Update app.py

app.py

@@ -27,18 +27,22 @@ from reportlab.lib import colors
 # ---------------------------
 # Authenticate Earth Engine (with HF Secrets)
 # ---------------------------
-import ee, os, json
+import ee, os, tempfile
 
 service_account = os.environ.get("EE_SERVICE_ACCOUNT")   # service account email
-key_json = os.environ.get("EE_PRIVATE_KEY")              # should be one-line JSON
+key_json = os.environ.get("EE_PRIVATE_KEY")              # the JSON text as stored in HF Secrets
 
 if service_account and key_json:
-    key_dict = json.loads(key_json)  # 👈 this only works if EE_PRIVATE_KEY is compact JSON (no line breaks)
-    creds = ee.ServiceAccountCredentials(service_account, key_dict)
+    # Write the JSON string to a temporary file
+    with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False) as f:
+        f.write(key_json)
+        temp_key_path = f.name
+
+    # Authenticate using the file path
+    creds = ee.ServiceAccountCredentials(service_account, temp_key_path)
     ee.Initialize(creds)
 else:
     raise RuntimeError("Earth Engine authentication failed. Did you set HF secrets?")
-
 # Helper Functions
 # ---------------------------
 def _fmt_pct(x):