; 36 | } 37 | } 38 | 39 | export default FormErrors; -------------------------------------------------------------------------------- /src/components/Hero.js: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | 3 | export default function Hero() { 4 | return ( 5 |

6 |

7 |

8 |

9 |

10 |

11 |

12 | ) 13 | } 14 | -------------------------------------------------------------------------------- /src/components/Home.js: -------------------------------------------------------------------------------- 1 | import React, { Fragment } from 'react'; 2 | import Hero from './Hero'; 3 | import HomeContent from './HomeContent'; 4 | 5 | export default function Home() { 6 | return ( 7 | 8 | 9 |

10 |

11 | New Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. 12 |

13 |

14 | 15 | 16 | ) 17 | } 18 | -------------------------------------------------------------------------------- /src/components/HomeContent.js: -------------------------------------------------------------------------------- 1 | import React from 'react' 2 | 3 | export default function HomeContent() { 4 | return ( 5 |

6 |

7 |

8 |

9 |

10 |

11 |

Energy conservation

12 |

Purus semper eget duis at tellus at urna condimentum mattis. Non blandit massa enim nec. Integer enim neque volutpat ac tincidunt vitae semper quis. Accumsan tortor posuere ac ut consequat semper viverra nam.

13 |

Learn more

14 |

15 |

16 |

17 |

18 |

19 |

20 |

21 |

22 |

Water conservation

23 |

Ut venenatis tellus in metus vulputate. Amet consectetur adipiscing elit pellentesque. Sed arcu non odio euismod lacinia at quis risus. Faucibus turpis in eu mi bibendum neque egestas cmonsu songue. Phasellus vestibulum lorem 24 | sed risus.

25 |

Learn more

26 |

27 |

28 |

29 |

30 |

31 |

32 |

33 |

34 |

Solar energy

35 |

Imperdiet dui accumsan sit amet nulla facilisi morbi. Fusce ut placerat orci nulla pellentesque dignissim enim. Libero id faucibus nisl tincidunt eget nullam. Commodo viverra maecenas accumsan lacus vel facilisis.

36 |

Learn more

37 |

38 |

39 |

40 |

41 |

42 |

43 | ) 44 | } 45 | -------------------------------------------------------------------------------- /src/components/Navbar.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import { Auth } from 'aws-amplify'; 3 | 4 | export default class Navbar extends Component { 5 | handleLogOut = async event => { 6 | event.preventDefault(); 7 | try { 8 | Auth.signOut(); 9 | this.props.auth.setAuthStatus(false); 10 | this.props.auth.setUser(null); 11 | }catch(error) { 12 | console.log(error.message); 13 | } 14 | } 15 | render() { 16 | return ( 17 | 65 | ) 66 | } 67 | } 68 | -------------------------------------------------------------------------------- /src/components/Product.js: -------------------------------------------------------------------------------- 1 | import React, { Component, Fragment } from 'react'; 2 | import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'; 3 | 4 | export default class ProductAdmin extends Component { 5 | 6 | state = { 7 | isEditMode: false, 8 | updatedproductname: this.props.name 9 | } 10 | 11 | handleProductEdit = event => { 12 | event.preventDefault(); 13 | this.setState({ isEditMode: true }); 14 | } 15 | 16 | handleEditSave = event => { 17 | event.preventDefault(); 18 | this.setState({ isEditMode: false }); 19 | this.props.handleUpdateProduct(this.props.id, this.state.updatedproductname); 20 | } 21 | 22 | onAddProductNameChange = event => this.setState({ "updatedproductname": event.target.value }); 23 | 24 | render() { 25 | return ( 26 |

27 | { 28 | this.props.isAdmin && 29 | 30 | 31 | 32 | 33 | 34 | 35 | } 36 | { 37 | this.state.isEditMode 38 | ?

