README.md in quilt_rails-1.12.2 vs README.md in quilt_rails-1.13.0

- old
+ new

@@ -6,61 +6,51 @@ - [Server-side-rendering](#server-side-rendering) - [Quick start](#quick-start) - [Generate Rails boilerplate](#generate-rails-boilerplate) - [Add Ruby dependencies](#add-ruby-dependencies) - - [Generate Quilt boilerplate](#generate-quilt-boilerplate) + - [Generate app boilerplate](#generate-app-boilerplate) - [Try it out](#try-it-out) - [Manual Install](#manual-installation) - - [Generate Rails boilerplate](#generate-rails-boilerplate) - - [Install Dependencies](#install-dependencies) - - [Setup the Rails app](#setup-the-rails-app) - - [Add JavaScript](#add-javascript) - - [Run the server](#run-the-server) - [Application Layout](#application-layout) - [Advanced Use](#advanced-use) - [Testing](#testing) - [Interacting with the request and response in React code](#interacting-with-the-request-and-response-in-react-code) - [Dealing with isomorphic state](#dealing-with-isomorphic-state) - - [Customizing the node server](#customizing-the-node-server) + - [Customizing the Node server](#customizing-the-node-server) - [Fixing rejected CSRF tokens for new user sessions](#fixing-rejected-csrf-tokens-for-new-user-sessions) - [Performance tracking a React app](#performance-tracking-a-react-app) - - [Install dependencies](#install-dependencies) - - [Setup an endpoint for performance reports](setup-an-endpoint-for-performance-reports) - - [Add annotations](#add-annotations) - - [Send the report](#send-the-report) - - [Verify in development](#verify-in-development) - - [Configure StatsD for production](#configure-statsd-for-production) - [API](#api) - - [ReactRenderable](#reactrenderable) - - [Performance](#performance) - - [Engine](#engine) - - [Generators](#generators) ## Server-side-rendering +🗒 This guide is focused on internal Shopify developers with access to [`dev`](https://github.com/Shopify/dev) and [@shopify/sewing-kit](https://github.com/Shopify/sewing-kit). A similar setup can be achieved using the [manual installation](./docs/manual-installation) , and following the [react-server-webpack-plugin](../../packages/react-server-webpack-plugin/README.md) guide. Apps not running on Shopify infrastructure should [disable server-side GraphQL queries](./docs/FAQ.md) to avoid scalability issue. + ### Quick start Using the magic of generators, we can spin up a basic app with a few console commands. #### Generate Rails boilerplate -`dev init` - +With access to [`dev`](https://github.com/Shopify/dev), you can use `dev init` to scaffold out a Rails application. When prompted, choose `rails`. This will generate a basic Rails application scaffold. +Alternatively, you can use [`rails new .`](https://guides.rubyonrails.org/command_line.html#rails-new) to do the same. + +In either case, remove [`webpacker`](./docs/FAQ.md#i-run-into-webpacker-issue-while-setting-up-quilt_rails) before continuing. + #### Add Ruby dependencies `bundle add sewing_kit quilt_rails` This will install our ruby dependencies and update the project's gemfile. -#### Generate Quilt boilerplate +#### Generate app boilerplate -`rails generate quilt:install` +`rails generate quilt_rails:install` -This will install the Node dependencies, provide a basic React app (in TypeScript) and mounts the Quilt engine inside of `config/routes.rb`. +This will install Node dependencies, provide a basic React app (in TypeScript), and mount the Quilt engine in `config/routes.rb`. Basic linting and format configurations are also generated. #### Try it out ```sh dev up @@ -69,178 +59,12 @@ Will run the application, starting up both servers and compiling assets. ### Manual installation -An application can also be setup manually using the following steps. +Follow [this guide](./docs/manual-installation) on how to do manual setup without the generator. -[Generate Rails boilerplate](#generate-rails-boilerplate) - -#### Install dependencies - -```sh -# Add ruby dependencies -bundle add sewing_kit quilt_rails - -# Add core Node dependencies -yarn add @shopify/sewing-kit @shopify/react-server - -# Add React -yarn add react react-dom - -# Add Typescript -yarn add typescript @types/react @types/react-dom -``` - -##### Define typescript config - -```json -// tsconfig.json -{ - "extends": "@shopify/typescript-configs/application.json", - "compilerOptions": { - "baseUrl": ".", - "rootDir": "." - }, - "include": ["app/ui"] -} -``` - -```sh -yarn -dev up -``` - -#### Setup the Rails app - -There are 2 ways to consume this package. - -##### Option 1: Mount the Engine - -Add the engine to `routes.rb`. - -```ruby -# config/routes.rb -Rails.application.routes.draw do - # ... - mount Quilt::Engine, at: '/' -end -``` - -If only a sub-section of routes should respond with the React App, it can be configured using the `at` parameter. - -```ruby -# config/routes.rb -Rails.application.routes.draw do - # ... - mount Quilt::Engine, at: '/path/to/react' -end -``` - -##### Option 2: Add a React controller and routes - -Create a `ReactController` to handle react requests. - -```ruby -class ReactController < ApplicationController - include Quilt::ReactRenderable - - def index - render_react - end -end -``` - -Add routes to default to the `ReactController`. - -```ruby - get '/*path', to: 'react#index' - root 'react#index' -``` - -#### Add JavaScript - -`sewing_kit` looks for the top level component of your React app in `app/ui/index`. The component exported from this component (and any imported JS/CSS) will be built into a `main` bundle, and used to render the initial server-rendered markup. - -We will add a basic entrypoint using React with some HTML. - -```tsx -// app/ui/index.tsx - -import React from 'react'; - -function App() { - return <h1>My application ❤️</h1>; -} - -export default App; -``` - -#### Run the server - -`dev server` - -Will run the application, starting up both servers and compiling assets. - -### Application layout - -#### Minimal - -The basic layout for an app using `quilt_rails` and friends will have a `ui` folder nested inside the normal Rails `app` folder, containing at _least_ an index.js file exporting a React component. - -``` -├── Gemfile (must contain "gem 'sewing_kit" and "gem 'quilt_rails'") -├── package.json (must specify '@shopify/sewing-kit' and `@shopify/react-server` as 'dependencies') -│ -└── app - └── ui - │ └─- index.{js|ts} (exports a React component) - └── controllers - └─- react_controller.rb (see above) -``` - -#### Rails and React - -A more complex application will want a more complex layout. The following shows scalable locations for: - -- Global SCSS settings -- App sections (roughly analogous to Rails routes) -- Components -- Co-located CSS modules -- Co-located unit tests -- Test setup files - -``` -└── app - └── ui - ├─- index.{js|ts} (exports a React component) - ├── styles (optional) - └── shared.scss (common functions/mixins you want available in every scss file. Requires configuring `plugin.sass`'s `autoInclude` option in `sewing-kit.config.js`) - │ - └── tests (optional) - │ └── each-test.{js|ts} - │ └── setup.{js|ts} - └── features (optional) - ├── App - │ ├── index.{js|ts} - │ ├── App.{js|ts}x - │ └── tests - │ └── App.test.{js|ts}x - │ - ├-─ MyComponent - │ ├-─ index.{js|ts} - │ ├-─ MyComponent.{js|ts}x - │ ├── MyComponent.scss (optional; component-scoped CSS styles, mixins, etc) - │ └── tests - │ └── MyComponent.test.{js|ts}x - │ - └── sections (optional; container views that compose presentation components into UI blocks) - └── Home - ├-─ index.{js|ts} - └── Home.{js|ts} -``` - ### Advanced use #### Testing For fast tests with consistent results, test front-end components using the tools provided by sewing-kit instead of Rails integration tests. @@ -353,40 +177,17 @@ render_react(data: {'some_id': 123}) end end ``` -The React server will serialize the provided quilt data using `quilt-data` as the ID. You can then get this serialized data on the client with `getSerialized` from `@shopify/react-html`. +If using the webpack plugin, this will be automatically passed into your application as the `data` prop. ```tsx // app/ui/index.tsx import React from 'react'; -import {getSerialized} from '@shopify/react-html'; -const IS_CLIENT = typeof window !== 'undefined'; - -function App() { - // get the serialized data from the request that was sent through Rails ReactController - const quiltData = IS_CLIENT ? getSerialized<Record<string, any>>('quilt-data') : null; - - // Logs {"some_id":123} - console.log(quiltData); - - return <h1>Data: {quiltData}</h1>; -} - -export default App; -``` - -If using the webpack plugin, this will be done automatically and the data will be passed into your application as the `data` prop. - -```tsx -// app/ui/index.tsx - -import React from 'react'; - function App({data}: {data: Record<string, any>}) { // Logs {"some_id":123} console.log(data); return <h1>Data: {data}</h1>; @@ -417,13 +218,13 @@ With SSR enabled React apps, state must be serialized on the server and deserialized on the client to keep it consistent. When using `@shopify/react-server`, the best tool for this job is [`@shopify/react-html`](https://github.com/Shopify/quilt/tree/master/packages/react-html)'s [`useSerialized`](https://github.com/Shopify/quilt/tree/master/packages/react-html#in-your-application-code) hook. `useSerialized` can be used to implement [universal-providers](https://github.com/Shopify/quilt/tree/master/packages/react-universal-provider#what-is-a-universal-provider-), allowing application code to manage what is persisted between the server and client without adding any custom code to client or server entrypoints. We offer some for common use cases such