americanexpress · Anushreebasics · Mar 30, 2026 · Mar 31, 2026 · Apr 1, 2026
@@ -3,6 +3,22 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+
+### Bug Fixes
+
+* **isLoading:** added catch for post render edge case ([6e30af6](https://github.com/americanexpress/fetchye/commit/6e30af6af26e1b872911653b7b476605b7ac307d))
+
+
+### Features
+
+* **fetchye-one-app:** add streaming support ([#110](https://github.com/americanexpress/fetchye/issues/110)) ([53185ea](https://github.com/americanexpress/fetchye/commit/53185ea772e43cba0aaa86b2b337267449c97246)), closes [#111](https://github.com/americanexpress/fetchye/issues/111)
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 

@@ -302,6 +302,69 @@ const BookList = ({ genre }) => {
 };
 ```
 
+### Unit Testing and Mocking
+
+Fetchye can be tested with Jest and React Testing Library by rendering a small
+component that uses `useFetchye` and asserting the hook state over time.
+
+```jsx
+import React from 'react';
+import { render, waitFor } from '@testing-library/react';
+import { FetchyeProvider, SimpleCache, useFetchye } from 'fetchye';
+
+const customFetchClient = jest.fn(async () => ({
+  ok: true,
+  status: 200,
+  text: async () => JSON.stringify({
+    name: 'Ada Lovelace',
+  }),
+}));
+
+const customFetcher = async (fetchClient, key, options) => {
+  const response = await fetchClient(key, options);
+  return {
+    payload: {
+      ok: response.ok,
+      status: response.status,
+      body: JSON.parse(await response.text()),
+    },
+    error: undefined,
+  };
+};
+
+it('fetches profile data with a mocked custom fetcher', async () => {
+  let result;
+
+  render(
+    <FetchyeProvider cache={SimpleCache()} fetchClient={customFetchClient}>
+      {React.createElement(() => {
+        result = useFetchye('http://example.com/api/profile', {}, customFetcher);
+        return null;
+      })}
+    </FetchyeProvider>
+  );
+
+  await waitFor(() => expect(result.isLoading).toBe(false));
+  expect(customFetchClient).toHaveBeenCalledWith(
+    'http://example.com/api/profile',
+    {}
+  );
+  expect(result.data.body.name).toBe('Ada Lovelace');
+});
+```
+
+If you are not injecting a custom fetcher, mock `global.fetch` directly:
+
+```jsx
+global.fetch = jest.fn(async () => ({
+  ok: true,
+  status: 200,
+  text: async () => JSON.stringify({
+    name: 'Ada Lovelace',
+  }),
+}));
+```
+
 ### Deferred execution
 
 When you need to delay execution of a `useFetchye` call, you may use
@@ -806,6 +869,7 @@ const ParentComponent = ({ children }) => (
   - [One App Install](#one-app-install)
 - [🤹‍ Usage](#-usage)
   - [Real-World Example](#real-world-example)
+  - [Unit Testing and Mocking](#unit-testing-and-mocking)
   - [Deferred execution](#deferred-execution)
   - [Abort Inflight Requests](#abort-inflight-requests)
   - [Sequential API Execution](#sequential-api-execution)

@@ -1,15 +1,11 @@
 {
   "$schema": "node_modules/lerna/schemas/lerna-schema.json",
   "npmClient": "yarn",
-  "useWorkspaces": true,
-  "packages": [
-    "packages/*"
-  ],
   "command": {
     "version": {
       "conventionalCommits": true,
       "allowBranch": "chore/release-*"
     }
   },
-  "version": "1.8.0"
-}
+  "version": "1.9.0"
+}
@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+**Note:** Version bump only for package fetchye-core
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 **Note:** Version bump only for package fetchye-core

@@ -1,6 +1,6 @@
 {
   "name": "fetchye-core",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Core components of the Fetchye library",
   "license": "Apache-2.0",
   "main": "lib/index.js",

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+**Note:** Version bump only for package fetchye-immutable-cache
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 **Note:** Version bump only for package fetchye-immutable-cache

@@ -1,6 +1,6 @@
 {
   "name": "fetchye-immutable-cache",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Immutable cache library to use with fetchye.",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -42,7 +42,7 @@
     "@babel/core": "7.11.6",
     "babel-preset-amex": "^3.4.1",
     "cross-env": "^7.0.2",
-    "fetchye-test-utils": "^1.8.0",
+    "fetchye-test-utils": "^1.9.0",
     "redux": "^4.0.5",
     "rimraf": "^3.0.2"
   },

@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+
+### Features
+
+* **fetchye-one-app:** add streaming support ([#110](https://github.com/americanexpress/fetchye/issues/110)) ([53185ea](https://github.com/americanexpress/fetchye/commit/53185ea772e43cba0aaa86b2b337267449c97246)), closes [#111](https://github.com/americanexpress/fetchye/issues/111)
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 **Note:** Version bump only for package fetchye-one-app

@@ -27,6 +27,21 @@ const streamActionSpy = jest.spyOn(actions, 'stream');
 const mockDispatch = jest.fn();
 
 describe('streamFetchye', () => {
+  const originalWindow = global.window;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    Object.defineProperty(global, 'window', {
+      value: undefined,
