basic set import works

src/models/setModel.js

@@ -0,0 +1,17 @@
+const db = require('../config/db');
+
+async function upsertSet(set) {
+  const { set_name, set_code, num_of_cards, tcg_date } = set;
+
+  const sql = `
+    INSERT INTO sets (set_name, set_code, num_of_cards, tcg_date)
+    VALUES (?, ?, ?, ?)
+    ON DUPLICATE KEY UPDATE
+      set_name = VALUES(set_name),
+      num_of_cards = VALUES(num_of_cards),
+      tcg_date = VALUES(tcg_date)
+  `;
+  await db.execute(sql, [set_name, set_code, num_of_cards, tcg_date]);
+}
+
+module.exports = { upsertSet };