39 |

Edit product name

40 | 47 |

id: { this.props.id }

48 | 52 |

53 | :

54 |

{ this.props.name }

55 |

id: { this.props.id }

56 |

57 | } 58 |

59 | ) 60 | } 61 | } 62 | -------------------------------------------------------------------------------- /src/components/ProductAdmin.js: -------------------------------------------------------------------------------- 1 | import React, { Component, Fragment } from 'react'; 2 | import Product from './Product'; 3 | import axios from "axios"; 4 | const config = require('../config.json'); 5 | 6 | export default class ProductAdmin extends Component { 7 | 8 | state = { 9 | newproduct: { 10 | "productname": "", 11 | "id": "" 12 | }, 13 | products: [] 14 | } 15 | 16 | handleAddProduct = async (id, event) => { 17 | event.preventDefault(); 18 | // add call to AWS API Gateway add product endpoint here 19 | try { 20 | const params = { 21 | "id": id, 22 | "productname": this.state.newproduct.productname 23 | }; 24 | await axios.post(`${config.api.invokeUrl}/products/${id}`, params); 25 | this.setState({ products: [...this.state.products, this.state.newproduct] }); 26 | this.setState({ newproduct: { "productname": "", "id": "" }}); 27 | }catch (err) { 28 | console.log(`An error has occurred: ${err}`); 29 | } 30 | } 31 | 32 | handleUpdateProduct = async (id, name) => { 33 | // add call to AWS API Gateway update product endpoint here 34 | try { 35 | const params = { 36 | "id": id, 37 | "productname": name 38 | }; 39 | await axios.patch(`${config.api.invokeUrl}/products/${id}`, params); 40 | const productToUpdate = [...this.state.products].find(product => product.id === id); 41 | const updatedProducts = [...this.state.products].filter(product => product.id !== id); 42 | productToUpdate.productname = name; 43 | updatedProducts.push(productToUpdate); 44 | this.setState({products: updatedProducts}); 45 | }catch (err) { 46 | console.log(`Error updating product: ${err}`); 47 | } 48 | } 49 | 50 | handleDeleteProduct = async (id, event) => { 51 | event.preventDefault(); 52 | // add call to AWS API Gateway delete product endpoint here 53 | try { 54 | await axios.delete(`${config.api.invokeUrl}/products/${id}`); 55 | const updatedProducts = [...this.state.products].filter(product => product.id !== id); 56 | this.setState({products: updatedProducts}); 57 | }catch (err) { 58 | console.log(`Unable to delete product: ${err}`); 59 | } 60 | } 61 | 62 | fetchProducts = async () => { 63 | // add call to AWS API Gateway to fetch products here 64 | // then set them in state 65 | try { 66 | const res = await axios.get(`${config.api.invokeUrl}/products`); 67 | const products = res.data; 68 | this.setState({ products: products }); 69 | } catch (err) { 70 | console.log(`An error has occurred: ${err}`); 71 | } 72 | } 73 | 74 | onAddProductNameChange = event => this.setState({ newproduct: { ...this.state.newproduct, "productname": event.target.value } }); 75 | onAddProductIdChange = event => this.setState({ newproduct: { ...this.state.newproduct, "id": event.target.value } }); 76 | 77 | componentDidMount = () => { 78 | this.fetchProducts(); 79 | } 80 | 81 | render() { 82 | return ( 83 | 84 |

85 |

86 |

Product Admin

87 |

Add and remove products using the form below:

88 |
89 |

90 |

91 | 118 |

119 |

120 |

121 |

122 | { 123 | this.state.products.map((product, index) => 124 | ) 132 | } 133 |

134 |

135 |

136 |

137 |

138 |

139 | 140 | ) 141 | } 142 | } 143 | -------------------------------------------------------------------------------- /src/components/Products.js: -------------------------------------------------------------------------------- 1 | import React, { Component, Fragment } from 'react'; 2 | import Product from './Product'; 3 | import axios from "axios"; 4 | const config = require('../config.json'); 5 | 6 | export default class Products extends Component { 7 | 8 | state = { 9 | newproduct: null, 10 | products: [] 11 | } 12 | 13 | fetchProducts = async () => { 14 | // add call to AWS API Gateway to fetch products here 15 | // then set them in state 16 | try { 17 | const res = await axios.get(`${config.api.invokeUrl}/products`); 18 | const products = res.data; 19 | this.setState({ products: products }); 20 | } catch (err) { 21 | console.log(`An error has occurred: ${err}`); 22 | } 23 | } 24 | 25 | componentDidMount = () => { 26 | this.fetchProducts(); 27 | } 28 | 29 | render() { 30 | return ( 31 | 32 |

