get first object in array for building query

Author: Bret Hubbard

src/__tests__/jsonToGraphQLQuery.tests.ts

@@ -500,6 +500,36 @@ describe('jsonToGraphQL()', () => {
         );
     });
 
+    it('handles arrays of strings by adding the key but no values to the query', () => {
+        const query = {
+            query: {
+                Posts: ['test 1', 'test 2', 'test 3'],
+                Lorem: {
+                    id: true
+                },
+                Ipsum: false,
+            }
+        };
+        expect(jsonToGraphQLQuery(query)).to.equal(
+            'query { Posts Lorem { id } }'
+        );
+    });
+
+    it('handles arrays of mixed types by taking the first object of the array', () => {
+        const query = {
+            query: {
+                Posts: [1, null, { id: true, name: true }],
+                Lorem: {
+                    id: true
+                },
+                Ipsum: false,
+            }
+        };
+        expect(jsonToGraphQLQuery(query)).to.equal(
+            'query { Posts { id name } Lorem { id } }'
+        );
+    });
+
     it('handles arrays of string by adding the key but no values to the query', () => {
         const Posts: any[] = [null]
         const query = {

src/jsonToGraphQLQuery.ts

@@ -83,10 +83,8 @@ function convertQuery(node: any, level: number, output: Array<[string, number]>,
             let value = node[key]
             if (typeof value === 'object') {
                 if (Array.isArray(value)) {
-                    if (value[0] && typeof value[0] === 'object') {
-                        value = value[0]
-                    }
-                    else {
+                    value = value.find(item => item && typeof item === 'object')
+                    if (!value) {
                         output.push([`${key}`, level])
                         return
                     }