From 5658905dee0d01b3cd57c69e7293f23f1707b0d1 Mon Sep 17 00:00:00 2001
From: Rafael Ferreira <rafa@rafasf.com>
Date: Sat, 1 Nov 2025 09:04:03 +0100
Subject: [PATCH] Add support to send variables for GraphQL queries

---
 graphql.go      |  3 ++-
 graphql_test.go | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/graphql.go b/graphql.go
index 41c64d06..18fd6c9a 100644
--- a/graphql.go
+++ b/graphql.go
@@ -22,7 +22,8 @@ type (
 	}
 
 	GraphQLQuery struct {
-		Query string `json:"query"`
+		Query     string         `json:"query"`
+		Variables map[string]any `json:"variables,omitempty"`
 	}
 
 	GenericGraphQLErrors struct {
diff --git a/graphql_test.go b/graphql_test.go
index c32ef57f..5ff9b188 100644
--- a/graphql_test.go
+++ b/graphql_test.go
@@ -16,6 +16,7 @@ func TestGraphQL_Do_Success(t *testing.T) {
 	mux, client := setup(t)
 	mux.HandleFunc("/api/graphql", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, http.MethodPost)
+		testJSONBody(t, r, `{ "query": "query { project(fullPath: \"gitlab-org/gitlab\") { id } }" }`)
 		fmt.Fprint(w, `
 			{
 				"data": {
@@ -42,6 +43,45 @@ func TestGraphQL_Do_Success(t *testing.T) {
 	assert.Equal(t, "any-id", response.Data.Project.ID)
 }
 
+func TestGraphQL_Do_Success_With_Variables(t *testing.T) {
+	t.Parallel()
+
+	// GIVEN
+	mux, client := setup(t)
+	mux.HandleFunc("/api/graphql", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, http.MethodPost)
+		testJSONBody(t, r, `{ "query": "query ($projectPath: ID!) { project(fullPath: $projectPath) { id } }", "variables": { "projectPath": "gitlab-org/gitlab" } }`)
+		fmt.Fprint(w, `
+			{
+				"data": {
+					"project": {
+						"id": "any-id"
+					}
+				}
+			}
+		`)
+	})
+
+	// WHEN
+	var response struct {
+		Data struct {
+			Project struct {
+				ID string `json:"id"`
+			} `json:"project"`
+		} `json:"data"`
+	}
+	_, err := client.GraphQL.Do(
+		GraphQLQuery{
+			Query:     `query ($projectPath: ID!) { project(fullPath: $projectPath) { id } }`,
+			Variables: map[string]any{"projectPath": "gitlab-org/gitlab"},
+		},
+		&response)
+
+	// THEN
+	require.NoError(t, err)
+	assert.Equal(t, "any-id", response.Data.Project.ID)
+}
+
 func TestGraphQL_Do_ErrorWithMessages(t *testing.T) {
 	t.Parallel()
 
-- 
GitLab