as [CSRF](https://github.com/Shopify/quilt/tree/master/packages/react-csrf-universal-provider), [GraphQL](https://github.com/Shopify/quilt/tree/master/packages/react-graphql-universal-provider), [I18n](https://github.com/Shopify/quilt/tree/master/packages/react-i18n-universal-provider), and the [Shopify App Bridge](https://github.com/Shopify/quilt/tree/master/packages/react-app-bridge-universal-provider). -#### Customizing the node server +#### Customizing the Node server -By default, sewing-kit bundles in [`@shopify/react-server-webpack-plugin`](../../packages/react-server-webpack-plugin/README.md) for `quilt_rails` applications to get apps up and running fast without needing to manually write any node server code. +By default, sewing-kit bundles in [`@shopify/react-server-webpack-plugin`](../../packages/react-server-webpack-plugin/README.md) for `quilt_rails` applications to get apps up and running fast without needing to manually write any Node server code. If what it provides is not sufficient, a completely custom server can be defined by adding a `server.js` or `server.ts` file to the `app/ui` folder. The simplest way to customize the server is to export the object created by [`@shopify/react-server`](../../packages/react-server/README.md#node-usage)'s `createServer` call in `server.ts` file. ``` └── appeon @@ -476,363 +277,15 @@ end ``` ## Performance tracking a React app -Using [`Quilt::Performance::Reportable`](#performanceReportable) and [@shopify/react-performance](https://www.npmjs.com/package/@shopify/react-performance) it's easy to add performance tracking to apps using[`sewing_kit`](https://github.com/Shopify/sewing-kit/tree/master/gems/sewing_kit#sewing_kit-) for client-side-rendering or `quilt_rails` for server-side-rendering. +To setup performance tracking with your React app with `quilt_rails`. +Follow details guide [here](./docs/performance-tracking). -### Install dependencies - -1. Install the gem (if your app is not already using `quilt_rails`). - -```bash -bundle add quilt_rails -``` - -2. Install `@shopify/react-performance`, the library we will use to annotate our React application and send performance reports to our server. - -```bash -yarn add @shopify/react-performance -``` - -### Setup an endpoint for performance reports - -If your application is not using `Quilt::Engine`, you will need to manually configure the server-side portion of performance tracking. If it _is_ using the engine, the following will be done automatically. - -1. Add a `PerformanceController` and the corresponding routes to your Rails app. - -```ruby -# app/controllers/performance_report_controller.rb - -class PerformanceReportController < ActionController::Base - include Quilt::Performance::Reportable - protect_from_forgery with: :null_session - - def create - process_report - - render(json: { result: 'success' }, status: 200) - rescue ActionController::ParameterMissing => error - render(json: { error: error.message }, status: 422) - end -end -``` - -2. Add a route pointing at the controller. - -```ruby -# config/routes.rb - -post '/performance_report', to: 'performance_report#create' - -# rest of routes -``` - -### Add annotations - -Add a [`usePerformanceMark`](https://github.com/Shopify/quilt/tree/master/packages/react-performance#useperformancemark) call to each of your route-level components. - -```tsx -// app/ui/features/Home/Home.tsx -import {usePerformanceMark} from '@shopify/react-performance'; - -export function Home() { - // tell the library the page has finished rendering completely - usePerformanceMark('complete', 'Home'); - - return <>{/* your Home page JSX goes here*/}</>; -} -``` - -### Send the report - -Add a [`usePerformanceReport`](https://github.com/Shopify/quilt/tree/master/packages/react-performance#usePerformanceReport) call to your top-level `<App />` component. - -```tsx -// app/ui/foundation/App/App.tsx -import {usePerformanceReport} from '@shopify/react-performance'; - -export function App() { - // send the report to the server - usePerformanceReport('/performance_report'); - - return <>{/* your app JSX goes here*/}</>; -} -``` - -For more details on how to use the APIs from `@shopify/react-performance` check out its [documentation](https://github.com/Shopify/quilt/tree/master/packages/react-performance). - -### Verify in development - -By default `quilt_rails` will not send metrics in development mode. To verify your app is setup correctly you can check in your network tab when visiting your application and see that POST requests are sent to `/performance_report`, and recieve a `200 OK` response. - -If you want more insight into what distributions _would_ be sent in production, you can use the `on_distribution` callback provided by the library to setup logging. - -```ruby -# app/controllers/performance_report_controller.rb - -class