{"_id":"0726react","_rev":"2-25b79e022c062498ba530cbf4abc868c","name":"0726react","dist-tags":{"latest":"0.1.1"},"versions":{"0.1.1":{"name":"0726react","version":"0.1.1","private":false,"author":{"name":"saisanath"},"dependencies":{"@amcharts/amcharts3-react":"^3.1.0","autoprefixer":"7.1.6","axios":"^0.18.0","babel-core":"6.26.0","babel-eslint":"7.2.3","babel-jest":"20.0.3","babel-loader":"7.1.2","babel-preset-react-app":"^3.1.1","babel-runtime":"6.26.0","case-sensitive-paths-webpack-plugin":"2.1.1","chalk":"1.1.3","css-loader":"0.28.7","dotenv":"4.0.0","dotenv-expand":"4.2.0","eslint":"4.10.0","eslint-config-react-app":"^2.1.0","eslint-loader":"1.9.0","eslint-plugin-flowtype":"2.39.1","eslint-plugin-import":"2.8.0","eslint-plugin-jsx-a11y":"5.1.1","eslint-plugin-react":"7.4.0","extract-text-webpack-plugin":"3.0.2","file-loader":"1.1.5","fs-extra":"3.0.1","html-webpack-plugin":"2.29.0","jest":"20.0.4","object-assign":"4.1.1","postcss-flexbugs-fixes":"3.2.0","postcss-loader":"2.0.8","promise":"8.0.1","raf":"3.4.0","razorpay":"^1.7.1","react":"^16.3.1","react-bootstrap":"^0.32.1","react-cookie":"^2.1.4","react-dev-utils":"^5.0.1","react-dom":"^16.3.1","react-loadable":"^5.4.0","react-particles-js":"^2.1.2","react-redux":"^5.0.7","react-router-dom":"^4.2.2","redux":"^4.0.0","redux-thunk":"^2.2.0","resolve":"1.6.0","socket.io-client":"^2.1.0","style-loader":"0.19.0","sw-precache-webpack-plugin":"0.11.4","sweetalert":"^2.1.0","url-loader":"0.6.2","webpack":"3.8.1","webpack-dev-server":"2.9.4","webpack-manifest-plugin":"1.3.2","whatwg-fetch":"2.0.3"},"scripts":{"start":"SET PORT=8001 && node scripts/start.js","build":"node scripts/build.js","test":"node scripts/test.js --env=jsdom"},"jest":{"collectCoverageFrom":["src/**/*.{js,jsx,mjs}"],"setupFiles":["/config/polyfills.js"],"testMatch":["/src/**/__tests__/**/*.{js,jsx,mjs}","/src/**/?(*.)(spec|test).{js,jsx,mjs}"],"testEnvironment":"node","testURL":"http://localhost","transform":{"^.+\\.(js|jsx|mjs)$":"/node_modules/babel-jest","^.+\\.css$":"/config/jest/cssTransform.js","^(?!.*\\.(js|jsx|mjs|css|json)$)":"/config/jest/fileTransform.js"},"transformIgnorePatterns":["[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"],"moduleNameMapper":{"^react-native$":"react-native-web"},"moduleFileExtensions":["web.js","js","json","web.jsx","jsx","node","mjs"]},"babel":{"presets":["react-app"]},"eslintConfig":{"extends":"react-app"},"description":"This project was bootstrapped with [Create React App](https://github.com/facebookincubator/create-react-app).","_id":"0726react@0.1.1","_shasum":"d70a3b72ec9056baf0d7de1a4ba8f2c76a7f2f87","_from":".","_npmVersion":"3.10.10","_nodeVersion":"6.9.5","_npmUser":{"name":"saisanath_globussoft","email":"saisanath@globussoft.in"},"dist":{"shasum":"d70a3b72ec9056baf0d7de1a4ba8f2c76a7f2f87","tarball":"https://registry.npmjs.org/0726react/-/0726react-0.1.1.tgz","fileCount":385,"unpackedSize":21657559,"npm-signature":"-----BEGIN PGP SIGNATURE-----\r\nVersion: OpenPGP.js v3.0.4\r\nComment: https://openpgpjs.org\r\n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\ns2oa\r\n=FlMf\r\n-----END PGP SIGNATURE-----\r\n","integrity":"sha512-+wfXXKS/JqT5ra5WM7vXQGx/GGV5xveZJjtjTW2RUCW+6nDl1t6FT9dSVVUu5eQO+t11fZ8IJxSyJZdIQNk2Jw==","signatures":[{"keyid":"SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA","sig":"MEYCIQDg3gvr4VHYF3nenaaiHQxRXLSBjORg4YOe9dyEojMpRAIhAM93DA7HMSueBbQ6gC5a2ro4evYSm1mbYL/NPlp6h5sy"}]},"maintainers":[{"name":"saisanath_globussoft","email":"saisanath@globussoft.in"}],"directories":{},"_npmOperationalInternal":{"host":"s3://npm-registry-packages","tmp":"tmp/0726react_0.1.1_1526624361099_0.7522485654643463"},"_hasShrinkwrap":false}},"time":{"created":"2018-05-18T06:19:21.098Z","0.1.1":"2018-05-18T06:19:21.530Z","modified":"2022-06-12T14:05:10.281Z"},"maintainers":[{"name":"saisanath_globussoft","email":"saisanath@globussoft.in"}],"description":"This project was bootstrapped with [Create React App](https://github.com/facebookincubator/create-react-app).","author":{"name":"saisanath"},"readme":"This project was bootstrapped with [Create React App](https://github.com/facebookincubator/create-react-app).\n\nBelow you will find some information on how to perform common tasks.
\nYou can find the most recent version of this guide [here](https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md).\n\n## Table of Contents\n\n- [Updating to New Releases](#updating-to-new-releases)\n- [Sending Feedback](#sending-feedback)\n- [Folder Structure](#folder-structure)\n- [Available Scripts](#available-scripts)\n - [npm start](#npm-start)\n - [npm test](#npm-test)\n - [npm run build](#npm-run-build)\n - [npm run eject](#npm-run-eject)\n- [Supported Browsers](#supported-browsers)\n- [Supported Language Features and Polyfills](#supported-language-features-and-polyfills)\n- [Syntax Highlighting in the Editor](#syntax-highlighting-in-the-editor)\n- [Displaying Lint Output in the Editor](#displaying-lint-output-in-the-editor)\n- [Debugging in the Editor](#debugging-in-the-editor)\n- [Formatting Code Automatically](#formatting-code-automatically)\n- [Changing the Page ``](#changing-the-page-title)\n- [Installing a Dependency](#installing-a-dependency)\n- [Importing a Component](#importing-a-component)\n- [Code Splitting](#code-splitting)\n- [Adding a Stylesheet](#adding-a-stylesheet)\n- [Post-Processing CSS](#post-processing-css)\n- [Adding a CSS Preprocessor (Sass, Less etc.)](#adding-a-css-preprocessor-sass-less-etc)\n- [Adding Images, Fonts, and Files](#adding-images-fonts-and-files)\n- [Using the `public` Folder](#using-the-public-folder)\n - [Changing the HTML](#changing-the-html)\n - [Adding Assets Outside of the Module System](#adding-assets-outside-of-the-module-system)\n - [When to Use the `public` Folder](#when-to-use-the-public-folder)\n- [Using Global Variables](#using-global-variables)\n- [Adding Bootstrap](#adding-bootstrap)\n - [Using a Custom Theme](#using-a-custom-theme)\n- [Adding Flow](#adding-flow)\n- [Adding a Router](#adding-a-router)\n- [Adding Custom Environment Variables](#adding-custom-environment-variables)\n - [Referencing Environment Variables in the HTML](#referencing-environment-variables-in-the-html)\n - [Adding Temporary Environment Variables In Your Shell](#adding-temporary-environment-variables-in-your-shell)\n - [Adding Development Environment Variables In `.env`](#adding-development-environment-variables-in-env)\n- [Can I Use Decorators?](#can-i-use-decorators)\n- [Fetching Data with AJAX Requests](#fetching-data-with-ajax-requests)\n- [Integrating with an API Backend](#integrating-with-an-api-backend)\n - [Node](#node)\n - [Ruby on Rails](#ruby-on-rails)\n- [Proxying API Requests in Development](#proxying-api-requests-in-development)\n - [\"Invalid Host Header\" Errors After Configuring Proxy](#invalid-host-header-errors-after-configuring-proxy)\n - [Configuring the Proxy Manually](#configuring-the-proxy-manually)\n - [Configuring a WebSocket Proxy](#configuring-a-websocket-proxy)\n- [Using HTTPS in Development](#using-https-in-development)\n- [Generating Dynamic `<meta>` Tags on the Server](#generating-dynamic-meta-tags-on-the-server)\n- [Pre-Rendering into Static HTML Files](#pre-rendering-into-static-html-files)\n- [Injecting Data from the Server into the Page](#injecting-data-from-the-server-into-the-page)\n- [Running Tests](#running-tests)\n - [Filename Conventions](#filename-conventions)\n - [Command Line Interface](#command-line-interface)\n - [Version Control Integration](#version-control-integration)\n - [Writing Tests](#writing-tests)\n - [Testing Components](#testing-components)\n - [Using Third Party Assertion Libraries](#using-third-party-assertion-libraries)\n - [Initializing Test Environment](#initializing-test-environment)\n - [Focusing and Excluding Tests](#focusing-and-excluding-tests)\n - [Coverage Reporting](#coverage-reporting)\n - [Continuous Integration](#continuous-integration)\n - [Disabling jsdom](#disabling-jsdom)\n - [Snapshot Testing](#snapshot-testing)\n - [Editor Integration](#editor-integration)\n- [Debugging Tests](#debugging-tests)\n - [Debugging Tests in Chrome](#debugging-tests-in-chrome)\n - [Debugging Tests in Visual Studio Code](#debugging-tests-in-visual-studio-code)\n- [Developing Components in Isolation](#developing-components-in-isolation)\n - [Getting Started with Storybook](#getting-started-with-storybook)\n - [Getting Started with