diff --git a/sdx_controller/controllers/topology_controller.py b/sdx_controller/controllers/topology_controller.py
index f2c479b..2b63604 100644
--- a/sdx_controller/controllers/topology_controller.py
+++ b/sdx_controller/controllers/topology_controller.py
@@ -20,7 +20,7 @@ def get_topology():  # noqa: E501
 
     # TODO: this is a workaround because of the way we read values
     # from MongoDB; refactor and test this more.
-    if topo_val is None:
+    if not topo_val:
         return None
 
     return topo_val["latest_topo"]
@@ -55,3 +55,11 @@ def topology_version(topology_id):  # noqa: E501
     :rtype: Topology
     """
     return "do some magic!"
+
+
+def get_topology_domains():
+    domain_list = db_instance.read_from_db("domains", "domain_list")
+    if not domain_list:
+        return []
+
+    return domain_list["domain_list"]
diff --git a/sdx_controller/swagger/swagger.yaml b/sdx_controller/swagger/swagger.yaml
index 671dd2a..d40c2de 100644
--- a/sdx_controller/swagger/swagger.yaml
+++ b/sdx_controller/swagger/swagger.yaml
@@ -103,6 +103,26 @@ paths:
         "404":
           description: Topology not found
       x-openapi-router-controller: sdx_controller.controllers.topology_controller
+  /topology/domain:
+    get:
+      tags:
+      - topology
+      summary: List all domains
+      description: Returns a list of all domains
+      operationId: get_topology_domains
+      responses:
+        "200":
+          description: ok
+          content:
+            text/plain:
+              schema:
+                type: string
+                x-content-type: text/plain
+        "400":
+          description: Invalid ID supplied
+        "404":
+          description: Topology not found
+      x-openapi-router-controller: sdx_controller.controllers.topology_controller
   /node:
     get:
       tags: