├── .gitignore
├── README.md
├── backend
    ├── .eslintrc.json
    ├── handler.js
    ├── package-lock.json
    ├── package.json
    └── serverless.yml
└── frontend
    ├── package-lock.json
    ├── package.json
    ├── public
        ├── favicon.ico
        ├── index.html
        └── manifest.json
    └── src
        ├── App.css
        ├── App.js
        ├── App.test.js
        ├── chatWindow.js
        ├── config.js
        ├── index.css
        ├── index.js
        ├── logo.svg
        └── serviceWorker.js


/.gitignore:
--------------------------------------------------------------------------------
1 | # package directories
2 | node_modules
3 | jspm_packages
4 | 
5 | # Serverless directories
6 | .serverless


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ## This repo is deprecated, please check out new example repo https://github.com/yai333/QuestionAnswerChatbot
 2 | 
 3 | Realtime chat web app using React, AWS API Gateway Websockets, Dynamodb and custom Cognito authorizer.
 4 | https://medium.com/neami-apps/how-to-build-a-react-chat-app-with-aws-api-gateway-websockets-and-cognito-custom-authorizer-6f84f2da47ec
 5 | 
 6 | ## Project Structure
 7 | 
 8 | ```bash
 9 | ── /backend/            # Api Gateway Websockets and Lambda functions
10 | ── /frontend/           # Frontend React web app
11 | ```
12 | 
13 | ## Stack
14 | 
15 | - React 16.8+
16 | - Serverless 1.38+
17 | - Node.js 8.10
18 | 
19 | ## Create AWS Cognito User Pool
20 | 
21 | https://docs.aws.amazon.com/cognito/latest/developerguide/tutorial-create-user-pool.html
22 | 
23 | Once User Pool created, Replace all <strong>APP_CLIENT_ID</strong> and <strong>USER_POOL_ID</strong> to your created IDs
24 | 
25 | ## Deploy Backend
26 | 
27 | ```
28 | cd backend
29 | sls deploy
30 | cd ..
31 | ```
32 | 
33 | ## Run React App
34 | 
35 | ```
36 | cd frontend
37 | npm install
38 | npm start
39 | ```
40 | 


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/backend/.eslintrc.json:
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 1 | {
 2 |   "env": {
 3 |     "browser": true,
 4 |     "commonjs": true,
 5 |     "es6": true,
 6 |     "node": true
 7 |   },
 8 |   "extends": "eslint:recommended",
 9 |   "globals": {
10 |     "Atomics": "readonly",
11 |     "SharedArrayBuffer": "readonly"
12 |   },
13 |   "parserOptions": {
14 |     "ecmaVersion": 2018
15 |   },
16 |   "rules": {}
17 | }
18 | 