33 |

34 |

Energy Products

35 |

Invest in a clean future with our efficient and cost-effective green energy products:

36 |
37 |

38 |

39 |

40 |

41 | { 42 | this.state.products && this.state.products.length > 0 43 | ? this.state.products.map(product => ) 44 | :

No products available

45 | } 46 |

47 |

48 |

49 |

50 |

51 |

52 | 53 | ) 54 | } 55 | } 56 | -------------------------------------------------------------------------------- /src/components/auth/ChangePassword.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import FormErrors from "../FormErrors"; 3 | import Validate from "../utility/FormValidation"; 4 | import { Auth } from 'aws-amplify'; 5 | 6 | class ChangePassword extends Component { 7 | state = { 8 | oldpassword: "", 9 | newpassword: "", 10 | confirmpassword: "", 11 | errors: { 12 | cognito: null, 13 | blankfield: false, 14 | passwordmatch: false 15 | } 16 | } 17 | 18 | clearErrorState = () => { 19 | this.setState({ 20 | errors: { 21 | cognito: null, 22 | blankfield: false, 23 | passwordmatch: false 24 | } 25 | }); 26 | } 27 | 28 | handleSubmit = async event => { 29 | event.preventDefault(); 30 | 31 | // Form validation 32 | this.clearErrorState(); 33 | const error = Validate(event, this.state); 34 | if (error) { 35 | this.setState({ 36 | errors: { ...this.state.errors, ...error } 37 | }); 38 | } 39 | 40 | // AWS Cognito integration here 41 | try { 42 | const user = await Auth.currentAuthenticatedUser(); 43 | console.log(user); 44 | await Auth.changePassword( 45 | user, 46 | this.state.oldpassword, 47 | this.state.newpassword 48 | ); 49 | this.props.history.push("/changepasswordconfirmation"); 50 | } catch (error) { 51 | let err = null; 52 | !error.message ? err = { "message": error } : err = error; 53 | this.setState({ 54 | errors: { ...this.state.errors, cognito: err } 55 | }); 56 | console.log(err); 57 | } 58 | } 59 | 60 | onInputChange = event => { 61 | this.setState({ 62 | [event.target.id]: event.target.value 63 | }); 64 | document.getElementById(event.target.id).classList.remove("is-danger"); 65 | } 66 | 67 | render() { 68 | return ( 69 |

70 |

71 |

Change Password

72 | 73 | 74 |

75 |

76 |

77 | 85 | 86 | 87 | 88 |

89 |

90 |

91 |

92 | 100 | 101 | 102 | 103 |

104 |

105 |

106 |

107 | 115 | 116 | 117 | 118 |

119 |

120 |

121 |

122 | Forgot password? 123 |

124 |

125 |

126 |

127 | 130 |

131 |

132 |

133 |

134 |

135 | ); 136 | } 137 | } 138 | 139 | export default ChangePassword; -------------------------------------------------------------------------------- /src/components/auth/ChangePasswordConfirm.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from "react"; 2 | 3 | class ChangePasswordConfirmation extends Component { 4 | render() { 5 | return ( 6 |

7 |

8 |

Change Password

9 |

Your password has been successfully updated!

10 |

11 |

12 | ); 13 | } 14 | } 15 | 16 | export default ChangePasswordConfirmation; -------------------------------------------------------------------------------- /src/components/auth/ForgotPassword.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import FormErrors from "../FormErrors"; 3 | import Validate from "../utility/FormValidation"; 4 | import { Auth } from 'aws-amplify'; 5 | 6 | class ForgotPassword extends Component { 7 | state = { 8 | email: "", 9 | errors: { 10 | cognito: null, 11 | blankfield: false 12 | } 13 | } 14 | 15 | clearErrorState = () => { 16 | this.setState({ 17 | errors: { 18 | cognito: null, 19 | blankfield: false 20 | } 21 | }); 22 | } 23 | 24 | forgotPasswordHandler = async event => { 25 | event.preventDefault(); 26 | 27 | // Form validation 28 | this.clearErrorState(); 29 | const error = Validate(event, this.state); 30 | if (error) { 31 | this.setState({ 32 | errors: { ...this.state.errors, ...error } 33 | }); 34 | } 35 | 36 | // AWS Cognito integration here 37 | try { 38 | await Auth.forgotPassword(this.state.email); 39 | this.props.history.push('/forgotpasswordverification'); 40 | }catch(error) { 41 | console.log(error); 42 | } 43 | } 44 | 45 | onInputChange = event => { 46 | this.setState({ 47 | [event.target.id]: event.target.value 48 | }); 49 | document.getElementById(event.target.id).classList.remove("is-danger"); 50 | } 51 | 52 | render() { 53 | return ( 54 |

55 |

56 |

Forgot your password?

