fix connection type

Author: saihaj

src/connection/__tests__/connection-test.ts

@@ -55,7 +55,6 @@ const userType: GraphQLObjectType = new GraphQLObjectType({
 
 const { connectionType: friendConnection } = connectionDefinitions({
   name: 'Friend',
-  // @ts-expect-error TODO FIXME
   nodeType: new GraphQLNonNull(userType),
   resolveNode: (edge) => allUsers[edge.node],
   edgeFields: () => ({
@@ -73,7 +72,6 @@ const { connectionType: friendConnection } = connectionDefinitions({
 });
 
 const { connectionType: userConnection } = connectionDefinitions({
-  // @ts-expect-error TODO FIXME
   nodeType: new GraphQLNonNull(userType),
   resolveNode: (edge) => allUsers[edge.node],
 });

src/connection/connection.ts

@@ -9,7 +9,7 @@ import {
 } from 'graphql';
 
 import type {
-  GraphQLNamedType,
+  GraphQLOutputType,
   GraphQLFieldConfigMap,
   GraphQLFieldResolver,
   Thunk,
@@ -73,7 +73,7 @@ export interface ConnectionArguments {
 
 interface ConnectionConfig {
   name?: string;
-  nodeType: GraphQLNamedType | GraphQLNonNull<GraphQLNamedType>;
+  nodeType: GraphQLOutputType | GraphQLNonNull<GraphQLOutputType>;
   resolveNode?: GraphQLFieldResolver<any, any>;
   resolveCursor?: GraphQLFieldResolver<any, any>;
   edgeFields?: Thunk<GraphQLFieldConfigMap<any, any>>;
@@ -104,20 +104,21 @@ export function connectionDefinitions(
   const edgeType = new GraphQLObjectType({
     name: name + 'Edge',
     description: 'An edge in a connection.',
-    // @ts-expect-error TODO FIXME
-    fields: () => ({
-      node: {
-        type: nodeType,
-        resolve: config.resolveNode,
-        description: 'The item at the end of the edge',
-      },
-      cursor: {
-        type: new GraphQLNonNull(GraphQLString),
-        resolve: config.resolveCursor,
-        description: 'A cursor for use in pagination',
-      },
-      ...resolveMaybeThunk(config.edgeFields ?? {}),
-    }),
+    fields(): GraphQLFieldConfigMap<unknown, unknown> {
+      return {
+        node: {
+          type: nodeType,
+          resolve: config.resolveNode,
+          description: 'The item at the end of the edge',
+        },
+        cursor: {
+          type: new GraphQLNonNull(GraphQLString),
+          resolve: config.resolveCursor,
+          description: 'A cursor for use in pagination',
+        },
+        ...resolveMaybeThunk(config.edgeFields ?? {}),
+      };
+    },
   });
 
   const connectionType = new GraphQLObjectType({