+      configurable: true,
+      writable: true,
+    });
+  });
+
+  afterEach(() => {
+    global.window = originalWindow;
+  });
+
   it('should return a one-app-thunk that dispatches an action resolving to the passed in thunk', async () => {
     expect.assertions(2);
 
@@ -63,4 +78,21 @@ describe('streamFetchye', () => {
     );
     expect(fetchyeThunk).toHaveBeenCalledWith(...fetchyeParams.slice(1));
   });
+
+  it('should not dispatch the stream action on the client', async () => {
+    expect.assertions(1);
+
+    global.window = originalWindow;
+
+    const fetchyeThunk = jest.fn();
+    fetchyeThunk.mockResolvedValue(Symbol('fetchRequest'));
+
+    const fetchyeParams = [fetchyeThunk, Symbol('fetchyeArgs - key'), Symbol('fetchyeArgs - options'), Symbol('fetchyeArgs - fetcher')];
+    const streamFetchyeThunk = streamFetchye(...fetchyeParams);
+    const thunkParams = [mockDispatch, Symbol('getState'), Symbol('fetchClient')];
+    await streamFetchyeThunk(
+      fetchyeThunk, thunkParams[0], thunkParams[1], { fetchClient: thunkParams[2] }
+    );
+    expect(streamActionSpy).not.toHaveBeenCalled();
+  });
 });
@@ -1,6 +1,6 @@
 {
   "name": "fetchye-one-app",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Collection of helpers to aid fetchye integration with One App",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -40,9 +40,9 @@
   ],
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "fetchye-immutable-cache": "^1.8.0",
-    "fetchye-redux-provider": "^1.8.0",
-    "fetchye-test-utils": "^1.8.0",
+    "fetchye-immutable-cache": "^1.9.0",
+    "fetchye-redux-provider": "^1.9.0",
+    "fetchye-test-utils": "^1.9.0",
     "invariant": "^2.2.4",
     "prop-types": "^15.7.2"
   },
@@ -58,7 +58,7 @@
     "@testing-library/react-hooks": "^3.4.2",
     "babel-preset-amex": "^3.4.1",
     "cross-env": "^7.0.2",
-    "fetchye-core": "^1.8.0",
+    "fetchye-core": "^1.9.0",
     "immutable": "^4.0.0-rc.12",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",

@@ -23,15 +23,17 @@ export const streamFetchye = (thunk, key, opts = {}, fetcher = undefined) => asy
   const { hash: computedKey } = computeKey(key, opts);
   const promise = dispatch(thunk(key, opts, fetcher));
 
-  dispatch(
-    stream([
-      {
-        key: computedKey,
-        domain: STREAM_DOMAIN,
-        promise,
-      },
-    ])
-  );
+  if (!global.window) {
+    dispatch(
+      stream([
+        {
+          key: computedKey,
+          domain: STREAM_DOMAIN,
+          promise,
+        },
+      ])
+    );
+  }
 
   return promise;
 };
@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+**Note:** Version bump only for package fetchye-redux-provider
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 

@@ -1,6 +1,6 @@
 {
   "name": "fetchye-redux-provider",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Redux provider for fetchye.",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -43,7 +43,7 @@
     "@testing-library/react": "^11.0.4",
     "babel-preset-amex": "^3.4.1",
     "cross-env": "^7.0.2",
-    "fetchye": "^1.8.0",
+    "fetchye": "^1.9.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "rimraf": "^3.0.2"

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+**Note:** Version bump only for package fetchye-test-utils
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 **Note:** Version bump only for package fetchye-test-utils

@@ -1,6 +1,6 @@
 {
   "name": "fetchye-test-utils",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Core components of the Fetchye library",
   "license": "Apache-2.0",
   "main": "lib/index.js",

@@ -3,6 +3,22 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/americanexpress/fetchye/compare/v1.8.0...v1.9.0) (2026-03-30)
+
+
+### Bug Fixes
+
+* **isLoading:** added catch for post render edge case ([6e30af6](https://github.com/americanexpress/fetchye/commit/6e30af6af26e1b872911653b7b476605b7ac307d))
+
+
+### Features
+
+* **fetchye-one-app:** add streaming support ([#110](https://github.com/americanexpress/fetchye/issues/110)) ([53185ea](https://github.com/americanexpress/fetchye/commit/53185ea772e43cba0aaa86b2b337267449c97246)), closes [#111](https://github.com/americanexpress/fetchye/issues/111)
+
+
+
+
+
 # [1.8.0](https://github.com/americanexpress/fetchye/compare/v1.7.0...v1.8.0) (2025-11-26)
 
 ### Features

@@ -1,6 +1,6 @@
 {
   "name": "fetchye",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "If you know how to use Fetch, you know how to use Fetchye [fetch-yae]. Simple React Hooks, Centralized Cache, Infinitely Extensible.",
   "license": "Apache-2.0",
   "main": "lib/index.js",
@@ -53,7 +53,7 @@
   ],
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "fetchye-core": "^1.8.0",
+    "fetchye-core": "^1.9.0",
     "object-hash": "^2.0.3",
     "prop-types": "^15.7.2"
   },
@@ -67,7 +67,7 @@
     "@testing-library/react": "^11.0.4",
     "babel-preset-amex": "^3.4.1",
     "cross-env": "^7.0.2",
-    "fetchye-test-utils": "^1.8.0",
+    "fetchye-test-utils": "^1.9.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-redux": "^7.2.1",