57 |

58 | Please enter the email address associated with your account and we'll 59 | email you a password reset link. 60 |

61 | 62 | 63 | 93 |

94 |

95 | ); 96 | } 97 | } 98 | 99 | export default ForgotPassword; -------------------------------------------------------------------------------- /src/components/auth/ForgotPasswordVerification.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import FormErrors from "../FormErrors"; 3 | import Validate from "../utility/FormValidation"; 4 | import { Auth } from 'aws-amplify'; 5 | 6 | class ForgotPasswordVerification extends Component { 7 | state = { 8 | verificationcode: "", 9 | email: "", 10 | newpassword: "", 11 | errors: { 12 | cognito: null, 13 | blankfield: false 14 | } 15 | }; 16 | 17 | clearErrorState = () => { 18 | this.setState({ 19 | errors: { 20 | cognito: null, 21 | blankfield: false 22 | } 23 | }); 24 | }; 25 | 26 | passwordVerificationHandler = async event => { 27 | event.preventDefault(); 28 | 29 | // Form validation 30 | this.clearErrorState(); 31 | const error = Validate(event, this.state); 32 | if (error) { 33 | this.setState({ 34 | errors: { ...this.state.errors, ...error } 35 | }); 36 | } 37 | 38 | // AWS Cognito integration here 39 | try { 40 | await Auth.forgotPasswordSubmit( 41 | this.state.email, 42 | this.state.verificationcode, 43 | this.state.newpassword 44 | ); 45 | this.props.history.push("/changepasswordconfirmation"); 46 | }catch(error) { 47 | console.log(error); 48 | } 49 | }; 50 | 51 | onInputChange = event => { 52 | this.setState({ 53 | [event.target.id]: event.target.value 54 | }); 55 | document.getElementById(event.target.id).classList.remove("is-danger"); 56 | }; 57 | 58 | render() { 59 | return ( 60 |

61 |

62 |

Set new password

63 |

64 | Please enter the verification code sent to your email address below, 65 | your email address and a new password. 66 |

67 | 68 | 69 | 122 |

123 |

124 | ); 125 | } 126 | } 127 | 128 | export default ForgotPasswordVerification; -------------------------------------------------------------------------------- /src/components/auth/LogIn.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import FormErrors from "../FormErrors"; 3 | import Validate from "../utility/FormValidation"; 4 | import { Auth } from "aws-amplify"; 5 | 6 | class LogIn extends Component { 7 | state = { 8 | username: "", 9 | password: "", 10 | errors: { 11 | cognito: null, 12 | blankfield: false 13 | } 14 | }; 15 | 16 | clearErrorState = () => { 17 | this.setState({ 18 | errors: { 19 | cognito: null, 20 | blankfield: false 21 | } 22 | }); 23 | }; 24 | 25 | handleSubmit = async event => { 26 | event.preventDefault(); 27 | 28 | // Form validation 29 | this.clearErrorState(); 30 | const error = Validate(event, this.state); 31 | if (error) { 32 | this.setState({ 33 | errors: { ...this.state.errors, ...error } 34 | }); 35 | } 36 | 37 | // AWS Cognito integration here 38 | try { 39 | const user = await Auth.signIn(this.state.username, this.state.password); 40 | console.log(user); 41 | this.props.auth.setAuthStatus(true); 42 | this.props.auth.setUser(user); 43 | this.props.history.push("/"); 44 | }catch(error) { 45 | let err = null; 46 | !error.message ? err = { "message": error } : err = error; 47 | this.setState({ 48 | errors: { 49 | ...this.state.errors, 50 | cognito: err 51 | } 52 | }); 53 | } 54 | }; 55 | 56 | onInputChange = event => { 57 | this.setState({ 58 | [event.target.id]: event.target.value 59 | }); 60 | document.getElementById(event.target.id).classList.remove("is-danger"); 61 | }; 62 | 63 | render() { 64 | return ( 65 |