Styleguidist](#getting-started-with-styleguidist)\n- [Publishing Components to npm](#publishing-components-to-npm)\n- [Making a Progressive Web App](#making-a-progressive-web-app)\n - [Opting Out of Caching](#opting-out-of-caching)\n - [Offline-First Considerations](#offline-first-considerations)\n - [Progressive Web App Metadata](#progressive-web-app-metadata)\n- [Analyzing the Bundle Size](#analyzing-the-bundle-size)\n- [Deployment](#deployment)\n - [Static Server](#static-server)\n - [Other Solutions](#other-solutions)\n - [Serving Apps with Client-Side Routing](#serving-apps-with-client-side-routing)\n - [Building for Relative Paths](#building-for-relative-paths)\n - [Azure](#azure)\n - [Firebase](#firebase)\n - [GitHub Pages](#github-pages)\n - [Heroku](#heroku)\n - [Netlify](#netlify)\n - [Now](#now)\n - [S3 and CloudFront](#s3-and-cloudfront)\n - [Surge](#surge)\n- [Advanced Configuration](#advanced-configuration)\n- [Troubleshooting](#troubleshooting)\n - [`npm start` doesn’t detect changes](#npm-start-doesnt-detect-changes)\n - [`npm test` hangs on macOS Sierra](#npm-test-hangs-on-macos-sierra)\n - [`npm run build` exits too early](#npm-run-build-exits-too-early)\n - [`npm run build` fails on Heroku](#npm-run-build-fails-on-heroku)\n - [`npm run build` fails to minify](#npm-run-build-fails-to-minify)\n - [Moment.js locales are missing](#momentjs-locales-are-missing)\n- [Alternatives to Ejecting](#alternatives-to-ejecting)\n- [Something Missing?](#something-missing)\n\n## Updating to New Releases\n\nCreate React App is divided into two packages:\n\n* `create-react-app` is a global command-line utility that you use to create new projects.\n* `react-scripts` is a development dependency in the generated projects (including this one).\n\nYou almost never need to update `create-react-app` itself: it delegates all the setup to `react-scripts`.\n\nWhen you run `create-react-app`, it always creates the project with the latest version of `react-scripts` so you’ll get all the new features and improvements in newly created apps automatically.\n\nTo update an existing project to a new version of `react-scripts`, [open the changelog](https://github.com/facebookincubator/create-react-app/blob/master/CHANGELOG.md), find the version you’re currently on (check `package.json` in this folder if you’re not sure), and apply the migration instructions for the newer versions.\n\nIn most cases bumping the `react-scripts` version in `package.json` and running `npm install` in this folder should be enough, but it’s good to consult the [changelog](https://github.com/facebookincubator/create-react-app/blob/master/CHANGELOG.md) for potential breaking changes.\n\nWe commit to keeping the breaking changes minimal so you can upgrade `react-scripts` painlessly.\n\n## Sending Feedback\n\nWe are always open to [your feedback](https://github.com/facebookincubator/create-react-app/issues).\n\n## Folder Structure\n\nAfter creation, your project should look like this:\n\n```\nmy-app/\n README.md\n node_modules/\n package.json\n public/\n index.html\n favicon.ico\n src/\n App.css\n App.js\n App.test.js\n index.css\n index.js\n logo.svg\n```\n\nFor the project to build, **these files must exist with exact filenames**:\n\n* `public/index.html` is the page template;\n* `src/index.js` is the JavaScript entry point.\n\nYou can delete or rename the other files.\n\nYou may create subdirectories inside `src`. For faster rebuilds, only files inside `src` are processed by Webpack.<br>\nYou need to **put any JS and CSS files inside `src`**, otherwise Webpack won’t see them.\n\nOnly files inside `public` can be used from `public/index.html`.<br>\nRead instructions below for using assets from JavaScript and HTML.\n\nYou can, however, create more top-level directories.<br>\nThey will not be included in the production build so you can use them for things like documentation.\n\n## Available Scripts\n\nIn the project directory, you can run:\n\n### `npm start`\n\nRuns the app in the development mode.<br>\nOpen [http://localhost:3000](http://localhost:3000) to view it in the browser.\n\nThe page will reload if you make edits.<br>\nYou will also see any lint errors in the console.\n\n### `npm test`\n\nLaunches the test runner in the interactive watch mode.<br>\nSee the section about [running tests](#running-tests) for more information.\n\n### `npm run build`\n\nBuilds the app for production to the `build` folder.<br>\nIt correctly bundles React in production mode and optimizes the build for the best performance.\n\nThe build is minified and the filenames include the hashes.<br>\nYour app is ready to be deployed!\n\nSee the section about [deployment](#deployment) for more information.\n\n### `npm run eject`\n\n**Note: this is a one-way operation. Once you `eject`, you can’t go back!**\n\nIf you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.\n\nInstead, it will copy all the configuration files and the transitive dependencies (Webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.\n\nYou don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.\n\n## Supported Browsers\n\nBy default, the generated project uses the latest version of React.\n\nYou can refer [to the React documentation](https://reactjs.org/docs/react-dom.html#browser-support) for more information about supported browsers.\n\n## Supported Language Features and Polyfills\n\nThis project supports a superset of the latest JavaScript standard.<br>\nIn addition to [ES6](https://github.com/lukehoban/es6features) syntax features, it also supports:\n\n* [Exponentiation Operator](https://github.com/rwaldron/exponentiation-operator) (ES2016).\n* [Async/await](https://github.com/tc39/ecmascript-asyncawait) (ES2017).\n* [Object Rest/Spread Properties](https://github.com/sebmarkbage/ecmascript-rest-spread) (stage 3 proposal).\n* [Dynamic import()](https://github.com/tc39/proposal-dynamic-import) (stage 3 proposal)\n* [Class Fields and Static Properties](https://github.com/tc39/proposal-class-public-fields) (part of stage 3 proposal).\n* [JSX](https://facebook.github.io/react/docs/introducing-jsx.html) and [Flow](https://flowtype.org/) syntax.\n\nLearn more about [different proposal stages](https://babeljs.io/docs/plugins/#presets-stage-x-experimental-presets-).\n\nWhile we recommend using experimental proposals with some caution, Facebook heavily uses these features in the product code, so we intend to provide [codemods](https://medium.com/@cpojer/effective-javascript-codemods-5a6686bb46fb) if any of these proposals change in the future.\n\nNote that **the project only includes a few ES6 [polyfills](https://en.wikipedia.org/wiki/Polyfill)**:\n\n* [`Object.assign()`](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign) via [`object-assign`](https://github.com/sindresorhus/object-assign).\n* [`Promise`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) via [`promise`](https://github.com/then/promise).\n* [`fetch()`](https://developer.mozilla.org/en/docs/Web/API/Fetch_API) via [`whatwg-fetch`](https://github.com/github/fetch).\n\nIf you use any other ES6+ features that need **runtime support** (such as `Array.from()` or `Symbol`), make sure you are including the appropriate polyfills manually, or that the browsers you are targeting already support them.\n\nAlso note that using some newer syntax features like `for...of` or `[...nonArrayValue]` causes Babel to emit code that depends on ES6 runtime features and might not work without a polyfill. When in doubt, use [Babel REPL](https://babeljs.io/repl/) to see what any specific syntax compiles down to.\n\n## Syntax Highlighting in the Editor\n\nTo configure the syntax highlighting in your favorite text editor, head to the [relevant Babel documentation page](https://babeljs.io/docs/editors) and follow the instructions. Some of the most popular editors are covered.\n\n## Displaying Lint Output in the Editor\n\n>Note: this feature is available with `react-scripts@0.2.0` and higher.<br>\n>It also only works with npm 3 or higher.\n\nSome editors, including Sublime Text, Atom, and Visual Studio Code, provide plugins for ESLint.\n\nThey are not required for linting. You should see the linter output right in your terminal as well as the browser console. However, if you prefer the lint results to appear right in your editor, there are some extra steps you can do.\n\nYou would need to install an ESLint plugin for your editor first. Then, add a file called `.eslintrc` to the project root:\n\n```js\n{\n \"extends\": \"react-app\"\n}\n```\n\nNow your editor should report the linting warnings.