fix

app.py

@@ -29,7 +29,22 @@ import vertexai.preview.generative_models as generative_models
 import time
 import typing_extensions as typing
 import os
-os.environ["GOOGLE_APPLICATION_CREDENTIALS"]
+import json
+import tempfile
+
+# Retrieve the JSON string from the environment variable
+google_creds_json = os.getenv('GOOGLE_APPLICATION_CREDENTIALS_JSON')
+
+if google_creds_json:
+    # Create a temporary file to store the credentials
+    with tempfile.NamedTemporaryFile(delete=False) as temp_file:
+        temp_file.write(google_creds_json.encode('utf-8'))
+        temp_file_path = temp_file.name
+
+    # Set the environment variable to point to this temporary file
+    os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = temp_file_path
+else:
+    raise ValueError("GOOGLE_APPLICATION_CREDENTIALS_JSON environment variable is not set.")
 vertexai.init(project="wubble2024", location="asia-southeast1")
 torch.set_default_device("cpu")
 # Initialize the text-to-image pipeline