66 |

67 |

Log in

68 | 69 | 70 | 112 |

113 |

114 | ); 115 | } 116 | } 117 | 118 | export default LogIn; -------------------------------------------------------------------------------- /src/components/auth/Register.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import FormErrors from "../FormErrors"; 3 | import Validate from "../utility/FormValidation"; 4 | import { Auth } from "aws-amplify"; 5 | 6 | class Register extends Component { 7 | state = { 8 | username: "", 9 | email: "", 10 | password: "", 11 | confirmpassword: "", 12 | errors: { 13 | cognito: null, 14 | blankfield: false, 15 | passwordmatch: false 16 | } 17 | } 18 | 19 | clearErrorState = () => { 20 | this.setState({ 21 | errors: { 22 | cognito: null, 23 | blankfield: false, 24 | passwordmatch: false 25 | } 26 | }); 27 | } 28 | 29 | handleSubmit = async event => { 30 | event.preventDefault(); 31 | 32 | // Form validation 33 | this.clearErrorState(); 34 | const error = Validate(event, this.state); 35 | if (error) { 36 | this.setState({ 37 | errors: { ...this.state.errors, ...error } 38 | }); 39 | } 40 | 41 | // AWS Cognito integration here 42 | const { username, email, password } = this.state; 43 | try { 44 | const signUpResponse = await Auth.signUp({ 45 | username, 46 | password, 47 | attributes: { 48 | email: email 49 | } 50 | }); 51 | this.props.history.push("/welcome"); 52 | console.log(signUpResponse); 53 | } catch (error) { 54 | let err = null; 55 | !error.message ? err = { "message": error } : err = error; 56 | this.setState({ 57 | errors: { 58 | ...this.state.errors, 59 | cognito: err 60 | } 61 | }); 62 | } 63 | } 64 | 65 | onInputChange = event => { 66 | this.setState({ 67 | [event.target.id]: event.target.value 68 | }); 69 | document.getElementById(event.target.id).classList.remove("is-danger"); 70 | } 71 | 72 | render() { 73 | return ( 74 |

75 |

76 |

Register

77 | 78 | 79 |

80 |

81 |

82 | 91 |

92 |

93 |

94 |

95 | 104 | 105 | 106 | 107 |

108 |

109 |

110 |

111 | 119 | 120 | 121 | 122 |

123 |

124 |

125 |

126 | 134 | 135 | 136 | 137 |

138 |

139 |

140 |

141 | Forgot password? 142 |

143 |

144 |

145 |

146 | 149 |

150 |

151 |

152 |

153 |

154 | ); 155 | } 156 | } 157 | 158 | export default Register; -------------------------------------------------------------------------------- /src/components/auth/Welcome.js: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | 3 | export default function Welcome() { 4 | return ( 5 |

6 |

7 |

Welcome!

8 |

You have successfully registered a new account.

9 |

We've sent you a email. Please click on the confirmation link to verify your account.

