fix: verify and ensure consistent useStream flag

packages/electrode-react-webapp/lib/react/token-handlers.js

@@ -144,7 +144,7 @@ module.exports = function setup(handlerContext /*, asyncTemplate*/) {
 
   const tokenHandlers = {
     [CONTENT_MARKER]: context => {
-      return context.user.content && context.user.content.html || "";
+      return (context.user.content && context.user.content.html) || "";
     },
 
     [TITLE_MARKER]: () => {

packages/electrode-react-webapp/test/jsx-templates/test1.jsx

@@ -126,7 +126,7 @@ const Template = () => (
             name="MainBody"
             timestamp
             elementId="subapp-mainbody"
-            streaming
+            useStream
             async
             hydrateServerData
             serverSideRendering

packages/electrode-react-webapp/test/spec/jsx/test1-output.txt

@@ -73,7 +73,7 @@ hello
 token process module subapp-web/lib/load not found
 <!-- require(subapp-web/lib/load) END -->
 </div>
-<div class="blah" style="background: green;"><!-- BEGIN require(subapp-web/lib/load) props: {"_concurrent":true,"name":"MainBody","timestamp":true,"elementId":"subapp-mainbody","streaming":true,"async":true,"hydrateServerData":true,"serverSideRendering":true} -->
+<div class="blah" style="background: green;"><!-- BEGIN require(subapp-web/lib/load) props: {"_concurrent":true,"name":"MainBody","timestamp":true,"elementId":"subapp-mainbody","useStream":true,"async":true,"hydrateServerData":true,"serverSideRendering":true} -->
 
 token process module subapp-web/lib/load not found
 <!-- require(subapp-web/lib/load) END -->

packages/subapp-pbundle/lib/framework-lib.js

@@ -66,7 +66,7 @@ class FrameworkLib {
   }
 
   renderTo(element, options) {
-    assert(!options.streaming, "render to stream is not yet supported for preact");
+    assert(!options.useStream, "render to stream is not yet supported for preact");
 
     assert(!options.suspenseSsr, "suspense is not yet supported for preact");
 

packages/subapp-react/lib/framework-lib.js

@@ -59,8 +59,8 @@ class FrameworkLib {
   }
 
   renderTo(element, options) {
-    if (options.streaming) {
-      assert(!options.suspenseSsr, "streaming and suspense SSR together are not supported");
+    if (options.useStream) {
+      assert(!options.suspenseSsr, "useStream and suspense SSR together are not supported");
       if (options.hydrateServerData) {
         return ReactDOMServer.renderToNodeStream(element);
       } else {
@@ -193,7 +193,7 @@ class FrameworkLib {
       `subapp ${this.ref.subApp.name} specified useReactRouter without a StartComponent, \
 and can't generate it because module react-router-dom with StaticRouter is not found`
     );
-    return props2 =>
+    return (props2) =>
       React.createElement(
         ReactRouterDom.StaticRouter,
         props2,

packages/subapp-react/package.json

@@ -88,5 +88,10 @@
     "functions": 100,
     "lines": 100,
     "cache": true
+  },
+  "prettier": {
+    "printWidth": 100,
+    "trailingComma": "none",
+    "arrowParens": "avoid"
   }
 }

packages/subapp-react/test/spec/ssr-framework.spec.js

@@ -9,7 +9,7 @@ const { asyncVerify } = require("run-verify");
 const Redux = require("redux");
 const { connect } = require("react-redux");
 
-describe("SSR React framework", function() {
+describe("SSR React framework", function () {
   it("should setup React framework", () => {
     expect(lib.React).to.be.ok;
     expect(lib.AppContext).to.be.ok;
@@ -92,7 +92,7 @@ describe("SSR React framework", function() {
     expect(res).contains("Hello foo bar");
   });
 
-  it("should render Component with streaming if enabled", () => {
+  it("should render Component with stream if enabled", () => {
     const framework = new lib.FrameworkLib({
       subApp: {
         prepare: () => ({ test: "foo bar" }),
@@ -101,7 +101,7 @@ describe("SSR React framework", function() {
         }
       },
       subAppServer: {},
-      options: { serverSideRendering: true, streaming: true },
+      options: { serverSideRendering: true, useStream: true },
       context: {
         user: {}
       }
@@ -118,7 +118,7 @@ describe("SSR React framework", function() {
     );
   });
 
