add node upload preset demo.

Author: bradgarropy

examples/node-image-upload/upload-preset.js

@@ -0,0 +1,18 @@
+require('dotenv').config()
+const cloudinary = require('cloudinary').v2;
+
+cloudinary.config({
+  cloud_name: process.env.CLOUDINARY_CLOUD_NAME,
+  api_key: process.env.CLOUDINARY_API_KEY,
+  api_secret: process.env.CLOUDINARY_API_SECRET,
+});
+
+(async function run() {
+  const image = './images/brian-mcgowan-I0fDR8xtApA-unsplash.jpg';
+  const uploadPreset = process.env.CLOUDINARY_UPLOAD_PRESET
+
+  const result = await cloudinary.uploader.upload(image, {upload_preset: uploadPreset});
+
+  console.log(`Successfully uploaded ${image}`);
+  console.log(`> Result: ${result.secure_url}`);
+})();