10 |

11 |

12 | ) 13 | } 14 | -------------------------------------------------------------------------------- /src/components/utility/FormValidation.js: -------------------------------------------------------------------------------- 1 | function validateForm(event, state) { 2 | // clear all error messages 3 | const inputs = document.getElementsByClassName("is-danger"); 4 | for (let i = 0; i < inputs.length; i++) { 5 | if (!inputs[i].classList.contains("error")) { 6 | inputs[i].classList.remove("is-danger"); 7 | } 8 | } 9 | 10 | if (state.hasOwnProperty("username") && state.username === "") { 11 | document.getElementById("username").classList.add("is-danger"); 12 | return { blankfield: true }; 13 | } 14 | if (state.hasOwnProperty("firstname") && state.firstname === "") { 15 | document.getElementById("firstname").classList.add("is-danger"); 16 | return { blankfield: true }; 17 | } 18 | if (state.hasOwnProperty("lastname") && state.lastname === "") { 19 | document.getElementById("lastname").classList.add("is-danger"); 20 | return { blankfield: true }; 21 | } 22 | if (state.hasOwnProperty("email") && state.email === "") { 23 | document.getElementById("email").classList.add("is-danger"); 24 | return { blankfield: true }; 25 | } 26 | if ( 27 | state.hasOwnProperty("verificationcode") && 28 | state.verificationcode === "" 29 | ) { 30 | document.getElementById("verificationcode").classList.add("is-danger"); 31 | return { blankfield: true }; 32 | } 33 | if (state.hasOwnProperty("password") && state.password === "") { 34 | document.getElementById("password").classList.add("is-danger"); 35 | return { blankfield: true }; 36 | } 37 | if (state.hasOwnProperty("oldpassword") && state.oldpassword === "") { 38 | document.getElementById("oldpassword").classList.add("is-danger"); 39 | return { blankfield: true }; 40 | } 41 | if (state.hasOwnProperty("newpassword") && state.newpassword === "") { 42 | document.getElementById("newpassword").classList.add("is-danger"); 43 | return { blankfield: true }; 44 | } 45 | if (state.hasOwnProperty("confirmpassword") && state.confirmpassword === "") { 46 | document.getElementById("confirmpassword").classList.add("is-danger"); 47 | return { blankfield: true }; 48 | } 49 | if ( 50 | state.hasOwnProperty("password") && 51 | state.hasOwnProperty("confirmpassword") && 52 | state.password !== state.confirmpassword 53 | ) { 54 | document.getElementById("password").classList.add("is-danger"); 55 | document.getElementById("confirmpassword").classList.add("is-danger"); 56 | return { passwordmatch: true }; 57 | } 58 | if ( 59 | state.hasOwnProperty("newpassword") && 60 | state.hasOwnProperty("confirmpassword") && 61 | state.newpassword !== state.confirmpassword 62 | ) { 63 | document.getElementById("newpassword").classList.add("is-danger"); 64 | document.getElementById("confirmpassword").classList.add("is-danger"); 65 | return { passwordmatch: true }; 66 | } 67 | return; 68 | } 69 | 70 | export default validateForm; -------------------------------------------------------------------------------- /src/config.json: -------------------------------------------------------------------------------- 1 | { 2 | "api": { 3 | "invokeUrl": "https://5bltcq602h.execute-api.us-west-2.amazonaws.com/prod" 4 | }, 5 | "cognito": { 6 | "REGION": "us-west-2", 7 | "USER_POOL_ID": "us-west-2_flCJaoDig", 8 | "APP_CLIENT_ID": "159ufjrihgehb67sn373aotli7" 9 | } 10 | } -------------------------------------------------------------------------------- /src/index.css: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jspruance/aws-cognito-tutorial-complete/2eedd15239c299dfc0cea92017f261869b188878/src/index.css -------------------------------------------------------------------------------- /src/index.js: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | import ReactDOM from 'react-dom'; 3 | import 'bulma/css/bulma.min.css'; 4 | import './index.css'; 5 | import App from './App'; 6 | import Amplify from "aws-amplify"; 7 | import config from "./config"; 8 | import * as serviceWorker from './serviceWorker'; 9 | 10 | Amplify.configure({ 11 | Auth: { 12 | mandatorySignIn: true, 13 | region: config.cognito.REGION, 14 | userPoolId: config.cognito.USER_POOL_ID, 15 | userPoolWebClientId: config.cognito.APP_CLIENT_ID 16 | } 17 | }); 18 | 19 | ReactDOM.render(, document.getElementById('root')); 20 | 21 | // If you want your app to work offline and load faster, you can change 22 | // unregister() to register() below. Note this comes with some pitfalls. 23 | // Learn more about service workers: http://bit.ly/CRA-PWA 24 | serviceWorker.unregister(); 25 | -------------------------------------------------------------------------------- /src/logo.svg: -------------------------------------------------------------------------------- 1 | 8 | -------------------------------------------------------------------------------- /src/serviceWorker.js: -------------------------------------------------------------------------------- 1 | // This optional code is used to register a service worker. 