\n\nNote that even if you edit your `.eslintrc` file further, these changes will **only affect the editor integration**. They won’t affect the terminal and in-browser lint output. This is because Create React App intentionally provides a minimal set of rules that find common mistakes.\n\nIf you want to enforce a coding style for your project, consider using [Prettier](https://github.com/jlongster/prettier) instead of ESLint style rules.\n\n## Debugging in the Editor\n\n**This feature is currently only supported by [Visual Studio Code](https://code.visualstudio.com) and [WebStorm](https://www.jetbrains.com/webstorm/).**\n\nVisual Studio Code and WebStorm support debugging out of the box with Create React App. This enables you as a developer to write and debug your React code without leaving the editor, and most importantly it enables you to have a continuous development workflow, where context switching is minimal, as you don’t have to switch between tools.\n\n### Visual Studio Code\n\nYou would need to have the latest version of [VS Code](https://code.visualstudio.com) and VS Code [Chrome Debugger Extension](https://marketplace.visualstudio.com/items?itemName=msjsdiag.debugger-for-chrome) installed.\n\nThen add the block below to your `launch.json` file and put it inside the `.vscode` folder in your app’s root directory.\n\n```json\n{\n \"version\": \"0.2.0\",\n \"configurations\": [{\n \"name\": \"Chrome\",\n \"type\": \"chrome\",\n \"request\": \"launch\",\n \"url\": \"http://localhost:3000\",\n \"webRoot\": \"${workspaceRoot}/src\",\n \"sourceMapPathOverrides\": {\n \"webpack:///src/*\": \"${webRoot}/*\"\n }\n }]\n}\n```\n>Note: the URL may be different if you've made adjustments via the [HOST or PORT environment variables](#advanced-configuration).\n\nStart your app by running `npm start`, and start debugging in VS Code by pressing `F5` or by clicking the green debug icon. You can now write code, set breakpoints, make changes to the code, and debug your newly modified code—all from your editor.\n\nHaving problems with VS Code Debugging? Please see their [troubleshooting guide](https://github.com/Microsoft/vscode-chrome-debug/blob/master/README.md#troubleshooting).\n\n### WebStorm\n\nYou would need to have [WebStorm](https://www.jetbrains.com/webstorm/) and [JetBrains IDE Support](https://chrome.google.com/webstore/detail/jetbrains-ide-support/hmhgeddbohgjknpmjagkdomcpobmllji) Chrome extension installed.\n\nIn the WebStorm menu `Run` select `Edit Configurations...`. Then click `+` and select `JavaScript Debug`. Paste `http://localhost:3000` into the URL field and save the configuration.\n\n>Note: the URL may be different if you've made adjustments via the [HOST or PORT environment variables](#advanced-configuration).\n\nStart your app by running `npm start`, then press `^D` on macOS or `F9` on Windows and Linux or click the green debug icon to start debugging in WebStorm.\n\nThe same way you can debug your application in IntelliJ IDEA Ultimate, PhpStorm, PyCharm Pro, and RubyMine. \n\n## Formatting Code Automatically\n\nPrettier is an opinionated code formatter with support for JavaScript, CSS and JSON. With Prettier you can format the code you write automatically to ensure a code style within your project. See the [Prettier's GitHub page](https://github.com/prettier/prettier) for more information, and look at this [page to see it in action](https://prettier.github.io/prettier/).\n\nTo format our code whenever we make a commit in git, we need to install the following dependencies:\n\n```sh\nnpm install --save husky lint-staged prettier\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add husky lint-staged prettier\n```\n\n* `husky` makes it easy to use githooks as if they are npm scripts.\n* `lint-staged` allows us to run scripts on staged files in git. See this [blog post about lint-staged to learn more about it](https://medium.com/@okonetchnikov/make-linting-great-again-f3890e1ad6b8).\n* `prettier` is the JavaScript formatter we will run before commits.\n\nNow we can make sure every file is formatted correctly by adding a few lines to the `package.json` in the project root.\n\nAdd the following line to `scripts` section:\n\n```diff\n \"scripts\": {\n+ \"precommit\": \"lint-staged\",\n \"start\": \"react-scripts start\",\n \"build\": \"react-scripts build\",\n```\n\nNext we add a 'lint-staged' field to the `package.json`, for example:\n\n```diff\n \"dependencies\": {\n // ...\n },\n+ \"lint-staged\": {\n+ \"src/**/*.{js,jsx,json,css}\": [\n+ \"prettier --single-quote --write\",\n+ \"git add\"\n+ ]\n+ },\n \"scripts\": {\n```\n\nNow, whenever you make a commit, Prettier will format the changed files automatically. You can also run `./node_modules/.bin/prettier --single-quote --write \"src/**/*.{js,jsx,json,css}\"` to format your entire project for the first time.\n\nNext you might want to integrate Prettier in your favorite editor. Read the section on [Editor Integration](https://prettier.io/docs/en/editors.html) on the Prettier GitHub page.\n\n## Changing the Page `<title>`\n\nYou can find the source HTML file in the `public` folder of the generated project. You may edit the `<title>` tag in it to change the title from “React App” to anything else.\n\nNote that normally you wouldn’t edit files in the `public` folder very often. For example, [adding a stylesheet](#adding-a-stylesheet) is done without touching the HTML.\n\nIf you need to dynamically update the page title based on the content, you can use the browser [`document.title`](https://developer.mozilla.org/en-US/docs/Web/API/Document/title) API. For more complex scenarios when you want to change the title from React components, you can use [React Helmet](https://github.com/nfl/react-helmet), a third party library.\n\nIf you use a custom server for your app in production and want to modify the title before it gets sent to the browser, you can follow advice in [this section](#generating-dynamic-meta-tags-on-the-server). Alternatively, you can pre-build each page as a static HTML file which then loads the JavaScript bundle, which is covered [here](#pre-rendering-into-static-html-files).\n\n## Installing a Dependency\n\nThe generated project includes React and ReactDOM as dependencies. It also includes a set of scripts used by Create React App as a development dependency. You may install other dependencies (for example, React Router) with `npm`:\n\n```sh\nnpm install --save react-router\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add react-router\n```\n\nThis works for any library, not just `react-router`.\n\n## Importing a Component\n\nThis project setup supports ES6 modules thanks to Babel.<br>\nWhile you can still use `require()` and `module.exports`, we encourage you to use [`import` and `export`](http://exploringjs.com/es6/ch_modules.html) instead.\n\nFor example:\n\n### `Button.js`\n\n```js\nimport React, { Component } from 'react';\n\nclass Button extends Component {\n render() {\n // ...\n }\n}\n\nexport default Button; // Don’t forget to use export default!\n```\n\n### `DangerButton.js`\n\n\n```js\nimport React, { Component } from 'react';\nimport Button from './Button'; // Import a component from another file\n\nclass DangerButton extends Component {\n render() {\n return <Button color=\"red\" />;\n }\n}\n\nexport default DangerButton;\n```\n\nBe aware of the [difference between default and named exports](http://stackoverflow.com/questions/36795819/react-native-es-6-when-should-i-use-curly-braces-for-import/36796281#36796281). It is a common source of mistakes.\n\nWe suggest that you stick to using default imports and exports when a module only exports a single thing (for example, a component). That’s what you get when you use `export default Button` and `import Button from './Button'`.\n\nNamed exports are useful for utility modules that export several functions. A module may have at most one default export and as many named exports as you like.\n\nLearn more about ES6 modules:\n\n* [When to use the curly braces?](http://stackoverflow.com/questions/36795819/react-native-es-6-when-should-i-use-curly-braces-for-import/36796281#36796281)\n* [Exploring ES6: Modules](http://exploringjs.com/es6/ch_modules.html)\n* [Understanding ES6: Modules](https://leanpub.com/understandinges6/read#leanpub-auto-encapsulating-code-with-modules)\n\n## Code Splitting\n\nInstead of downloading the entire app before users can use it, code splitting allows you to split your code into small chunks which you can then load on demand.