Add lots of things

drill-and-practice/services/authService.js

@@ -0,0 +1,11 @@
+import { sql } from "../database/database.js";
+
+const findUser = async (email) => {
+  return await sql`SELECT * FROM users WHERE email = ${email}`;
+};
+
+const createUser = async (email, password) => {
+  return await sql`INSERT INTO users (email, password) VALUES (${email}, ${password})`;
+};
+
+export { findUser, createUser };