fix: custom scalar for date to fix #19

Author: rwieruch

server/package-lock.json

@@ -20,6 +20,7 @@
     "dotenv": "^6.1.0",
     "express": "^4.16.4",
     "graphql": "^14.0.2",
+    "graphql-iso-date": "^3.6.1",
     "graphql-resolvers": "^0.2.2",
     "jsonwebtoken": "^8.3.0",
     "pg": "^7.5.0",

server/package.json

@@ -1,4 +1,14 @@
+import { GraphQLDateTime } from 'graphql-iso-date';
+
 import userResolvers from '../resolvers/user';
 import messageResolvers from '../resolvers/message';
 
-export default [userResolvers, messageResolvers];
+const customScalarResolver = {
+  Date: GraphQLDateTime,
+};
+
+export default [
+  customScalarResolver,
+  userResolvers,
+  messageResolvers,
+];

server/src/resolvers/index.js

@@ -4,6 +4,8 @@ import userSchema from './user';
 import messageSchema from './message';
 
 const linkSchema = gql`
+  scalar Date
+
   type Query {
     _: Boolean
   }

server/src/schema/index.js

@@ -24,7 +24,7 @@ export default gql`
   type Message {
     id: ID!
     text: String!
-    createdAt: String!
+    createdAt: Date!
     user: User!
   }