From 6dcd10b10ab2af43cfd4ec5f02af81459970431c Mon Sep 17 00:00:00 2001
From: Tom Kralidis <tomkralidis@gmail.com>
Date: Wed, 25 Aug 2021 06:34:39 -0400
Subject: [PATCH] test for item prev and next links on item queries (#752)
 (#757)

---
 pygeoapi/api.py   | 28 ++++++++++++++++++----------
 tests/test_api.py |  2 ++
 2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/pygeoapi/api.py b/pygeoapi/api.py
index 5a67891..2557092 100644
--- a/pygeoapi/api.py
+++ b/pygeoapi/api.py
@@ -1832,16 +1832,24 @@ class API:
                                     request.locale),
             'href': '{}/collections/{}'.format(
                 self.config['server']['url'], dataset)
-        }, {
-            'rel': 'prev',
-            'type': 'application/geo+json',
-            'href': uri
-            }, {
-            'rel': 'next',
-            'type': 'application/geo+json',
-            'href': uri
-            }
-        ]
+        }]
+
+        if 'prev' in content:
+            content['links'].append({
+                'rel': 'prev',
+                'type': FORMAT_TYPES[request.format],
+                'href': '{}/collections/{}/items/{}?f={}'.format(
+                    self.config['server']['url'], dataset,
+                    content['prev'], request.format)
+            })
+        if 'next' in content:
+            content['links'].append({
+                'rel': 'next',
+                'type': FORMAT_TYPES[request.format],
+                'href': '{}/collections/{}/items/{}?f={}'.format(
+                    self.config['server']['url'], dataset,
+                    content['next'], request.format)
+            })
 
         # Set response language to requested provider locale
         # (if it supports language) and/or otherwise the requested pygeoapi
diff --git a/tests/test_api.py b/tests/test_api.py
index 2324e23..2cd0483 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -724,6 +724,8 @@ def test_get_collection_item(config, api_):
     feature = json.loads(response)
 
     assert feature['properties']['stn_id'] == '35'
+    assert 'prev' not in feature['links']
+    assert 'next' not in feature['links']
 
 
 def test_get_collection_item_json_ld(config, api_):