Writes lambdas for DNSSEC, site features, carbon footprint and more

server/lambda/site-features.js

@@ -0,0 +1,44 @@
+const https = require('https');
+
+exports.handler = async function (event, context) {
+  const { url } = event.queryStringParameters;
+  const apiKey = process.env.BUILT_WITH_API_KEY;
+
+  const errorResponse = (message, statusCode = 444) => {
+    return {
+      statusCode: statusCode,
+      body: JSON.stringify({ error: message }),
+    };
+  };
+
+  if (!url) {
+    return errorResponse('url query parameter is required', 400);
+  }
+
+  const apiUrl = `https://api.builtwith.com/free1/api.json?KEY=${apiKey}&LOOKUP=${encodeURIComponent(url)}`;
+
+  return new Promise((resolve, reject) => {
+    https.get(apiUrl, (res) => {
+      let data = '';
+
+      // A chunk of data has been received.
+      res.on('data', (chunk) => {
+        data += chunk;
+      });
+
+      // The whole response has been received.
+      res.on('end', () => {
+        if(res.statusCode !== 200){
+          resolve(errorResponse(`Request failed with status code: ${res.statusCode}`));
+        } else {
+          resolve({
+            statusCode: 200,
+            body: data,
+          });
+        }
+      });
+    }).on('error', (err) => {
+      resolve(errorResponse(`Error making request: ${err.message}`, 500));
+    });
+  });
+};