Add mutation through GraphiQL

graphql/db.json

@@ -1,11 +1,39 @@
 {
   "users": [
-    { "id": "23", "firstName": "Bill", "age": 20, "companyId": "1" },
-    { "id": "40", "firstName": "Alex", "age": 40, "companyId": "2" },
-    { "id": "41", "firstName": "Nick", "age": 40, "companyId": "2" }
+    {
+      "id": "23",
+      "firstName": "Bill",
+      "age": 20,
+      "companyId": "1"
+    },
+    {
+      "id": "40",
+      "firstName": "Alex",
+      "age": 40,
+      "companyId": "2"
+    },
+    {
+      "id": "41",
+      "firstName": "Nick",
+      "age": 40,
+      "companyId": "2"
+    },
+    {
+      "firstName": "Anthony",
+      "age": 26,
+      "id": "yOTVhLU"
+    }
   ],
   "companies": [
-    { "id": "1", "name": "Apple", "description": "iphone" },
-    { "id": "2", "name": "Google", "description": "search" }
+    {
+      "id": "1",
+      "name": "Apple",
+      "description": "iphone"
+    },
+    {
+      "id": "2",
+      "name": "Google",
+      "description": "search"
+    }
   ]
-}
+}

graphql/schema/schema.js

@@ -6,7 +6,8 @@ const {
   GraphQLString,
   GraphQLInt,
   GraphQLSchema,
-  GraphQLList
+  GraphQLList,
+  GraphQLNonNull
 } = graphql;
 
 const CompanyType = new GraphQLObjectType({
@@ -69,17 +70,19 @@ const mutation = new GraphQLObjectType({
     addUser: {
       type: UserType,
       args: {
-        firstName: { type: GraphQLString },
-        age: { type: GraphQLInt },
+        firstName: { type: new GraphQLNonNull(GraphQLString) },
+        age: { type: new GraphQLNonNull(GraphQLInt) },
         companyId: { type: GraphQLString }
       },
-      resolve() {
-
+      resolve(parentValue, { firstName, age }) {
+        return axios.post(`http://localhost:3000/users`, { firstName, age })
+          .then(res => res.data);
       }
     }
   }
 });
 
 module.exports = new GraphQLSchema({
-  query: RootQuery
+  query: RootQuery,
+  mutation
 });