adds aws demo

aws.js

@@ -0,0 +1,46 @@
+const AWS = require('aws-sdk')
+require('dotenv').config()
+
+const credentials = {
+   accessKeyId: process.env.AWS_ACCESS_KEY_ID,
+   secretAccessKey: process.env.AWS_SECRET_KEY,
+}
+
+const useLocal = process.env.NODE_ENV !== 'production'
+
+const bucketName = process.env.AWS_BUCKET_NAME
+
+const s3client = new AWS.S3({
+   credentials,
+   /**
+    * When working locally, we'll use the Localstack endpoints. This is the one for S3.
+    * A full list of endpoints for each service can be found in the Localstack docs.
+    */
+   endpoint: useLocal ? 'http://localhost:4572' : undefined,
+   /**
+     * Including this option gets localstack to more closely match the defaults for
+     * live S3. If you omit this, you will need to add the bucketName to the `Key`
+     * property in the upload function below.
+     *
+     * see: https://github.com/localstack/localstack/issues/1180
+     */
+   s3ForcePathStyle: true,
+})
+
+
+const uploadFile = async (data, fileName) =>
+   new Promise((resolve) => {
+      s3client.upload(
+         {
+            Bucket: bucketName,
+            Key: fileName,
+            Body: data,
+         },
+         (err, response) => {
+            if (err) throw err
+            resolve(response)
+         },
+      )
+   })
+
+module.exports = uploadFile