--------------------------------------------------------------------------------
/backend/handler.js:
--------------------------------------------------------------------------------
  1 | "use strict";
  2 | 
  3 | const AWS = require("aws-sdk");
  4 | const Bluebird = require("bluebird");
  5 | AWS.config.update({ region: process.env.AWS_REGION });
  6 | const DDB = new AWS.DynamoDB({ apiVersion: "2012-10-08" });
  7 | AWS.config.setPromisesDependency(Bluebird);
  8 | require("aws-sdk/clients/apigatewaymanagementapi");
  9 | 
 10 | const successfullResponse = {
 11 |   statusCode: 200,
 12 |   body: "Connected"
 13 | };
 14 | 
 15 | const jose = require("node-jose");
 16 | const fetch = require("node-fetch");
 17 | fetch.Promise = Bluebird;
 18 | 
 19 | module.exports.connectionManager = (event, context, callback) => {
 20 |   if (event.requestContext.eventType === "CONNECT") {
 21 |     addConnection(event.requestContext.connectionId)
 22 |       .then(() => {
 23 |         callback(null, successfullResponse);
 24 |       })
 25 |       .catch(err => {
 26 |         callback(null, JSON.stringify(err));
 27 |       });
 28 |   } else if (event.requestContext.eventType === "DISCONNECT") {
 29 |     deleteConnection(event.requestContext.connectionId)
 30 |       .then(() => {
 31 |         callback(null, successfullResponse);
 32 |       })
 33 |       .catch(err => {
 34 |         callback(null, {
 35 |           statusCode: 500,
 36 |           body: "Failed to connect: " + JSON.stringify(err)
 37 |         });
 38 |       });
 39 |   }
 40 | };
 41 | 
 42 | module.exports.defaultMessage = (event, context, callback) => {
 43 |   callback(null);
 44 | };
 45 | 
 46 | module.exports.sendMessage = async (event, context, callback) => {
 47 |   let connectionData;
 48 |   try {
 49 |     connectionData = await DDB.scan({
 50 |       TableName: process.env.CHATCONNECTION_TABLE,
 51 |       ProjectionExpression: "connectionId"
 52 |     }).promise();
 53 |   } catch (err) {
 54 |     console.log(err);
 55 |     return { statusCode: 500 };
 56 |   }
 57 |   const postCalls = connectionData.Items.map(async ({ connectionId }) => {
 58 |     try {
 59 |       return await send(event, connectionId.S);
 60 |     } catch (err) {
 61 |       if (err.statusCode === 410) {
 62 |         return await deleteConnection(connectionId.S);
 63 |       }
 64 |       console.log(JSON.stringify(err));
 65 |       throw err;
 66 |     }
 67 |   });
 68 | 
 69 |   try {
 70 |     await Promise.all(postCalls);
 71 |   } catch (err) {
 72 |     console.log(err);
 73 |     callback(null, JSON.stringify(err));
 74 |   }
 75 |   callback(null, successfullResponse);
 76 | };
 77 | 
 78 | const send = (event, connectionId) => {
 79 |   const postData = JSON.parse(event.body).data;
 80 |   const apigwManagementApi = new AWS.ApiGatewayManagementApi({
 81 |     apiVersion: "2018-11-29",
 82 |     endpoint: event.requestContext.domainName + "/" + event.requestContext.stage
 83 |   });
 84 |   return apigwManagementApi
 85 |     .postToConnection({ ConnectionId: connectionId, Data: postData })
 86 |     .promise();
 87 | };
 88 | 
 89 | const addConnection = connectionId => {
 90 |   const putParams = {
 91 |     TableName: process.env.CHATCONNECTION_TABLE,
 92 |     Item: {
 93 |       connectionId: { S: connectionId }
 94 |     }
 95 |   };
 96 | 
 97 |   return DDB.putItem(putParams).promise();
 98 | };
 99 | 
100 | const deleteConnection = connectionId => {
101 |   const deleteParams = {
102 |     TableName: process.env.CHATCONNECTION_TABLE,
103 |     Key: {
104 |       connectionId: { S: connectionId }
105 |     }
106 |   };
107 | 
108 |   return DDB.deleteItem(deleteParams).promise();
109 | };
110 | 
111 | module.exports.authorizerFunc = async (event, context, callback) => {
112 |   const keys_url =
113 |     "https://cognito-idp.ap-southeast-2.amazonaws.com/USER_POOL_ID/.well-known/jwks.json";
114 |   const {
115 |     queryStringParameters: { token },
116 |     methodArn
117 |   } = event;
118 | 
119 |   const app_client_id = APP_CLIENT_ID;
120 |   if (!token) return context.fail("Unauthorized");
121 |   const sections = token.split(".");
122 |   let authHeader = jose.util.base64url.decode(sections[0]);
123 |   authHeader = JSON.parse(authHeader);
124 |   const kid = authHeader.kid;
125 |   const rawRes = await fetch(keys_url);
126 |   const response = await rawRes.json();
127 | 
128 |   if (rawRes.ok) {
129 |     const keys = response["keys"];
130 |     let key_index = -1;
131 |     keys.some((key, index) => {
132 |       if (kid == key.kid) {
133 |         key_index = index;
134 |       }
135 |     });
136 |     const foundKey = keys.find(key => {
137 |       return kid === key.kid;
138 |     });
139 | 
140 |     if (!foundKey) {
141 |       context.fail("Public key not found in jwks.json");
142 |     }
143 | 
144 |     jose.JWK.asKey(foundKey).then(function(result) {
145 |       // verify the signature
146 |       jose.JWS.createVerify(result)
147 |         .verify(token)
148 |         .then(function(result) {
149 |           // now we can use the claims
150 |           const claims = JSON.parse(result.payload);
151 |           // additionally we can verify the token expiration
152 |           const current_ts = Math.floor(new Date() / 1000);
153 |           if (current_ts > claims.exp) {
154 |             context.fail("Token is expired");
155 |           }
156 |           // and the Audience (use claims.client_id if verifying an access token)
157 |           if (claims.aud != app_client_id) {
158 |             context.fail("Token was not issued for this audience");
159 |           }
160 |           context.succeed(generateAllow("me", methodArn));
161 |         })
162 |         .catch(err => {
163 |           context.fail("Signature verification failed");
164 |         });
165 |     });
166 |   }
167 | };
168 | 
169 | const generatePolicy = function(principalId, effect, resource) {
170 |   var authResponse = {};
171 |   authResponse.principalId = principalId;
172 |   if (effect && resource) {
173 |     var policyDocument = {};
174 |     policyDocument.Version = "2012-10-17"; // default version
175 |     policyDocument.Statement = [];
176 |     var statementOne = {};
177 |     statementOne.Action = "execute-api:Invoke"; // default action
178 |     statementOne.Effect = effect;
179 |     statementOne.Resource = resource;
180 |     policyDocument.Statement[0] = statementOne;
181 |     authResponse.policyDocument = policyDocument;
182 |   }
183 |   return authResponse;
184 | };
185 | 
186 | const generateAllow = function(principalId, resource) {
187 |   return generatePolicy(principalId, "Allow", resource);
188 | };
189 | 
190 | const generateDeny = function(principalId, resource) {
191 |   return generatePolicy(principalId, "Deny", resource);
192 | };
193 | 