\n\nThis project setup supports code splitting via [dynamic `import()`](http://2ality.com/2017/01/import-operator.html#loading-code-on-demand). Its [proposal](https://github.com/tc39/proposal-dynamic-import) is in stage 3. The `import()` function-like form takes the module name as an argument and returns a [`Promise`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) which always resolves to the namespace object of the module.\n\nHere is an example:\n\n### `moduleA.js`\n\n```js\nconst moduleA = 'Hello';\n\nexport { moduleA };\n```\n### `App.js`\n\n```js\nimport React, { Component } from 'react';\n\nclass App extends Component {\n handleClick = () => {\n import('./moduleA')\n .then(({ moduleA }) => {\n // Use moduleA\n })\n .catch(err => {\n // Handle failure\n });\n };\n\n render() {\n return (\n <div>\n <button onClick={this.handleClick}>Load</button>\n </div>\n );\n }\n}\n\nexport default App;\n```\n\nThis will make `moduleA.js` and all its unique dependencies as a separate chunk that only loads after the user clicks the 'Load' button.\n\nYou can also use it with `async` / `await` syntax if you prefer it.\n\n### With React Router\n\nIf you are using React Router check out [this tutorial](http://serverless-stack.com/chapters/code-splitting-in-create-react-app.html) on how to use code splitting with it. You can find the companion GitHub repository [here](https://github.com/AnomalyInnovations/serverless-stack-demo-client/tree/code-splitting-in-create-react-app).\n\nAlso check out the [Code Splitting](https://reactjs.org/docs/code-splitting.html) section in React documentation.\n\n## Adding a Stylesheet\n\nThis project setup uses [Webpack](https://webpack.js.org/) for handling all assets. Webpack offers a custom way of “extending” the concept of `import` beyond JavaScript. To express that a JavaScript file depends on a CSS file, you need to **import the CSS from the JavaScript file**:\n\n### `Button.css`\n\n```css\n.Button {\n padding: 20px;\n}\n```\n\n### `Button.js`\n\n```js\nimport React, { Component } from 'react';\nimport './Button.css'; // Tell Webpack that Button.js uses these styles\n\nclass Button extends Component {\n render() {\n // You can use them as regular CSS styles\n return <div className=\"Button\" />;\n }\n}\n```\n\n**This is not required for React** but many people find this feature convenient. You can read about the benefits of this approach [here](https://medium.com/seek-ui-engineering/block-element-modifying-your-javascript-components-d7f99fcab52b). However you should be aware that this makes your code less portable to other build tools and environments than Webpack.\n\nIn development, expressing dependencies this way allows your styles to be reloaded on the fly as you edit them. In production, all CSS files will be concatenated into a single minified `.css` file in the build output.\n\nIf you are concerned about using Webpack-specific semantics, you can put all your CSS right into `src/index.css`. It would still be imported from `src/index.js`, but you could always remove that import if you later migrate to a different build tool.\n\n## Post-Processing CSS\n\nThis project setup minifies your CSS and adds vendor prefixes to it automatically through [Autoprefixer](https://github.com/postcss/autoprefixer) so you don’t need to worry about it.\n\nFor example, this:\n\n```css\n.App {\n display: flex;\n flex-direction: row;\n align-items: center;\n}\n```\n\nbecomes this:\n\n```css\n.App {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-orient: horizontal;\n -webkit-box-direction: normal;\n -ms-flex-direction: row;\n flex-direction: row;\n -webkit-box-align: center;\n -ms-flex-align: center;\n align-items: center;\n}\n```\n\nIf you need to disable autoprefixing for some reason, [follow this section](https://github.com/postcss/autoprefixer#disabling).\n\n## Adding a CSS Preprocessor (Sass, Less etc.)\n\nGenerally, we recommend that you don’t reuse the same CSS classes across different components. For example, instead of using a `.Button` CSS class in `<AcceptButton>` and `<RejectButton>` components, we recommend creating a `<Button>` component with its own `.Button` styles, that both `<AcceptButton>` and `<RejectButton>` can render (but [not inherit](https://facebook.github.io/react/docs/composition-vs-inheritance.html)).\n\nFollowing this rule often makes CSS preprocessors less useful, as features like mixins and nesting are replaced by component composition. You can, however, integrate a CSS preprocessor if you find it valuable. In this walkthrough, we will be using Sass, but you can also use Less, or another alternative.\n\nFirst, let’s install the command-line interface for Sass:\n\n```sh\nnpm install --save node-sass-chokidar\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add node-sass-chokidar\n```\n\nThen in `package.json`, add the following lines to `scripts`:\n\n```diff\n \"scripts\": {\n+ \"build-css\": \"node-sass-chokidar src/ -o src/\",\n+ \"watch-css\": \"npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive\",\n \"start\": \"react-scripts start\",\n \"build\": \"react-scripts build\",\n \"test\": \"react-scripts test --env=jsdom\",\n```\n\n>Note: To use a different preprocessor, replace `build-css` and `watch-css` commands according to your preprocessor’s documentation.\n\nNow you can rename `src/App.css` to `src/App.scss` and run `npm run watch-css`. The watcher will find every Sass file in `src` subdirectories, and create a corresponding CSS file next to it, in our case overwriting `src/App.css`. Since `src/App.js` still imports `src/App.css`, the styles become a part of your application. You can now edit `src/App.scss`, and `src/App.css` will be regenerated.\n\nTo share variables between Sass files, you can use Sass imports. For example, `src/App.scss` and other component style files could include `@import \"./shared.scss\";` with variable definitions.\n\nTo enable importing files without using relative paths, you can add the `--include-path` option to the command in `package.json`.\n\n```\n\"build-css\": \"node-sass-chokidar --include-path ./src --include-path ./node_modules src/ -o src/\",\n\"watch-css\": \"npm run build-css && node-sass-chokidar --include-path ./src --include-path ./node_modules src/ -o src/ --watch --recursive\",\n```\n\nThis will allow you to do imports like\n\n```scss\n@import 'styles/_colors.scss'; // assuming a styles directory under src/\n@import 'nprogress/nprogress'; // importing a css file from the nprogress node module\n```\n\nAt this point you might want to remove all CSS files from the source control, and add `src/**/*.css` to your `.gitignore` file. It is generally a good practice to keep the build products outside of the source control.\n\nAs a final step, you may find it convenient to run `watch-css` automatically with `npm start`, and run `build-css` as a part of `npm run build`. You can use the `&&` operator to execute two scripts sequentially. However, there is no cross-platform way to run two scripts in parallel, so we will install a package for this:\n\n```sh\nnpm install --save npm-run-all\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add npm-run-all\n```\n\nThen we can change `start` and `build` scripts to include the CSS preprocessor commands:\n\n```diff\n \"scripts\": {\n \"build-css\": \"node-sass-chokidar src/ -o src/\",\n \"watch-css\": \"npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive\",\n- \"start\": \"react-scripts start\",\n- \"build\": \"react-scripts build\",\n+ \"start-js\": \"react-scripts start\",\n+ \"start\": \"npm-run-all -p watch-css start-js\",\n+ \"build-js\": \"react-scripts build\",\n+ \"build\": \"npm-run-all build-css build-js\",\n \"test\": \"react-scripts test --env=jsdom\",\n \"eject\": \"react-scripts eject\"\n }\n```\n\nNow running `npm start` and `npm run build` also builds Sass files.\n\n**Why `node-sass-chokidar`?**\n\n`node-sass` has been reported as having the following issues:\n\n- `node-sass --watch` has been reported to have *performance issues* in certain conditions when used in a virtual machine or with docker.\n\n- Infinite styles compiling [#1939](https://github.com/facebookincubator/create-react-app/issues/1939)\n\n- `node-sass` has been reported as having issues with detecting new files in a directory [#1891](https://github.com/sass/node-sass/issues/1891)\n\n `node-sass-chokidar` is used here as it addresses these issues.