fix empty dict check

Author: tomkralidis

pycsw/stac/api.py

@@ -594,8 +594,8 @@ def items(self, headers_, json_post_data, args, collection='metadata:main'):
         links2 = []
 
         for link in response2.get('links', []):
-            if json_post_data is not None:
-                LOGGER.debug('Adding link body')
+            if json_post_data:
+                LOGGER.debug('Adding link method and body')
                 link['method'] = 'POST'
                 link['body'] = json_post_data
 

tests/functionaltests/suites/stac_api/test_stac_api_functional.py

@@ -171,6 +171,8 @@ def test_items(config):
         assert 'href' in link
         assert 'rel' in link
         assert 'metadata:main' not in link['href']
+        assert 'method' not in link
+        assert 'body' not in link
 
     # test GET KVP requests
     content = json.loads(api.items({}, None, {'bbox': '-180,-90,180,90'})[2])