diff --git a/service/microservice.py b/service/microservice.py
index e9c8341..82e4296 100755
--- a/service/microservice.py
+++ b/service/microservice.py
@@ -5,9 +5,6 @@
 import falcon
 import requests
 
-CLOUDSTORAGE_URL = os.environ.get('CLOUDSTORAGE_URL')
-CLOUDSTORAGE_API_KEY = os.environ.get('CLOUDSTORAGE_API_KEY')
-
 def start_service():
     """Start this service
     set SENTRY_DSN environmental variable to enable logging with Sentry
@@ -22,11 +19,21 @@ def start_service():
 def cloud_storage_service(_req, resp):
     """Send the request through to the cloudstorage microservice"""
     path = urlparse(_req.uri).path[1:]
+
+    # determine whether to use amazon s3 or azure blob storage
+    # Use 'az' at beginning of the path to signal that file is from azure
+    # eg. https://domain.com/az/some_file.pdf
+    microservice_url = os.environ.get('CLOUDSTORAGE_URL') # default to s3
+
+    if path[0:3] == 'az/':
+        microservice_url = microservice_url.replace('1.0', '2.0', 1)
+        path = path[3:]
+
     response = requests.get(
-        CLOUDSTORAGE_URL,
+        microservice_url,
         params={
             'name':path,
-            'apikey':CLOUDSTORAGE_API_KEY
+            'apikey':os.environ.get('CLOUDSTORAGE_API_KEY')
         }
     )
     resp.status = falcon.get_http_status(response.status_code)
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_service.py b/tests/test_service.py
index d654ffe..a6a56ed 100755
--- a/tests/test_service.py
+++ b/tests/test_service.py
@@ -28,7 +28,6 @@ def test_endpoint(client, mock_env):
     # pylint: disable=unused-argument
     """Test the endpoint"""
 
-    # pdf happy path
     with patch('service.microservice.requests.get') as mock_get:
         mock_get.return_value.status_code = 200
         mock_get.return_value.headers = {'Content-Type':'application/pdf'}
@@ -36,14 +35,22 @@ def test_endpoint(client, mock_env):
             content = f.read()
             mock_get.return_value.content = content
 
+            # pdf happy path amazon s3
             response = client.simulate_get('/dummy.pdf')
             assert response.status_code == 200
             assert response.headers['Content-Type'] == 'application/pdf'
             assert response.content == content
 
+            # happy path azure blob storage
+            response = client.simulate_get('/az/dummy.pdf')
+            assert response.status_code == 200
+            assert response.headers['Content-Type'] == 'application/pdf'
+            assert response.content == content
+
     # 404 file not found
     with patch('service.microservice.requests.get') as mock_get:
         mock_get.return_value.status_code = 404
+        mock_get.return_value.content = "File not found"
 
         response = client.simulate_get('/file_that_no_exists')
         assert response.status_code == 404