try different auth method

app.py

@@ -34,7 +34,9 @@ import uuid #for generating unique filenames
 # GCP credentials stuff
 import json
 import tempfile
-
+import pybase64
+from google.oauth2 import service_account
+import google.auth
 
 load_dotenv()
 
@@ -77,7 +79,14 @@ def get_creds_json():
     return json.loads(creds_json_str)
 
 # pass
-os.environ["GOOGLE_APPLICATION_CREDENTIALS"]= get_creds_json()
+# service_acct_json = open(pdr-imagen-encoded.json')
+service_account_json = pybase64.b64decode(os.getenv("IMAGEN"))
+service_account_info = json.loads(service_account_json)
+credentials = service_account.Credentials.from_service_account_info(service_account_info)
+#os.environ["GOOGLE_APPLICATION_CREDENTIALS"]= get_creds_json()
+project="pdr-imagen"
+aiplatform.init(project=project, credentials=credentials)
+
 
 # pick a random challenge
 def get_challenge():

requirements.txt

@@ -3,4 +3,6 @@ openai==1.2.3
 python-dotenv==1.0.0
 pymongo
 google-cloud-aiplatform>=1.38
-pillow==10.2.0
+pillow==10.2.0
+google==3.0.0
+pybase64==1.3.2