\n\n## Adding Images, Fonts, and Files\n\nWith Webpack, using static assets like images and fonts works similarly to CSS.\n\nYou can **`import` a file right in a JavaScript module**. This tells Webpack to include that file in the bundle. Unlike CSS imports, importing a file gives you a string value. This value is the final path you can reference in your code, e.g. as the `src` attribute of an image or the `href` of a link to a PDF.\n\nTo reduce the number of requests to the server, importing images that are less than 10,000 bytes returns a [data URI](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs) instead of a path. This applies to the following file extensions: bmp, gif, jpg, jpeg, and png. SVG files are excluded due to [#1153](https://github.com/facebookincubator/create-react-app/issues/1153).\n\nHere is an example:\n\n```js\nimport React from 'react';\nimport logo from './logo.png'; // Tell Webpack this JS file uses this image\n\nconsole.log(logo); // /logo.84287d09.png\n\nfunction Header() {\n // Import result is the URL of your image\n return <img src={logo} alt=\"Logo\" />;\n}\n\nexport default Header;\n```\n\nThis ensures that when the project is built, Webpack will correctly move the images into the build folder, and provide us with correct paths.\n\nThis works in CSS too:\n\n```css\n.Logo {\n background-image: url(./logo.png);\n}\n```\n\nWebpack finds all relative module references in CSS (they start with `./`) and replaces them with the final paths from the compiled bundle. If you make a typo or accidentally delete an important file, you will see a compilation error, just like when you import a non-existent JavaScript module. The final filenames in the compiled bundle are generated by Webpack from content hashes. If the file content changes in the future, Webpack will give it a different name in production so you don’t need to worry about long-term caching of assets.\n\nPlease be advised that this is also a custom feature of Webpack.\n\n**It is not required for React** but many people enjoy it (and React Native uses a similar mechanism for images).<br>\nAn alternative way of handling static assets is described in the next section.\n\n## Using the `public` Folder\n\n>Note: this feature is available with `react-scripts@0.5.0` and higher.\n\n### Changing the HTML\n\nThe `public` folder contains the HTML file so you can tweak it, for example, to [set the page title](#changing-the-page-title).\nThe `<script>` tag with the compiled code will be added to it automatically during the build process.\n\n### Adding Assets Outside of the Module System\n\nYou can also add other assets to the `public` folder.\n\nNote that we normally encourage you to `import` assets in JavaScript files instead.\nFor example, see the sections on [adding a stylesheet](#adding-a-stylesheet) and [adding images and fonts](#adding-images-fonts-and-files).\nThis mechanism provides a number of benefits:\n\n* Scripts and stylesheets get minified and bundled together to avoid extra network requests.\n* Missing files cause compilation errors instead of 404 errors for your users.\n* Result filenames include content hashes so you don’t need to worry about browsers caching their old versions.\n\nHowever there is an **escape hatch** that you can use to add an asset outside of the module system.\n\nIf you put a file into the `public` folder, it will **not** be processed by Webpack. Instead it will be copied into the build folder untouched. To reference assets in the `public` folder, you need to use a special variable called `PUBLIC_URL`.\n\nInside `index.html`, you can use it like this:\n\n```html\n<link rel=\"shortcut icon\" href=\"%PUBLIC_URL%/favicon.ico\">\n```\n\nOnly files inside the `public` folder will be accessible by `%PUBLIC_URL%` prefix. If you need to use a file from `src` or `node_modules`, you’ll have to copy it there to explicitly specify your intention to make this file a part of the build.\n\nWhen you run `npm run build`, Create React App will substitute `%PUBLIC_URL%` with a correct absolute path so your project works even if you use client-side routing or host it at a non-root URL.\n\nIn JavaScript code, you can use `process.env.PUBLIC_URL` for similar purposes:\n\n```js\nrender() {\n // Note: this is an escape hatch and should be used sparingly!\n // Normally we recommend using `import` for getting asset URLs\n // as described in “Adding Images and Fonts” above this section.\n return <img src={process.env.PUBLIC_URL + '/img/logo.png'} />;\n}\n```\n\nKeep in mind the downsides of this approach:\n\n* None of the files in `public` folder get post-processed or minified.\n* Missing files will not be called at compilation time, and will cause 404 errors for your users.\n* Result filenames won’t include content hashes so you’ll need to add query arguments or rename them every time they change.\n\n### When to Use the `public` Folder\n\nNormally we recommend importing [stylesheets](#adding-a-stylesheet), [images, and fonts](#adding-images-fonts-and-files) from JavaScript.\nThe `public` folder is useful as a workaround for a number of less common cases:\n\n* You need a file with a specific name in the build output, such as [`manifest.webmanifest`](https://developer.mozilla.org/en-US/docs/Web/Manifest).\n* You have thousands of images and need to dynamically reference their paths.\n* You want to include a small script like [`pace.js`](http://github.hubspot.com/pace/docs/welcome/) outside of the bundled code.\n* Some library may be incompatible with Webpack and you have no other option but to include it as a `<script>` tag.\n\nNote that if you add a `<script>` that declares global variables, you also need to read the next section on using them.\n\n## Using Global Variables\n\nWhen you include a script in the HTML file that defines global variables and try to use one of these variables in the code, the linter will complain because it cannot see the definition of the variable.\n\nYou can avoid this by reading the global variable explicitly from the `window` object, for example:\n\n```js\nconst $ = window.$;\n```\n\nThis makes it obvious you are using a global variable intentionally rather than because of a typo.\n\nAlternatively, you can force the linter to ignore any line by adding `// eslint-disable-line` after it.\n\n## Adding Bootstrap\n\nYou don’t have to use [React Bootstrap](https://react-bootstrap.github.io) together with React but it is a popular library for integrating Bootstrap with React apps. If you need it, you can integrate it with Create React App by following these steps:\n\nInstall React Bootstrap and Bootstrap from npm. React Bootstrap does not include Bootstrap CSS so this needs to be installed as well:\n\n```sh\nnpm install --save react-bootstrap bootstrap@3\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add react-bootstrap bootstrap@3\n```\n\nImport Bootstrap CSS and optionally Bootstrap theme CSS in the beginning of your ```src/index.js``` file:\n\n```js\nimport 'bootstrap/dist/css/bootstrap.css';\nimport 'bootstrap/dist/css/bootstrap-theme.css';\n// Put any other imports below so that CSS from your\n// components takes precedence over default styles.\n```\n\nImport required React Bootstrap components within ```src/App.js``` file or your custom component files:\n\n```js\nimport { Navbar, Jumbotron, Button } from 'react-bootstrap';\n```\n\nNow you are ready to use the imported React Bootstrap components within your component hierarchy defined in the render method. Here is an example [`App.js`](https://gist.githubusercontent.com/gaearon/85d8c067f6af1e56277c82d19fd4da7b/raw/6158dd991b67284e9fc8d70b9d973efe87659d72/App.js) redone using React Bootstrap.\n\n### Using a Custom Theme\n\nSometimes you might need to tweak the visual styles of Bootstrap (or equivalent package).<br>\nWe suggest the following approach:\n\n* Create a new package that depends on the package you wish to customize, e.g. Bootstrap.\n* Add the necessary build steps to tweak the theme, and publish your package on npm.\n* Install your own theme npm package as a dependency of your app.\n\nHere is an example of adding a [customized Bootstrap](https://medium.com/@tacomanator/customizing-create-react-app-aa9ffb88165) that follows these steps.