fix: node.id in example (#154)

Author: artola

examples/production-app/graphql/Node.ts

@@ -30,7 +30,7 @@ export interface GraphQLNode {
  * See: https://graphql.org/learn/global-object-identification/
  *
  * @gqlField
- * @killsParentOnExceptions */
+ * @killsParentOnException */
 export function id(node: GraphQLNode): ID {
   return toGlobalId(node.__typename, node.localID());
 }

examples/production-app/schema.graphql

@@ -16,7 +16,7 @@ interface Node {
   
   See: https://graphql.org/learn/global-object-identification/
   """
-  id: ID
+  id: ID!
 }
 
 input CreateLikeInput {
@@ -72,7 +72,7 @@ type Like implements Node {
   
   See: https://graphql.org/learn/global-object-identification/
   """
-  id: ID
+  id: ID!
   """The user who liked the post."""
   liker: User
   """The post that was liked."""
@@ -124,7 +124,7 @@ type Post implements Node {
   
   See: https://graphql.org/learn/global-object-identification/
   """
-  id: ID
+  id: ID!
   """
   All the likes this post has received.
   **Note:** You can use this connection to access the number of likes.
@@ -178,7 +178,7 @@ type User implements Node {
   
   See: https://graphql.org/learn/global-object-identification/
   """
-  id: ID
+  id: ID!
   """User's name. **Note:** This field is not guaranteed to be unique."""
   name: String
   """

examples/production-app/schema.ts

@@ -32,7 +32,7 @@ export function getSchema(): GraphQLSchema {
                 id: {
                     description: "A globally unique opaque identifier for a node. Can be used to fetch the the\nnode with the `node` or `nodes` fields.\n\nSee: https://graphql.org/learn/global-object-identification/",
                     name: "id",
-                    type: GraphQLID
+                    type: new GraphQLNonNull(GraphQLID)
                 }
             };
         }
@@ -55,7 +55,7 @@ export function getSchema(): GraphQLSchema {
                 id: {
                     description: "A globally unique opaque identifier for a node. Can be used to fetch the the\nnode with the `node` or `nodes` fields.\n\nSee: https://graphql.org/learn/global-object-identification/",
                     name: "id",
-                    type: GraphQLID,
+                    type: new GraphQLNonNull(GraphQLID),
                     resolve(source) {
                         return postIdResolver(source);
                     }
@@ -170,7 +170,7 @@ export function getSchema(): GraphQLSchema {
                 id: {
                     description: "A globally unique opaque identifier for a node. Can be used to fetch the the\nnode with the `node` or `nodes` fields.\n\nSee: https://graphql.org/learn/global-object-identification/",
                     name: "id",
-                    type: GraphQLID,
+                    type: new GraphQLNonNull(GraphQLID),
                     resolve(source) {
                         return userIdResolver(source);
                     }
@@ -225,7 +225,7 @@ export function getSchema(): GraphQLSchema {
                 id: {
                     description: "A globally unique opaque identifier for a node. Can be used to fetch the the\nnode with the `node` or `nodes` fields.\n\nSee: https://graphql.org/learn/global-object-identification/",
                     name: "id",
-                    type: GraphQLID,
+                    type: new GraphQLNonNull(GraphQLID),
                     resolve(source) {
                         return likeIdResolver(source);
                     }