createCommand<
             method,
           },
           apolloFederation,
+          apolloFederationV2,
           aws,
         );
         const newSchema = await loaders.loadSchema(
@@ -168,6 +170,7 @@ export default createCommand<
             method,
           },
           apolloFederation,
+          apolloFederationV2,
           aws,
         );
 

packages/commands/introspect/src/index.ts

@@ -89,6 +89,7 @@ export default createCommand<
       const output = args.write!;
       const comments = args.comments || false;
       const apolloFederation = args.federation || false;
+      const apolloFederationV2 = args.federationV2 || false;
       const aws = args.aws || false;
       const method = args.method?.toUpperCase() || 'POST';
 
@@ -100,6 +101,7 @@ export default createCommand<
           method,
         },
         apolloFederation,
+        apolloFederationV2,
         aws,
       );
 

packages/commands/serve/src/index.ts

@@ -43,6 +43,7 @@ export default createCommand<
     async handler(args) {
       const { headers, token } = parseGlobalArgs(args);
       const apolloFederation = args.federation || false;
+      const apolloFederationV2 = args.federationV2 || false;
       const aws = args.aws || false;
       const method = args.method?.toUpperCase() || 'POST';
 
@@ -54,6 +55,7 @@ export default createCommand<
           method,
         },
         apolloFederation,
+        apolloFederationV2,
         aws,
       );
 

packages/commands/similar/src/index.ts

@@ -117,6 +117,7 @@ export default createCommand<
       const type = args.name;
       const threshold = args.threshold;
       const apolloFederation = args.federation || false;
+      const apolloFederationV2 = args.federationV2 || false;
       const aws = args.aws || false;
       const method = args.method?.toUpperCase() || 'POST';
 
@@ -128,6 +129,7 @@ export default createCommand<
           method,
         },
         apolloFederation,
+        apolloFederationV2,
         aws,
       );
 

packages/commands/validate/src/index.ts

@@ -278,6 +278,8 @@ export default createCommand<
       const apollo = args.apollo || false;
       const aws = args.aws || false;
       const apolloFederation = args.federation || false;
+      const apolloFederationV2 = args.federationV2 || false;
+
       const method = args.method?.toUpperCase() || 'POST';
       const maxDepth = args.maxDepth == null ? undefined : args.maxDepth;
       const maxAliasCount = args.maxAliasCount == null ? undefined : args.maxAliasCount;
@@ -311,6 +313,7 @@ export default createCommand<
           method,
         },
         apolloFederation,
+        apolloFederationV2,
         aws,
       );
       const documents = await loaders.loadDocuments(args.documents, {