1 files changed, 38 insertions, 0 deletions
diff --git a/app/assets/javascripts/graphql_shared/utils.js b/app/assets/javascripts/graphql_shared/utils.js
index 5487aeb9391..813e21b6ce9 100644
--- a/app/assets/javascripts/graphql_shared/utils.js
+++ b/app/assets/javascripts/graphql_shared/utils.js
@@ -14,3 +14,41 @@ export const MutationOperationMode = {
   Remove: 'REMOVE',
   Replace: 'REPLACE',
 };
+
+/**
+ * Possible GraphQL entity types.
+ */
+export const TYPE_GROUP = 'Group';
+
+/**
+ * Ids generated by GraphQL endpoints are usually in the format
+ * gid://gitlab/Groups/123. This method takes a type and an id
+ * and interpolates the 2 values into the expected GraphQL ID format.
+ *
+ * @param {String} type The entity type
+ * @param {String|Number} id The id value
+ * @returns {String}
+ */
+export const convertToGraphQLId = (type, id) => {
+  if (typeof type !== 'string') {
+    throw new TypeError(`type must be a string; got ${typeof type}`);
+  }
+
+  if (!['number', 'string'].includes(typeof id)) {
+    throw new TypeError(`id must be a number or string; got ${typeof id}`);
+  }
+
+  return `gid://gitlab/${type}/${id}`;
+};
+
+/**
+ * Ids generated by GraphQL endpoints are usually in the format
+ * gid://gitlab/Groups/123. This method takes a type and an
+ * array of ids and tranforms the array values into the expected
+ * GraphQL ID format.
+ *
+ * @param {String} type The entity type
+ * @param {Array} ids An array of id values
+ * @returns {Array}
+ */
+export const convertToGraphQLIds = (type, ids) => ids.map(id => convertToGraphQLId(type, id));