add basic query struct, support 1.12

example/generate_me.go

@@ -16,8 +16,8 @@ type GetViewerResponse = struct {
 
 // GetViewer gets the current user's name.
 func GetViewer(ctx context.Context) (*GetViewerResponse, error) {
-	req, err := http.NewRequestWithContext(
-		ctx, http.MethodPost,
+	req, err := http.NewRequest(
+		http.MethodPost,
 		`https://api.github.com/graphql`,
 		strings.NewReader(`
 "GetViewer gets the current user's name."
@@ -31,6 +31,7 @@ query GetViewer {
 		return nil, err
 	}
 
+	req = req.WithContext(ctx)
 	resp, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return nil, err

example/queries.graphql

@@ -1,6 +1,6 @@
 "GetViewer gets the current user's name."
-query GetUser($login: String!) {
-  User: user(login: $login) {
+query GetViewer {
+  Viewer: viewer {
     Name: name
   }
 }