extract lib

lib/api.js

@@ -0,0 +1,10 @@
+import { resolve, join } from "path";
+import { readFileSync } from "fs";
+export const getTemplate = (slug) => {
+  const templateDirectory = resolve(process.cwd(), "email");
+  const emailTemplate = readFileSync(
+    join(templateDirectory, slug, "template.mjml"),
+    "utf8"
+  );
+  return emailTemplate;
+};

pages/api/contact.ts

@@ -1,16 +1,10 @@
-const { join, resolve } = require("path");
-const { readFileSync } = require("fs");
 import type { NextApiRequest, NextApiResponse } from "next";
+import { getTemplate } from "../../lib/api";
 
 export default async (req: NextApiRequest, res: NextApiResponse) => {
   const { slug } = req.query;
-  const templateDirectory = resolve(process.cwd(), "email");
-  const emailTemplate = readFileSync(
-    join(templateDirectory, slug, "template.mjml"),
-    "utf8"
-  );
 
   res.status(200).json({
-    content: emailTemplate,
+    content: getTemplate(slug),
   });
 };