Nested field with argument in @requires (#132)

Author: enisdenjo

gateways/hive-gateway/install.sh

@@ -1,2 +1,2 @@
 # https://github.com/graphql-hive/gateway/releases
-curl -sSL https://graphql-hive.com/install-gateway.sh | sh -s "1.14.2"
+curl -sSL https://graphql-hive.com/install-gateway.sh | sh -s "1.15.0"

src/test-suites/requires-with-argument/a.subgraph.ts

@@ -19,12 +19,23 @@ export default createSubgraph("a", {
           price(currency: "USD") weight
           """
         )
+      category: Category @external
+      isExpensiveCategory: Boolean
+        @requires(
+          fields: """
+          category { averagePrice(currency: "USD") }
+          """
+        )
+    }
+
+    type Category @external {
+      averagePrice(currency: String!): Int
     }
   `,
   resolvers: {
     Product: {
       __resolveReference(
-        key: { upc: string; price: number; weight: number } | { upc: string },
+        key: { upc: string; price: number; weight: number } | { upc: string }
       ) {
         const product = products.find((p) => p.upc === key.upc);
 
@@ -37,16 +48,21 @@ export default createSubgraph("a", {
             upc: product.upc,
             weight: key.weight,
             price: key.price,
+            category: product.category,
           };
         }
 
         return {
           upc: product.upc,
+          category: product.category,
         };
       },
       shippingEstimate(product: { price: number; weight: number }) {
         return product.price * product.weight * 10;
       },
+      isExpensiveCategory(product: { category: { averagePrice: number } }) {
+        return product.category.averagePrice > 11;
+      },
     },
   },
 });

src/test-suites/requires-with-argument/b.subgraph.ts

@@ -15,6 +15,11 @@ export default createSubgraph("b", {
       name: String
       price(currency: String!): Int
       weight: Int
+      category: Category
+    }
+
+    type Category {
+      averagePrice(currency: String!): Int
     }
   `,
   resolvers: {
@@ -25,6 +30,7 @@ export default createSubgraph("b", {
           name: p.name,
           price: p.price,
           weight: p.weight,
+          category: p.category,
         }));
       },
     },
@@ -41,6 +47,7 @@ export default createSubgraph("b", {
           name: product.name,
           price: product.price,
           weight: product.weight,
+          category: product.category,
         };
       },
     },

src/test-suites/requires-with-argument/data.ts

@@ -4,12 +4,18 @@ export const products = [
     name: "p-name-1",
     price: 11,
     weight: 1,
+    category: {
+      averagePrice: 11,
+    },
   },
   {
     upc: "p2",
     name: "p-name-2",
     price: 22,
     weight: 2,
+    category: {
+      averagePrice: 22,
+    },
   },
 ];
 

src/test-suites/requires-with-argument/test.ts

@@ -8,6 +8,7 @@ export default [
           upc
           name
           shippingEstimate
+          isExpensiveCategory
         }
       }
     `,
@@ -18,11 +19,13 @@ export default [
             upc: "p1",
             name: "p-name-1",
             shippingEstimate: 110,
+            isExpensiveCategory: false,
           },
           {
             upc: "p2",
             name: "p-name-2",
             shippingEstimate: 440,
+            isExpensiveCategory: true,
           },
         ],
       },