added Revue support (#397)

feat: add Revue support

pages/api/revue.js

@@ -0,0 +1,30 @@
+// eslint-disable-next-line import/no-anonymous-default-export
+export default async (req, res) => {
+  const { email } = req.body
+
+  if (!email) {
+    return res.status(400).json({ error: 'Email is required' })
+  }
+
+  try {
+    const API_KEY = process.env.REVUE_API_KEY
+    const revueRoute = `${process.env.REVUE_API_URL}subscribers`
+
+    const response = await fetch(revueRoute, {
+      method: 'POST',
+      headers: {
+        Authorization: `Token ${API_KEY}`,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({ email, double_opt_in: false }),
+    })
+
+    if (response.status >= 400) {
+      return res.status(500).json({ error: `There was an error subscribing to the list.` })
+    }
+
+    return res.status(201).json({ error: '' })
+  } catch (error) {
+    return res.status(500).json({ error: error.message || error.toString() })
+  }
+}