Clean up getPublicIp() functions

example/package.json

@@ -16,8 +16,8 @@
     "test": "npx sls invoke -f s3"
   },
   "devDependencies": {
-    "aws-sdk": "2.290.0",
-    "serverless": "1.41.0",
+    "aws-sdk": "2.465.0",
+    "serverless": "1.44.1",
     "serverless-vpc-plugin": "smoketurner/serverless-vpc-plugin#master"
   }
 }

example/s3.js

@@ -12,28 +12,19 @@ const { BUCKET_NAME } = process.env;
  * @return {Promise}
  */
 function getPublicIp() {
+  const options = {
+    host: 'api.ipify.org',
+    port: 80,
+    path: '/',
+  };
   return new Promise((resolve, reject) => {
-    const options = {
-      host: 'api.ipify.org',
-      port: 80,
-      path: '/',
-    };
-    http
-      .get(options, res => {
-        res.setEncoding('utf8');
-
-        let body = '';
-        res.on('data', chunk => {
-          body += chunk;
-        });
-
-        res.on('end', () => {
-          resolve(body);
-        });
-      })
-      .on('error', err => {
-        reject(err);
-      });
+    const req = http.get(options, res => {
+      const buffers = [];
+      res.on('data', data => buffers.push(data));
+      res.once('end', () => resolve(Buffer.concat(buffers).toString()));
+      res.once('error', reject);
+    });
+    req.once('error', reject);
   });
 }
 

example/serverless.yml

@@ -2,7 +2,7 @@ service: sls-vpc-example
 
 provider:
   name: aws
-  runtime: nodejs8.10
+  runtime: nodejs10.x
   stage: ${opt:stage, 'dev'}
   region: ${opt:region, 'us-east-1'}
   versionFunctions: false