Feature httpx transport working with trio (#455)

docs/code_examples/httpx_async_trio.py

@@ -0,0 +1,34 @@
+import trio
+
+from gql import Client, gql
+from gql.transport.httpx import HTTPXAsyncTransport
+
+
+async def main():
+
+    transport = HTTPXAsyncTransport(url="https://countries.trevorblades.com/graphql")
+
+    # Using `async with` on the client will start a connection on the transport
+    # and provide a `session` variable to execute queries on this connection
+    async with Client(
+        transport=transport,
+        fetch_schema_from_transport=True,
+    ) as session:
+
+        # Execute single query
+        query = gql(
+            """
+            query getContinents {
+              continents {
+                code
+                name
+              }
+            }
+        """
+        )
+
+        result = await session.execute(query)
+        print(result)
+
+
+trio.run(main)

gql/client.py

@@ -22,6 +22,7 @@
 )
 
 import backoff
+from anyio import fail_after
 from graphql import (
     DocumentNode,
     ExecutionResult,
@@ -1532,15 +1533,13 @@ async def _execute(
                     )
 
         # Execute the query with the transport with a timeout
-        result = await asyncio.wait_for(
-            self.transport.execute(
+        with fail_after(self.client.execute_timeout):
+            result = await self.transport.execute(
                 document,
                 variable_values=variable_values,
                 operation_name=operation_name,
                 **kwargs,
-            ),
-            self.client.execute_timeout,
-        )
+            )
 
         # Unserialize the result if requested
         if self.client.schema:

setup.py

@@ -6,6 +6,7 @@
     "graphql-core>=3.3.0a3,<3.4",
     "yarl>=1.6,<2.0",
     "backoff>=1.11.1,<3.0",
+    "anyio>=3.0,<5",
 ]
 
 console_scripts = [