FEATURE_SEPARATE_RETRIEVE_DOWNLOAD: added support for updating request outside while loop

1 files changed, 47 insertions, 0 deletions

diff --git a/example-era5-update.py b/example-era5-update.py
new file mode 100755
index 0000000..5749e84
--- /dev/null
+++ b/example-era5-update.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+
+# (C) Copyright 2018 ECMWF.
+#
+# This software is licensed under the terms of the Apache Licence Version 2.0
+# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+# In applying this licence, ECMWF does not waive the privileges and immunities
+# granted to it by virtue of its status as an intergovernmental organisation nor
+# does it submit to any jurisdiction.
+
+import time
+import cdsapi
+
+c = cdsapi.Client(debug=True, wait_until_complete=False)
+
+r = c.retrieve(
+    "reanalysis-era5-single-levels",
+    {
+       "variable": "2t",
+       "product_type": "reanalysis",
+       "date": "2015-12-01",
+       "time": "14:00",
+       "format": "netcdf",
+    },
+)
+
+sleep = 30
+while True:
+    r.update()
+    reply = r.reply
+    r.info("Request ID: %s, state: %s" % (reply['request_id'], reply['state']))
+
+    if reply['state'] == 'completed':
+        break
+    elif reply['state'] in ('queued', 'running'):
+        r.info("Request ID: %s, sleep: %s", reply['request_id'], sleep)
+        time.sleep(sleep)
+    elif reply['state'] in ('failed',):
+        r.error("Message: %s", reply['error'].get('message'))
+        r.error("Reason:  %s", reply['error'].get('reason'))
+        for n in reply.get('error', {}).get('context', {}).get('traceback', '').split('\n'):
+            if n.strip() == '':
+                break
+            r.error("  %s", n)
+        raise Exception("%s. %s." % (reply['error'].get('message'), reply['error'].get('reason')))
+
+r.download("test.nc")