\n\n## Adding Flow\n\nFlow is a static type checker that helps you write code with fewer bugs. Check out this [introduction to using static types in JavaScript](https://medium.com/@preethikasireddy/why-use-static-types-in-javascript-part-1-8382da1e0adb) if you are new to this concept.\n\nRecent versions of [Flow](http://flowtype.org/) work with Create React App projects out of the box.\n\nTo add Flow to a Create React App project, follow these steps:\n\n1. Run `npm install --save flow-bin` (or `yarn add flow-bin`).\n2. Add `\"flow\": \"flow\"` to the `scripts` section of your `package.json`.\n3. Run `npm run flow init` (or `yarn flow init`) to create a [`.flowconfig` file](https://flowtype.org/docs/advanced-configuration.html) in the root directory.\n4. Add `// @flow` to any files you want to type check (for example, to `src/App.js`).\n\nNow you can run `npm run flow` (or `yarn flow`) to check the files for type errors.\nYou can optionally use an IDE like [Nuclide](https://nuclide.io/docs/languages/flow/) for a better integrated experience.\nIn the future we plan to integrate it into Create React App even more closely.\n\nTo learn more about Flow, check out [its documentation](https://flowtype.org/).\n\n## Adding a Router\n\nCreate React App doesn't prescribe a specific routing solution, but [React Router](https://reacttraining.com/react-router/) is the most popular one.\n\nTo add it, run:\n\n```sh\nnpm install --save react-router-dom\n```\n\nAlternatively you may use `yarn`:\n\n```sh\nyarn add react-router-dom\n```\n\nTo try it, delete all the code in `src/App.js` and replace it with any of the examples on its website. The [Basic Example](https://reacttraining.com/react-router/web/example/basic) is a good place to get started.\n\nNote that [you may need to configure your production server to support client-side routing](#serving-apps-with-client-side-routing) before deploying your app.\n\n## Adding Custom Environment Variables\n\n>Note: this feature is available with `react-scripts@0.2.3` and higher.\n\nYour project can consume variables declared in your environment as if they were declared locally in your JS files. By\ndefault you will have `NODE_ENV` defined for you, and any other environment variables starting with\n`REACT_APP_`.\n\n**The environment variables are embedded during the build time**. Since Create React App produces a static HTML/CSS/JS bundle, it can’t possibly read them at runtime. To read them at runtime, you would need to load HTML into memory on the server and replace placeholders in runtime, just like [described here](#injecting-data-from-the-server-into-the-page). Alternatively you can rebuild the app on the server anytime you change them.\n\n>Note: You must create custom environment variables beginning with `REACT_APP_`. Any other variables except `NODE_ENV` will be ignored to avoid accidentally [exposing a private key on the machine that could have the same name](https://github.com/facebookincubator/create-react-app/issues/865#issuecomment-252199527). Changing any environment variables will require you to restart the development server if it is running.\n\nThese environment variables will be defined for you on `process.env`. For example, having an environment\nvariable named `REACT_APP_SECRET_CODE` will be exposed in your JS as `process.env.REACT_APP_SECRET_CODE`.\n\nThere is also a special built-in environment variable called `NODE_ENV`. You can read it from `process.env.NODE_ENV`. When you run `npm start`, it is always equal to `'development'`, when you run `npm test` it is always equal to `'test'`, and when you run `npm run build` to make a production bundle, it is always equal to `'production'`. **You cannot override `NODE_ENV` manually.** This prevents developers from accidentally deploying a slow development build to production.\n\nThese environment variables can be useful for displaying information conditionally based on where the project is\ndeployed or consuming sensitive data that lives outside of version control.\n\nFirst, you need to have environment variables defined. For example, let’s say you wanted to consume a secret defined\nin the environment inside a `<form>`:\n\n```jsx\nrender() {\n return (\n <div>\n <small>You are running this application in <b>{process.env.NODE_ENV}</b> mode.</small>\n <form>\n <input type=\"hidden\" defaultValue={process.env.REACT_APP_SECRET_CODE} />\n </form>\n </div>\n );\n}\n```\n\nDuring the build, `process.env.REACT_APP_SECRET_CODE` will be replaced with the current value of the `REACT_APP_SECRET_CODE` environment variable. Remember that the `NODE_ENV` variable will be set for you automatically.\n\nWhen you load the app in the browser and inspect the `<input>`, you will see its value set to `abcdef`, and the bold text will show the environment provided when using `npm start`:\n\n```html\n<div>\n <small>You are running this application in <b>development</b> mode.</small>\n <form>\n <input type=\"hidden\" value=\"abcdef\" />\n </form>\n</div>\n```\n\nThe above form is looking for a variable called `REACT_APP_SECRET_CODE` from the environment. In order to consume this\nvalue, we need to have it defined in the environment. This can be done using two ways: either in your shell or in\na `.env` file. Both of these ways are described in the next few sections.\n\nHaving access to the `NODE_ENV` is also useful for performing actions conditionally:\n\n```js\nif (process.env.NODE_ENV !== 'production') {\n analytics.disable();\n}\n```\n\nWhen you compile the app with `npm run build`, the minification step will strip out this condition, and the resulting bundle will be smaller.\n\n### Referencing Environment Variables in the HTML\n\n>Note: this feature is available with `react-scripts@0.9.0` and higher.\n\nYou can also access the environment variables starting with `REACT_APP_` in the `public/index.html`. For example:\n\n```html\n<title>%REACT_APP_WEBSITE_NAME%\n```\n\nNote that the caveats from the above section apply:\n\n* Apart from a few built-in variables (`NODE_ENV` and `PUBLIC_URL`), variable names must start with `REACT_APP_` to work.\n* The environment variables are injected at build time. If you need to inject them at runtime, [follow this approach instead](#generating-dynamic-meta-tags-on-the-server).\n\n### Adding Temporary Environment Variables In Your Shell\n\nDefining environment variables can vary between OSes. It’s also important to know that this manner is temporary for the\nlife of the shell session.\n\n#### Windows (cmd.exe)\n\n```cmd\nset \"REACT_APP_SECRET_CODE=abcdef\" && npm start\n```\n\n(Note: Quotes around the variable assignment are required to avoid a trailing whitespace.)\n\n#### Windows (Powershell)\n\n```Powershell\n($env:REACT_APP_SECRET_CODE = \"abcdef\") -and (npm start)\n```\n\n#### Linux, macOS (Bash)\n\n```bash\nREACT_APP_SECRET_CODE=abcdef npm start\n```\n\n### Adding Development Environment Variables In `.env`\n\n>Note: this feature is available with `react-scripts@0.5.0` and higher.\n\nTo define permanent environment variables, create a file called `.env` in the root of your project:\n\n```\nREACT_APP_SECRET_CODE=abcdef\n```\n>Note: You must create custom environment variables beginning with `REACT_APP_`. Any other variables except `NODE_ENV` will be ignored to avoid [accidentally exposing a private key on the machine that could have the same name](https://github.com/facebookincubator/create-react-app/issues/865#issuecomment-252199527). Changing any environment variables will require you to restart the development server if it is running.\n\n`.env` files **should be** checked into source control (with the exclusion of `.env*.local`).\n\n#### What other `.env` files can be used?\n\n>Note: this feature is **available with `react-scripts@1.0.0` and higher**.\n\n* `.env`: Default.\n* `.env.local`: Local overrides. **This file is loaded for all environments except test.**\n* `.env.development`, `.env.test`, `.env.production`: Environment-specific settings.\n* `.env.development.local`, `.env.test.local`, `.env.production.local`: Local overrides of environment-specific settings.\n\nFiles on the left have more priority than files on the right:\n\n* `npm start`: `.env.development.local`, `.env.development`, `.env.local`, `.env`\n* `npm run build`: `.env.production.local`, `.env.production`, `.env.local`, `.env`\n* `npm test`: `.env.test.local`, `.env.test`, `.env` (note `.env.local` is missing)\n\nThese variables will act as the defaults if the machine does not explicitly set them.
