Add schemas, endpoints and supporting tests

app/v2/template/template_schemas.py

@@ -0,0 +1,41 @@
+from app.models import TEMPLATE_TYPES
+from app.schema_validation.definitions import uuid
+
+
+get_template_by_id_request = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "schema for query parameters allowed when getting list of notifications",
+    "type": "object",
+    "properties": {
+        "id": uuid,
+        "version": {"type": ["integer", "null"], "minimum": 1}
+    },
+    "required": ["id"],
+    "additionalProperties": False,
+}
+
+get_template_by_id_response = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "GET template by id schema response",
+    "type": "object",
+    "title": "reponse v2/template",
+    "properties": {
+        "id": uuid,
+        "type": {"enum": TEMPLATE_TYPES},
+        "created_at": {
+            "format": "date-time",
+            "type": "string",
+            "description": "Date+time created"
+        },
+        "updated_at": {
+            "format": "date-time",
+            "type": "string",
+            "description": "Date+time updated"
+        },
+        "created_by": {"type": "string"},
+        "version": {"type": "integer"},
+        "body": {"type": "string"},
+        "subject": {"type": ["string", "null"]}
+    },
+    "required": ["id", "type", "created_at", "updated_at", "version", "created_by", "body"]
+}