PerformanceReportController < ActionController::Base - include Quilt::Performance::Reportable - protect_from_forgery with: :null_session - - def create - # customize process_report's behaviour with a block - process_report do |client| - client.on_distribution do |name, value, tags| - # We log out the details of each distribution that would be sent in production. - Rails.logger.debug("Distribution: #{name}, #{value}, #{tags}") - end - end - - render json: { result: 'success' }, status: 200 - rescue ActionController::ParameterMissing => error - render json: { error: error.message, status: 422 } - end -end -``` - -Now you can check your Rails console output and verify that metrics are reported as expected. - -### Configure StatsD for production - -> Attention Shopifolk! If using `dev` your `StatsD` endpoint will already be configured for you in production. You should not need to do the following. ✨ - -To tell `Quilt::Performance::Reportable` where to send it's distributions, setup the environment variables detailed [documentation](https://github.com/Shopify/statsd-instrument#configuration). - ## API -### ReactRenderable +Find all features this gem offer in this [API doc](./docs/api). -The `ReactRenderable` mixin is intended to be used in Rails controllers, and provides only the `render_react` method. This method handles proxying to a running `@shopify/react-server`. +## FAQ -```ruby -class ReactController < ApplicationController - include Quilt::ReactRenderable - - def index - render_react - end -end -``` - -### Performance - -#### Reportable - -The `Quilt::Performance::Reportable` mixin is intended to be used in Rails controllers, and provides only the `process_report` method. This method handles parsing an incoming report from [@shopify/react-performance's](https://www.npmjs.com/package/@shopify/react-performance) `<PerformanceReport />` component (or a custom report in the same format) and sending it to your application's StatsD endpoint as `distribution`s using [`StatsD-Instrument`](https://rubygems.org/gems/statsd-instrument). - -> **Note** `Quilt::Performance::Reportable` does not require you to use the `React::Renderable` mixin, React-Server, or even any server-side-rendering solution at all. It should work perfectly fine for applications using something like `sewing_kit_script_tag` based client-side-rendering. - -```ruby -class PerformanceController < ApplicationController - include Quilt::Performance::Reportable - - def create - process_report - end -end -``` - -The params sent to the controller are expected to be of type `application/json`. Given the following example JSON sent by `@shopify/react-performance`, - -```json -{ - "connection": { - "rtt": 100, - "downlink": 2, - "effectiveType": "3g", - "type": "4g" - }, - "navigations": [ - { - "details": { - "start": 12312312, - "duration": 23924, - "target": "/", - "events": [ - { - "type": "script", - "start": 23123, - "duration": 124 - }, - { - "type": "style", - "start": 23, - "duration": 14 - } - ], - "result": 0 - }, - "metadata": { - "index": 0, - "supportsDetailedTime": true, - "supportsDetailedEvents": true - } - } - ], - "events": [ - { - "type": "ttfb", - "start": 2, - "duration": 1000 - } - ] -} -``` - -given the the above controller input, the library would send the following metrics: - -```ruby -StatsD.distribution('time_to_first_byte', 2, tags: { - browser_connection_type:'3g', -}) -StatsD.distribution('time_to_first_byte', 2, tags: { - browser_connection_type:'3g' , -}) -StatsD.distribution('navigation_complete', 23924, tags: { - browser_connection_type:'3g' , -}) -StatsD.distribution('navigation_usable', 23924, tags: { - browser_connection_type:'3g' , -}) -``` - -##### Default Metrics - -The full list of metrics sent by default are as follows: - -###### For full-page load - -- `AppName.time_to_first_byte`, representing the time from the start of the request to when the server began responding with data. -- `AppName.time_to_first_paint`, representing the time from the start of the request to when the browser rendered anything to the screen. -- `AppName.time_to_first_contentful_paint` representing the time from the start of the request to when the browser rendered meaningful content to the screen. -- `AppName.dom_content_loaded` representing the time from the start of the request to when the browser fired the [DOMContentLoaded](https://developer.mozilla.org/en-US/docs/Web/API/Window/DOMContentLoaded_event) event. -- `AppName.dom_load` representing the time from the start of the request to when the browser fired the [window.load](https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event) event. - -###### For both full-page navigations and client-side page transitions - -- `AppName.navigation_usable`, representing the time it took before for the page to be rendered in a usable