\nPlease refer to the [dotenv documentation](https://github.com/motdotla/dotenv) for more details.\n\n>Note: If you are defining environment variables for development, your CI and/or hosting platform will most likely need\nthese defined as well. Consult their documentation how to do this. For example, see the documentation for [Travis CI](https://docs.travis-ci.com/user/environment-variables/) or [Heroku](https://devcenter.heroku.com/articles/config-vars).\n\n#### Expanding Environment Variables In `.env`\n\n>Note: this feature is available with `react-scripts@1.1.0` and higher.\n\nExpand variables already on your machine for use in your `.env` file (using [dotenv-expand](https://github.com/motdotla/dotenv-expand)).\n\nFor example, to get the environment variable `npm_package_version`:\n\n```\nREACT_APP_VERSION=$npm_package_version\n# also works:\n# REACT_APP_VERSION=${npm_package_version}\n```\n\nOr expand variables local to the current `.env` file:\n\n```\nDOMAIN=www.example.com\nREACT_APP_FOO=$DOMAIN/foo\nREACT_APP_BAR=$DOMAIN/bar\n```\n\n## Can I Use Decorators?\n\nMany popular libraries use [decorators](https://medium.com/google-developers/exploring-es7-decorators-76ecb65fb841) in their documentation.
\nCreate React App doesn’t support decorator syntax at the moment because:\n\n* It is an experimental proposal and is subject to change.\n* The current specification version is not officially supported by Babel.\n* If the specification changes, we won’t be able to write a codemod because we don’t use them internally at Facebook.\n\nHowever in many cases you can rewrite decorator-based code without decorators just as fine.
\nPlease refer to these two threads for reference:\n\n* [#214](https://github.com/facebookincubator/create-react-app/issues/214)\n* [#411](https://github.com/facebookincubator/create-react-app/issues/411)\n\nCreate React App will add decorator support when the specification advances to a stable stage.\n\n## Fetching Data with AJAX Requests\n\nReact doesn't prescribe a specific approach to data fetching, but people commonly use either a library like [axios](https://github.com/axios/axios) or the [`fetch()` API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) provided by the browser. Conveniently, Create React App includes a polyfill for `fetch()` so you can use it without worrying about the browser support.\n\nThe global `fetch` function allows to easily makes AJAX requests. It takes in a URL as an input and returns a `Promise` that resolves to a `Response` object. You can find more information about `fetch` [here](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch).\n\nThis project also includes a [Promise polyfill](https://github.com/then/promise) which provides a full implementation of Promises/A+. A Promise represents the eventual result of an asynchronous operation, you can find more information about Promises [here](https://www.promisejs.org/) and [here](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise). Both axios and `fetch()` use Promises under the hood. You can also use the [`async / await`](https://davidwalsh.name/async-await) syntax to reduce the callback nesting.\n\nYou can learn more about making AJAX requests from React components in [the FAQ entry on the React website](https://reactjs.org/docs/faq-ajax.html).\n\n## Integrating with an API Backend\n\nThese tutorials will help you to integrate your app with an API backend running on another port,\nusing `fetch()` to access it.\n\n### Node\nCheck out [this tutorial](https://www.fullstackreact.com/articles/using-create-react-app-with-a-server/).\nYou can find the companion GitHub repository [here](https://github.com/fullstackreact/food-lookup-demo).\n\n### Ruby on Rails\n\nCheck out [this tutorial](https://www.fullstackreact.com/articles/how-to-get-create-react-app-to-work-with-your-rails-api/).\nYou can find the companion GitHub repository [here](https://github.com/fullstackreact/food-lookup-demo-rails).\n\n## Proxying API Requests in Development\n\n>Note: this feature is available with `react-scripts@0.2.3` and higher.\n\nPeople often serve the front-end React app from the same host and port as their backend implementation.
\nFor example, a production setup might look like this after the app is deployed:\n\n```\n/ - static server returns index.html with React app\n/todos - static server returns index.html with React app\n/api/todos - server handles any /api/* requests using the backend implementation\n```\n\nSuch setup is **not** required. However, if you **do** have a setup like this, it is convenient to write requests like `fetch('/api/todos')` without worrying about redirecting them to another host or port during development.\n\nTo tell the development server to proxy any unknown requests to your API server in development, add a `proxy` field to your `package.json`, for example:\n\n```js\n \"proxy\": \"http://localhost:4000\",\n```\n\nThis way, when you `fetch('/api/todos')` in development, the development server will recognize that it’s not a static asset, and will proxy your request to `http://localhost:4000/api/todos` as a fallback. The development server will **only** attempt to send requests without `text/html` in its `Accept` header to the proxy.\n\nConveniently, this avoids [CORS issues](http://stackoverflow.com/questions/21854516/understanding-ajax-cors-and-security-considerations) and error messages like this in development:\n\n```\nFetch API cannot load http://localhost:4000/api/todos. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:3000' is therefore not allowed access. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.\n```\n\nKeep in mind that `proxy` only has effect in development (with `npm start`), and it is up to you to ensure that URLs like `/api/todos` point to the right thing in production. You don’t have to use the `/api` prefix. Any unrecognized request without a `text/html` accept header will be redirected to the specified `proxy`.\n\nThe `proxy` option supports HTTP, HTTPS and WebSocket connections.
\nIf the `proxy` option is **not** flexible enough for you, alternatively you can:\n\n* [Configure the proxy yourself](#configuring-the-proxy-manually)\n* Enable CORS on your server ([here’s how to do it for Express](http://enable-cors.org/server_expressjs.html)).\n* Use [environment variables](#adding-custom-environment-variables) to inject the right server host and port into your app.\n\n### \"Invalid Host Header\" Errors After Configuring Proxy\n\nWhen you enable the `proxy` option, you opt into a more strict set of host checks. This is necessary because leaving the backend open to remote hosts makes your computer vulnerable to DNS rebinding attacks. The issue is explained in [this article](https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a) and [this issue](https://github.com/webpack/webpack-dev-server/issues/887).\n\nThis shouldn’t affect you when developing on `localhost`, but if you develop remotely like [described here](https://github.com/facebookincubator/create-react-app/issues/2271), you will see this error in the browser after enabling the `proxy` option:\n\n>Invalid Host header\n\nTo work around it, you can specify your public development host in a file called `.env.development` in the root of your project:\n\n```\nHOST=mypublicdevhost.com\n```\n\nIf you restart the development server now and load the app from the specified host, it should work.\n\nIf you are still having issues or if you’re using a more exotic environment like a cloud editor, you can bypass the host check completely by adding a line to `.env.development.local`. **Note that this is dangerous and exposes your machine to remote code execution from malicious websites:**\n\n```\n# NOTE: THIS IS DANGEROUS!\n# It exposes your machine to attacks from the websites you visit.\nDANGEROUSLY_DISABLE_HOST_CHECK=true\n```\n\nWe don’t recommend this approach.\n\n### Configuring the Proxy Manually\n\n>Note: this feature is available with `react-scripts@1.0.0` and higher.\n\nIf the `proxy` option is **not** flexible enough for you, you can specify an object in the following form (in `package.json`).
