feat(core): allow responseType to be defined by the responseNormalizer

feat(json-api): add json as responseType for the responseNormalizer

packages/core/__tests__/Connector/HttpConnector.test.js

@@ -277,4 +277,39 @@ describe('The axios instance configuration', () => {
   test('that the axios instance contains the globally set configuration', () => {
     expect(connector.axios.defaults.baseURL).toEqual('/test');
   });
+
+  test('that the axios instance response type configuration defaults to json response type', () => {
+    expect(connector.axios.defaults.responseType).toEqual('json');
+  });
+});
+
+describe('The axios instance response type by responseNormalizer', () => {
+  const urlSerializer = jest.fn();
+  const paramsSerializer = jest.fn();
+  const requestSerializer = jest.fn();
+  const responseNormalizer = jest.fn();
+
+  responseNormalizer.responseType = 'xml';
+
+  mockAxios.defaults = {
+    baseURL: '/test',
+    paramsSerializer: null,
+    transformResponse: [],
+    transformRequest: [],
+  };
+  mockAxios.create = jest.fn(() => cloneDeep(mockAxios));
+
+  const connector = HttpConnector.create(
+    mockAxios,
+    {
+      urlSerializer,
+      paramsSerializer,
+      requestSerializer,
+      responseNormalizer,
+    },
+  );
+
+  test('that the axios instance has the xml response type', () => {
+    expect(connector.axios.defaults.responseType).toEqual('xml');
+  });
 });

packages/core/src/Connector/HttpConnector.js

@@ -43,7 +43,7 @@ function HttpConnector(
 ) {
   const axiosInstance = axios.create ? axios.create() : axios;
 
-  axiosInstance.defaults.responseType = 'json';
+  axiosInstance.defaults.responseType = responseNormalizer.responseType || 'json';
   axiosInstance.defaults.paramsSerializer = paramsSerializer;
 
   return {

packages/json-api/src/Response/responseNormalizer.js

@@ -36,7 +36,7 @@ import normalizePaging from './Resource/normalizePaging';
  *
  * @returns {{data: Resource[]|Resource, paging: {count: number, pages: number}}|{data: Resource}}
  */
-export default function responseNormalizer(response) {
+function responseNormalizer(response) {
   if (response.errors) {
     return response;
   }
@@ -65,3 +65,7 @@ export default function responseNormalizer(response) {
     paging: normalizePaging(response),
   };
 }
+
+responseNormalizer.responseType = 'json';
+
+export default responseNormalizer;