2 | // register() is not called by default. 3 | 4 | // This lets the app load faster on subsequent visits in production, and gives 5 | // it offline capabilities. However, it also means that developers (and users) 6 | // will only see deployed updates on subsequent visits to a page, after all the 7 | // existing tabs open on the page have been closed, since previously cached 8 | // resources are updated in the background. 9 | 10 | // To learn more about the benefits of this model and instructions on how to 11 | // opt-in, read http://bit.ly/CRA-PWA 12 | 13 | const isLocalhost = Boolean( 14 | window.location.hostname === 'localhost' || 15 | // [::1] is the IPv6 localhost address. 16 | window.location.hostname === '[::1]' || 17 | // 127.0.0.1/8 is considered localhost for IPv4. 18 | window.location.hostname.match( 19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ 20 | ) 21 | ); 22 | 23 | export function register(config) { 24 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { 25 | // The URL constructor is available in all browsers that support SW. 26 | const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href); 27 | if (publicUrl.origin !== window.location.origin) { 28 | // Our service worker won't work if PUBLIC_URL is on a different origin 29 | // from what our page is served on. This might happen if a CDN is used to 30 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374 31 | return; 32 | } 33 | 34 | window.addEventListener('load', () => { 35 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; 36 | 37 | if (isLocalhost) { 38 | // This is running on localhost. Let's check if a service worker still exists or not. 39 | checkValidServiceWorker(swUrl, config); 40 | 41 | // Add some additional logging to localhost, pointing developers to the 42 | // service worker/PWA documentation. 43 | navigator.serviceWorker.ready.then(() => { 44 | console.log( 45 | 'This web app is being served cache-first by a service ' + 46 | 'worker. To learn more, visit http://bit.ly/CRA-PWA' 47 | ); 48 | }); 49 | } else { 50 | // Is not localhost. Just register service worker 51 | registerValidSW(swUrl, config); 52 | } 53 | }); 54 | } 55 | } 56 | 57 | function registerValidSW(swUrl, config) { 58 | navigator.serviceWorker 59 | .register(swUrl) 60 | .then(registration => { 61 | registration.onupdatefound = () => { 62 | const installingWorker = registration.installing; 63 | if (installingWorker == null) { 64 | return; 65 | } 66 | installingWorker.onstatechange = () => { 67 | if (installingWorker.state === 'installed') { 68 | if (navigator.serviceWorker.controller) { 69 | // At this point, the updated precached content has been fetched, 70 | // but the previous service worker will still serve the older 71 | // content until all client tabs are closed. 72 | console.log( 73 | 'New content is available and will be used when all ' + 74 | 'tabs for this page are closed. See http://bit.ly/CRA-PWA.' 75 | ); 76 | 77 | // Execute callback 78 | if (config && config.onUpdate) { 79 | config.onUpdate(registration); 80 | } 81 | } else { 82 | // At this point, everything has been precached. 83 | // It's the perfect time to display a 84 | // "Content is cached for offline use." message. 85 | console.log('Content is cached for offline use.'); 86 | 87 | // Execute callback 88 | if (config && config.onSuccess) { 89 | config.onSuccess(registration); 90 | } 91 | } 92 | } 93 | }; 94 | }; 95 | }) 96 | .catch(error => { 97 | console.error('Error during service worker registration:', error); 98 | }); 99 | } 100 | 101 | function checkValidServiceWorker(swUrl, config) { 102 | // Check if the service worker can be found. If it can't reload the page. 103 | fetch(swUrl) 104 | .then(response => { 105 | // Ensure service worker exists, and that we really are getting a JS file. 106 | const contentType = response.headers.get('content-type'); 107 | if ( 108 | response.status === 404 || 109 | (contentType != null && contentType.indexOf('javascript') === -1) 110 | ) { 111 | // No service worker found. Probably a different app. Reload the page. 112 | navigator.serviceWorker.ready.then(registration => { 113 | registration.unregister().then(() => { 114 | window.location.reload(); 115 | }); 116 | }); 117 | } else { 118 | // Service worker found. Proceed as normal. 119 | registerValidSW(swUrl, config); 120 | } 121 | }) 122 | .catch(() => { 123 | console.log( 124 | 'No internet connection found. App is running in offline mode.' 125 | ); 126 | }); 127 | } 128 | 129 | export function unregister() { 130 | if ('serviceWorker' in navigator) { 131 | navigator.serviceWorker.ready.then(registration => { 132 | registration.unregister(); 133 | }); 134 | } 135 | } 136 | --------------------------------------------------------------------------------