qr download api success

backend/serverless/Lambda/qrdownload.py

@@ -1,21 +1,27 @@
 import json
 import boto3
 import base64
+from botocore.exceptions import ClientError
+
 client=boto3.client('s3')
 
 def lambda_handler(event, context):
+    print(event)
 
     bucket_name='arcombat-qr'
     body_dict = json.loads(event['body'])
     image_file_name=body_dict['email']
-
-    response = client.get_object(
-    Bucket=bucket_name,
-    Key=image_file_name+'.png',
-)
-    image_file_to_be_downloaded=response['Body'].read()
+
+    try:
+        response = client.generate_presigned_url('get_object',
+                                                    Params={'Bucket': bucket_name,
+                                                            'Key': image_file_name+'.png'},
+                                                    ExpiresIn=18000)
+    except ClientError as e:
+        logging.error(e)
+        return None
+
     return {
         'statusCode': 200,
-        'body':base64.b64encode(image_file_to_be_downloaded) ,
-        'isBase64Encoded': True
+        'body': json.dumps({'presigned_url': response}),
     }