Add schemas, endpoints and supporting tests

app/v2/template/get_template.py

@@ -0,0 +1,31 @@
+import uuid
+
+from flask import jsonify, request
+from werkzeug.exceptions import abort
+
+from app import api_user
+from app.dao import templates_dao
+from app.schema_validation import validate
+from app.v2.template import template_blueprint
+from app.v2.template.template_schemas import get_template_by_id_request
+
+
+@template_blueprint.route("/<template_id>", methods=['GET'])
+@template_blueprint.route("/<template_id>/version/<version>", methods=['GET'])
+def get_template_by_id(template_id, version=None):
+    try:
+        casted_id = uuid.UUID(template_id)
+
+        _data = {}
+        _data['id'] = template_id
+        if version:
+            _data['version'] = int(version)
+
+        data = validate(_data, get_template_by_id_request)
+    except ValueError or AttributeError:
+        abort(404)
+
+    template = templates_dao.dao_get_template_by_id_and_service_id(
+        casted_id, api_user.service_id, data.get('version'))
+
+    return jsonify(template.serialize()), 200