\nYou may also specify any configuration value [`http-proxy-middleware`](https://github.com/chimurai/http-proxy-middleware#options) or [`http-proxy`](https://github.com/nodejitsu/node-http-proxy#options) supports.\n```js\n{\n // ...\n \"proxy\": {\n \"/api\": {\n \"target\": \"\",\n \"ws\": true\n // ...\n }\n }\n // ...\n}\n```\n\nAll requests matching this path will be proxies, no exceptions. This includes requests for `text/html`, which the standard `proxy` option does not proxy.\n\nIf you need to specify multiple proxies, you may do so by specifying additional entries.\nMatches are regular expressions, so that you can use a regexp to match multiple paths.\n```js\n{\n // ...\n \"proxy\": {\n // Matches any request starting with /api\n \"/api\": {\n \"target\": \"\",\n \"ws\": true\n // ...\n },\n // Matches any request starting with /foo\n \"/foo\": {\n \"target\": \"\",\n \"ssl\": true,\n \"pathRewrite\": {\n \"^/foo\": \"/foo/beta\"\n }\n // ...\n },\n // Matches /bar/abc.html but not /bar/sub/def.html\n \"/bar/[^/]*[.]html\": {\n \"target\": \"\",\n // ...\n },\n // Matches /baz/abc.html and /baz/sub/def.html\n \"/baz/.*/.*[.]html\": {\n \"target\": \"\"\n // ...\n }\n }\n // ...\n}\n```\n\n### Configuring a WebSocket Proxy\n\nWhen setting up a WebSocket proxy, there are a some extra considerations to be aware of.\n\nIf you’re using a WebSocket engine like [Socket.io](https://socket.io/), you must have a Socket.io server running that you can use as the proxy target. Socket.io will not work with a standard WebSocket server. Specifically, don't expect Socket.io to work with [the websocket.org echo test](http://websocket.org/echo.html).\n\nThere’s some good documentation available for [setting up a Socket.io server](https://socket.io/docs/).\n\nStandard WebSockets **will** work with a standard WebSocket server as well as the websocket.org echo test. You can use libraries like [ws](https://github.com/websockets/ws) for the server, with [native WebSockets in the browser](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket).\n\nEither way, you can proxy WebSocket requests manually in `package.json`:\n\n```js\n{\n // ...\n \"proxy\": {\n \"/socket\": {\n // Your compatible WebSocket server\n \"target\": \"ws://\",\n // Tell http-proxy-middleware that this is a WebSocket proxy.\n // Also allows you to proxy WebSocket requests without an additional HTTP request\n // https://github.com/chimurai/http-proxy-middleware#external-websocket-upgrade\n \"ws\": true\n // ...\n }\n }\n // ...\n}\n```\n\n## Using HTTPS in Development\n\n>Note: this feature is available with `react-scripts@0.4.0` and higher.\n\nYou may require the dev server to serve pages over HTTPS. One particular case where this could be useful is when using [the \"proxy\" feature](#proxying-api-requests-in-development) to proxy requests to an API server when that API server is itself serving HTTPS.\n\nTo do this, set the `HTTPS` environment variable to `true`, then start the dev server as usual with `npm start`:\n\n#### Windows (cmd.exe)\n\n```cmd\nset HTTPS=true&&npm start\n```\n\n#### Windows (Powershell)\n\n```Powershell\n($env:HTTPS = $true) -and (npm start)\n```\n\n(Note: the lack of whitespace is intentional.)\n\n#### Linux, macOS (Bash)\n\n```bash\nHTTPS=true npm start\n```\n\nNote that the server will use a self-signed certificate, so your web browser will almost definitely display a warning upon accessing the page.\n\n## Generating Dynamic `` Tags on the Server\n\nSince Create React App doesn’t support server rendering, you might be wondering how to make `` tags dynamic and reflect the current URL. To solve this, we recommend to add placeholders into the HTML, like this:\n\n```html\n\n\n \n \n \n```\n\nThen, on the server, regardless of the backend you use, you can read `index.html` into memory and replace `__OG_TITLE__`, `__OG_DESCRIPTION__`, and any other placeholders with values depending on the current URL. Just make sure to sanitize and escape the interpolated values so that they are safe to embed into HTML!\n\nIf you use a Node server, you can even share the route matching logic between the client and the server. However duplicating it also works fine in simple cases.\n\n## Pre-Rendering into Static HTML Files\n\nIf you’re hosting your `build` with a static hosting provider you can use [react-snapshot](https://www.npmjs.com/package/react-snapshot) or [react-snap](https://github.com/stereobooster/react-snap) to generate HTML pages for each route, or relative link, in your application. These pages will then seamlessly become active, or “hydrated”, when the JavaScript bundle has loaded.\n\nThere are also opportunities to use this outside of static hosting, to take the pressure off the server when generating and caching routes.\n\nThe primary benefit of pre-rendering is that you get the core content of each page _with_ the HTML payload—regardless of whether or not your JavaScript bundle successfully downloads. It also increases the likelihood that each route of your application will be picked up by search engines.\n\nYou can read more about [zero-configuration pre-rendering (also called snapshotting) here](https://medium.com/superhighfives/an-almost-static-stack-6df0a2791319).\n\n## Injecting Data from the Server into the Page\n\nSimilarly to the previous section, you can leave some placeholders in the HTML that inject global variables, for example:\n\n```js\n\n\n \n \n```\n\nThen, on the server, you can replace `__SERVER_DATA__` with a JSON of real data right before sending the response. The client code can then read `window.SERVER_DATA` to use it. **Make sure to [sanitize the JSON before sending it to the client](https://medium.com/node-security/the-most-common-xss-vulnerability-in-react-js-applications-2bdffbcc1fa0) as it makes your app vulnerable to XSS attacks.**\n\n## Running Tests\n\n>Note: this feature is available with `react-scripts@0.3.0` and higher.
\n>[Read the migration guide to learn how to enable it in older projects!](https://github.com/facebookincubator/create-react-app/blob/master/CHANGELOG.md#migrating-from-023-to-030)\n\nCreate React App uses [Jest](https://facebook.github.io/jest/) as its test runner. To prepare for this integration, we did a [major revamp](https://facebook.github.io/jest/blog/2016/09/01/jest-15.html) of Jest so if you heard bad things about it years ago, give it another try.\n\nJest is a Node-based runner. This means that the tests always run in a Node environment and not in a real browser. This lets us enable fast iteration speed and prevent flakiness.\n\nWhile Jest provides browser globals such as `window` thanks to [jsdom](https://github.com/tmpvar/jsdom), they are only approximations of the real browser behavior. Jest is intended to be used for unit tests of your logic and your components rather than the DOM quirks.\n\nWe recommend that you use a separate tool for browser end-to-end tests if you need them. They are beyond the scope of Create React App.\n\n### Filename Conventions\n\nJest will look for test files with any of the following popular naming conventions:\n\n* Files with `.js` suffix in `__tests__` folders.\n* Files with `.test.js` suffix.\n* Files with `.spec.js` suffix.\n\nThe `.test.js` / `.spec.js` files (or the `__tests__` folders) can be located at any depth under the `src` top level folder.\n\nWe recommend to put the test files (or `__tests__` folders) next to the code they are testing so that relative imports appear shorter. For example, if `App.test.js` and `App.js` are in the same folder, the test just needs to `import App from './App'` instead of a long relative path. Colocation also helps find tests more quickly in larger projects.\n\n### Command Line Interface\n\nWhen you run `npm test`, Jest will launch in the watch mode. Every time you save a file, it will re-run the tests, just like `npm start` recompiles the code.\n\nThe watcher includes an interactive command-line interface with the ability to run all tests, or focus on a search pattern. It is designed this way so that you can keep it open and enjoy fast re-runs. You can learn the commands from the “Watch Usage” note that the watcher prints after every run:\n\n![Jest watch mode](http://facebook.github.io/jest/img/blog/15-watch.gif)\n\n### Version Control Integration\n\nBy default, when you run `npm test`, Jest will only run the tests related to files changed since the last commit. This is an optimization designed to make your tests run fast regardless of how many tests you have. However it assumes that you don’t often commit the code that doesn’t pass the tests.\n\nJest will always explicitly mention that it only ran tests related to the files changed since the last commit. You can also press `a` in the watch mode to force Jest to run all tests.\n\nJest will always run all tests on a [continuous integration](#continuous-integration) server or if the project is not inside a Git or Mercurial repository.\n\n### Writing Tests\n\nTo create tests, add `it()` (or `test()`) blocks with the name of the test and its code. You may optionally wrap them in `describe()` blocks for logical grouping but this is neither required nor recommended.\n\nJest provides a built-in `expect()` global function for making assertions. A basic test could look like this:\n\n```js\nimport sum from './sum';\n\nit('sums numbers', () => {\n expect(sum(1, 2)).toEqual(3);\n expect(sum(2, 2)).toEqual(4);\n});\n```\n\nAll `expect()` matchers supported by Jest are [extensively documented here](https://facebook.github.io/jest/docs/en/expect.html#content).
\nYou can also use [`jest.fn()` and `expect(fn).toBeCalled()`](https://facebook.github.io/jest/docs/en/expect.html#tohavebeencalled) to create “spies” or mock functions.\n\n### Testing Components\n\nThere is a broad spectrum of component testing techniques. They range from a “smoke test” verifying that a component renders without throwing, to shallow rendering and testing some of the output, to full rendering and testing component lifecycle and state changes.\n\nDifferent projects choose different testing tradeoffs based on how often components change, and how much logic they contain. If you haven’t decided on a testing strategy yet, we recommend that you start with creating simple smoke tests for y","readmeFilename":"README.md"}