Add Mailchimp support

docs/README.md

@@ -68,6 +68,7 @@ There are currently two different drivers available to store captured user data.
 
 * Webhooks
 * Google Sheets
+* Mailchimp
 
 ### Webhooks
 
@@ -124,6 +125,16 @@ To configure Google Sheets the following environment variables must be set
 2. Add headings for the data you want to see in the sheet such as `name`, `email` etc. These headings must match the `name` attribute of the inputs in the html form that the users are submitting when they conncect to the hotspot.
 3. note the Google Sheets ID - from the sheets URL after `/d/` and before `/edit`
 
+#### Mailchimp
+
+Allows you to automatically add guests to a Mailchimp list.
+
+Settings are as follows:
+
+* `MAILCHIMP_API_KEY`: Your Mailchimp API key.
+* `MAILCHIMP_SERVER_PREFIX`: The server prefix for your Mailchimp account (e.g., us1, us2, etc.).
+* `MAILCHIMP_LIST_ID`: The ID of the Mailchimp list to which you want to add subscribers.
+
 ## Bind Mounts
 
 ### Custom Auth Page

package.json

@@ -24,6 +24,7 @@
   },
   "homepage": "https://github.com/woodjme/unifi-hotspot#readme",
   "dependencies": {
+    "@mailchimp/mailchimp_marketing": "^3.0.80",
     "axios": "^1.6.0",
     "body-parser": "^1.20.0",
     "express": "^4.17.2",

src/helpers/logAuthDrivers.js

@@ -1,5 +1,6 @@
 const axios = require('axios')
 const { GoogleSpreadsheet } = require('google-spreadsheet')
+const mailchimp = require('@mailchimp/mailchimp_marketing');
 
 module.exports = {
   webhook: async (formData) => {
@@ -45,5 +46,30 @@ module.exports = {
     } else {
       console.error('Skipping Google Sheets - required env vars not set')
     }
+  },
+  mailchimp: async (formData) => {
+    // Add email to Mailchimp list
+    if (process.env.MAILCHIMP_API_KEY &&
+      process.env.MAILCHIMP_SERVER_PREFIX &&
+      process.env.MAILCHIMP_LIST_ID) {
+      try {
+        mailchimp.setConfig({
+          apiKey: process.env.MAILCHIMP_API_KEY,
+          server: process.env.MAILCHIMP_SERVER_PREFIX
+        });
+
+        const response = await mailchimp.lists.addListMember(process.env.MAILCHIMP_LIST_ID, {
+          email_address: formData.email,
+          status: 'subscribed'
+        });
+
+        return response;
+      } catch (err) {
+        console.error(err);
+        console.error('Mailchimp Failed');
+      }
+    } else {
+      console.error('Skipping Mailchimp - required env vars not set');
+    }
   }
 }