-  it("should hydrate render Component with streaming if enabled", () => {
+  it("should hydrate render Component with stream if enabled", () => {
     const framework = new lib.FrameworkLib({
       subApp: {
         prepare: () => ({ test: "foo bar" }),
@@ -127,7 +127,7 @@ describe("SSR React framework", function() {
         }
       },
       subAppServer: {},
-      options: { serverSideRendering: true, streaming: true, hydrateServerData: true },
+      options: { serverSideRendering: true, useStream: true, hydrateServerData: true },
       context: {
         user: {}
       }

packages/subapp-server/lib/setup-hapi-routes.js

@@ -172,11 +172,13 @@ async function setupRoutesFromFile(srcDir, server, pluginOpts) {
       });
     }
 
+    const useStream = routeOptions.useStream !== false;
+
     const routeHandler = ReactWebapp.makeRouteHandler(routeOptions);
     const handler = async (request, h) => {
       try {
         const context = await routeHandler({
-          content: { html: "", status: 200, useStream: true },
+          content: { html: "", status: 200, useStream },
           mode: "",
           request
         });
@@ -185,10 +187,7 @@ async function setupRoutesFromFile(srcDir, server, pluginOpts) {
         const status = data.status;
 
         if (status === undefined) {
-          return h
-            .response(data)
-            .type("text/html; charset=UTF-8")
-            .code(200);
+          return h.response(data).type("text/html; charset=UTF-8").code(200);
         } else if (HttpStatus.redirect[status]) {
           return h.redirect(data.path).code(status);
         } else if (HttpStatus.displayHtml[status]) {

packages/subapp-server/src/index-page.jsx

@@ -23,7 +23,7 @@ const RenderSubApps = (props, context) => {
               _concurrent: true,
               elementId,
               timestamp: true,
-              streaming: false,
+              useStream: false,
               async: true,
               serverSideRendering: true
             },

packages/subapp-web/lib/load.js

@@ -12,6 +12,7 @@
  *   - generate code to bootstrap subapp on client
  */
 
+const assert = require("assert");
 const Fs = require("fs");
 const Path = require("path");
 const _ = require("lodash");
@@ -53,7 +54,7 @@ module.exports = function setup(setupContext, { props: setupProps }) {
   // name="Header"
   // async=true
   // defer=true
-  // streaming=true
+  // useStream=true
   // serverSideRendering=true
   // hydrateServerData=false
   // clientSideRendering=false
@@ -189,10 +190,24 @@ Response: ${err || body}`
   loadSubApp();
   prepareSubAppJsBundle();
 
+  const verifyUseStream = props => {
+    if (props.useStream) {
+      const routeStream = setupContext.routeOptions.useStream;
+      assert(
+        routeStream !== false,
+        `subapp '${props.name}' can't set useStream when route options 'useStream' is false.`
+      );
+    }
+  };
+
+  verifyUseStream(setupProps);
+
   const clientProps = JSON.stringify(_.pick(setupProps, ["useReactRouter"]));
 
   return {
     process: (context, { props }) => {
+      verifyUseStream(props);
+
       const { request } = context.user;
 
       if (request.app.webpackDev && subAppLoadTime < request.app.webpackDev.compileTime) {

samples/poc-subapp/README.md

@@ -136,8 +136,8 @@ You can also control how your subapp works from server side to client side for e
 Some of the attributes supported:
 
 - `hydrate` - Enable client side hydration of initial state from server. ie: Use `React.hydrate` API.
-- `streaming` - Use the streaming SSR APIs. ie: `ReactDomServer.renderToNodeStream`.
-- `suspenseSsr` - Support suspense in SSR. No streaming.
+- `useStream` - Use the stream SSR APIs. ie: `ReactDomServer.renderToNodeStream`.
+- `suspenseSsr` - Support suspense in SSR. No stream support.
 
 ## React Router and SPA
 
@@ -195,10 +195,7 @@ const mapStateToProps = state => state;
 
 export default reduxLoadSubApp({
   name: "Home",
-  Component: connect(
-    mapStateToProps,
-    dispatch => ({ dispatch })
-  )(Home),
+  Component: connect(mapStateToProps, dispatch => ({ dispatch }))(Home),
   reduxCreateStore(initialState) {
     return createStore(reducers, initialState);
   }

samples/poc-subapp/TODO.md

@@ -1,4 +1,4 @@
-# Streaming SSR [ ]
+# Streaming SSR [x]
 
 - Enable support for `renderToNodeStream`
 - Enable HTTP streaming
@@ -11,7 +11,7 @@
 - Store bundle load status in `window.webSubApps`
 - When rendering subapp without bundle yet, dynamically load them
 
-# Dynamic SSR [ ]
+# Dynamic SSR [x]
 
 - Allow each route and subapp to dynamically turn on/off SSR for a request
 

samples/poc-subapp/babel.config.js

@@ -0,0 +1,4 @@
+"use strict";
+module.exports = {
+  extends: "@xarc/app-dev/config/babel/babelrc.js"
+};