graphql: override validate function for compatibility with class-validator (#396)

Author: mo4islona

common/changes/@subsquid/graphql-server/fix-SDKTL-1_class_validator_2025-05-28-07-46.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@subsquid/graphql-server",
+      "comment": "override validate function to make it compatible with the latest class-validator package",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@subsquid/graphql-server"
+}

common/config/rush/pnpm-lock.yaml

@@ -48,7 +48,7 @@
   },
   "peerDependencies": {
     "@subsquid/big-decimal": "^1.0.0",
-    "class-validator": "^0.14.0",
+    "class-validator": "^0.14.2",
     "type-graphql": "^1.2.0-rc.1",
     "typeorm": "^0.3.17"
   },

graphql/graphql-server/package.json

@@ -1,5 +1,6 @@
 import {GraphQLSchema} from 'graphql'
 import {buildSchema, ContainerType, ResolverData} from 'type-graphql'
+import {validateSync} from 'class-validator'
 import type {EntityManager} from 'typeorm'
 import {BigDecimalScalar, BigInteger, Bytes, DateTime} from './scalars'
 import {TypeormOpenreaderContext} from './typeorm'
@@ -23,9 +24,14 @@ export async function loadCustomResolvers(mod: string): Promise<GraphQLSchema> {
         resolvers: [mod],
         scalarsMap,
         container: resolverData => new CustomResolversContainer(resolverData),
-        validate: {
-            forbidUnknownValues: false
-        }
+        validate: ((argValue) => {
+            const errors = validateSync(argValue!, {
+                forbidUnknownValues: false
+            });
+            if (errors.length) {
+                throw errors[0];
+            }
+        })
     })
 }
 

graphql/graphql-server/src/resolvers.ts

@@ -67,3 +67,11 @@ export class PingPong {
         return msg
     }
 }
+
+@Resolver()
+export class ArgResolver {
+    @Query(() => Boolean, { nullable: false })
+    stringArray(@Arg('ids', () => [String]) ids: string[]): boolean {
+        return true
+    }
+}