Some refactoring. dev script, graphql dir.

backend/graphql/graphql.typings.ts

@@ -0,0 +1,35 @@
+
+/*
+ * -------------------------------------------------------
+ * THIS FILE WAS AUTOMATICALLY GENERATED (DO NOT MODIFY)
+ * -------------------------------------------------------
+ */
+
+/* tslint:disable */
+/* eslint-disable */
+
+export class CreateUserInput {
+    email: string;
+    password: string;
+}
+
+export class User {
+    id: string;
+    email: string;
+    time_joined: number;
+}
+
+export abstract class IQuery {
+    abstract users(): Nullable<User>[] | Promise<Nullable<User>[]>;
+
+    abstract user(id: string): Nullable<User> | Promise<Nullable<User>>;
+}
+
+export abstract class IMutation {
+    abstract createUser(createUserInput: CreateUserInput): User | Promise<User>;
+
+    abstract removeUser(id: string): Nullable<User> | Promise<Nullable<User>>;
+}
+
+export type DateTime = any;
+type Nullable<T> = T | null;