Query complexity

examples/simple-usage/graphql-query-complexity.d.ts

@@ -0,0 +1 @@
+declare module "graphql-query-complexity";

examples/simple-usage/index.ts

@@ -1,7 +1,7 @@
 import "reflect-metadata";
 import { GraphQLServer, Options } from "graphql-yoga";
 import { buildSchema } from "../../src";
-
+import queryComplexity from "graphql-query-complexity";
 import { RecipeResolver } from "./recipe-resolver";
 
 async function bootstrap() {
@@ -18,6 +18,15 @@ async function bootstrap() {
     port: 4000,
     endpoint: "/graphql",
     playground: "/playground",
+    validationRules: req => [
+      queryComplexity({
+        maximumComplexity: 1000,
+        variables: req.query.variables,
+        onComplete: (complexity: number) => {
+          console.log("Query Complexity:", complexity);
+        },
+      }),
+    ],
   };
 
   // Start the server

examples/simple-usage/recipe-type.ts

@@ -2,15 +2,15 @@ import { Field, ObjectType, Int, Float } from "../../src";
 
 @ObjectType({ description: "Object representing cooking recipe" })
 export class Recipe {
-  @Field()
+  @Field({ complexity: 5 })
   title: string;
 
   @Field(type => String, { nullable: true, deprecationReason: "Use `description` field instead" })
   get specification(): string | undefined {
     return this.description;
   }
 
-  @Field({ nullable: true, description: "The recipe description with preparation info" })
+  @Field({ complexity: 5, nullable: true, description: "The recipe" })
   description?: string;
 
   @Field(type => [Int])