aiohttp transport - optional variables and operation name (graphql-py…

…thon#94)

Fix connecting to servers which do not support setting operationName to "" (graphql-python#92)

gql/transport/aiohttp.py

@@ -103,12 +103,15 @@ async def execute(
  """
 
  query_str = print_ast(document)
- payload = {
+ payload: Dict[str, Any] = {
  "query": query_str,
- "variables": variable_values or {},
- "operationName": operation_name or "",
  }
 
+ if variable_values:
+ payload["variables"] = variable_values
+ if operation_name:
+ payload["operationName"] = operation_name
+
  post_args = {
  "json": payload,
  }

tests/test_aiohttp.py

@@ -222,3 +222,43 @@ async def handler(request):
  africa = continents[0]
 
  assert africa["code"] == "AF"
+
+
+query2_str = """
+ query getEurope ($code: ID!) {
+ continent (code: $code) {
+ name
+ }
+ }
+"""
+
+query2_server_answer = '{"data": {"continent": {"name": "Europe"}}}'
+
+
+@pytest.mark.asyncio
+async def test_aiohttp_query_variable_values(event_loop, aiohttp_server):
+ async def handler(request):
+ return web.Response(text=query2_server_answer, content_type="application/json")
+
+ app = web.Application()
+ app.router.add_route("POST", "/", handler)
+ server = await aiohttp_server(app)
+
+ url = server.make_url("/")
+
+ sample_transport = AIOHTTPTransport(url=url, timeout=10)
+
+ async with Client(transport=sample_transport,) as session:
+
+ params = {"code": "EU"}
+
+ query = gql(query2_str)
+
+ # Execute query asynchronously
+ result = await session.execute(
+ query, variable_values=params, operation_name="getEurope"
+ )
+
+ continent = result["continent"]
+
+ assert continent["name"] == "Europe"