state. Usually this does not include data fetching or asynchronous tasks. -- `AppName.navigation_complete` representing the time it took for the page to be fully loaded, including any data fetching which blocks above-the-fold content. -- `AppName.navigation_download_size`, representing the total weight of all client-side assets (eg. CSS, JS, images). This will only be sent if there are any events with a `type` of `script` or `style`. -- `AppName.navigation_cache_effectiveness`, representing what percentage of client-side assets (eg. CSS, JS, images) were returned from the browser's cache. This will only be sent if there are any events with a `type` of `script` or `style`. - -##### Customizing `process_report` with a block - -The behaviour of `process_report` can be customized by manipulating the `Quilt::Performance::Client` instance yielded into its implicit block parameter. - -```ruby -process_report do |client| - # client.on_distribution do .... -end -``` - -#### Client - -The `Quilt::Performance::Client` class is yielded into the block parameter for `process_report`, and is the primary API for customizing what metrics are sent for a given POST. - -##### Client#on_distribution - -The `on_distribution` method takes a block which is run for each distribution (including custom ones) sent during `process_report`. - -The provided callback can be used to easily add logging or other side-effects to your measurements. - -```ruby -client.on_distribution do |metric_name, value, tags| - Rails.logger.debug "#{metric_name}: #{value}, tags: #{tags}" -end -``` - -##### Client#on_navigation - -The `on_navigation` method takes a block which is run once per navigation reported to the performance controller _before_ the default distributions for the navigation are sent. - -The provided callback can be used to add tags to the default `distributions` for a given navigation. - -```ruby -client.on_navigation do |navigation, tags| - # add tags to be sent with each distribution for this navigation - tags[:connection_rtt] = navigation.connection.rtt - tags[:connection_type] = navigation.connection.type - tags[:navigation_target] = navigation.target - - # add a tag to allow filtering out navigations that are too long - # this is useful when you are unable to rule out missing performance marks on some pages - tags[:too_long_dont_read] = navigation.duration > 30.seconds.in_milliseconds -end -``` - -It can also be used to compute and send entirely custom metrics. - -```ruby -client.on_navigation do |navigation, tags| - # calculate and then send an additional distribution - weight = navigation.events_with_size.reduce(0) do |total, event| - total + event.size - end - client.distribution('navigation_total_resource_weight', weight, tags) -end -``` - -##### Client#on_event - -The `on_event` method takes a block which is run once per event reported to the performance controller _before_ the default distributions for the event are sent. - -The provided callback can be used to add tags to the default `distributions` for a given event, or perform other side-effects. - -```ruby -client.on_event do |event, tags| - # add tags to be sent with each distribution for this event - tags[:connection_rtt] = event.connection.rtt - tags[:connection_type] = event.connection.type -end -``` - -### Engine - -`Quilt::Engine` provides: - -- a preconfigured `UiController` which consumes `ReactRenderable` -- a preconfigured `PerformanceReportController` which consumes `Performance::Reportable` -- a `/performance_report` route mapped to `performance_report#index` -- a catch-all index route mapped to the `UiController#index` - -```ruby -# config/routes.rb -Rails.application.routes.draw do - # ... - mount Quilt::Engine, at: '/my-front-end' -end -``` - -The above is the equivalent of - -```ruby - post '/my-front-end/performance_report', to: 'performance_report#create' - get '/my-front-end/*path', to: 'ui#index' - get '/my-front-end', to: 'ui#index' -``` - -### Configuration - -The `configure` method allows customization of the address the service will proxy to for UI rendering. - -```ruby - # config/initializers/quilt.rb - Quilt.configure do |config| - config.react_server_host = "localhost:3000" - config.react_server_protocol = 'https' - end -``` - -### StatsD environment variables - -The `Performance::Reportable` mixin uses [https://github.com/Shopify/statsd-instrument](StatsD-Instrument) to send distributions. For detailed instructions on configuring where it sends data see [the documentation](https://github.com/Shopify/statsd-instrument#configuration). - -### Generators - -#### `quilt:install` - -Installs the Node dependencies, provide a basic React app (in TypeScript) and mounts the Quilt engine in `config/routes.rb`. - -#### `sewing_kit:install` - -Adds a basic `sewing-kit.config.ts` file. +Find your [here](./docs/FAQ).