--------------------------------------------------------------------------------
/backend/package-lock.json:
--------------------------------------------------------------------------------
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1386 |       "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g=="
1387 |     },
1388 |     "whatwg-fetch": {
1389 |       "version": "2.0.4",
1390 |       "resolved": "http://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
1391 |       "integrity": "sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng=="
1392 |     },
1393 |     "which": {
1394 |       "version": "1.3.1",
1395 |       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
1396 |       "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
1397 |       "dev": true,
1398 |       "requires": {
1399 |         "isexe": "^2.0.0"
1400 |       }
1401 |     },
1402 |     "wordwrap": {
1403 |       "version": "1.0.0",
1404 |       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
1405 |       "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
1406 |       "dev": true
1407 |     },
1408 |     "wrappy": {
1409 |       "version": "1.0.2",
1410 |       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
1411 |       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
1412 |     },
1413 |     "write": {
1414 |       "version": "1.0.3",
1415 |       "resolved": "https://registry.npmjs.org/write/-/write-1.0.3.tgz",
1416 |       "integrity": "sha512-/lg70HAjtkUgWPVZhZcm+T4hkL8Zbtp1nFNOn3lRrxnlv50SRBv7cR7RqR+GMsd3hUXy9hWBo4CHTbFTcOYwig==",
1417 |       "dev": true,
1418 |       "requires": {
1419 |         "mkdirp": "^0.5.1"
1420 |       }
1421 |     },
1422 |     "xml2js": {
1423 |       "version": "0.4.19",
1424 |       "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
1425 |       "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
1426 |       "requires": {
1427 |         "sax": ">=0.6.0",
1428 |         "xmlbuilder": "~9.0.1"
1429 |       }
1430 |     },
1431 |     "xmlbuilder": {
1432 |       "version": "9.0.7",
1433 |       "resolved": "http://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
1434 |       "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0="
1435 |     },
1436 |     "xtend": {
1437 |       "version": "4.0.1",
1438 |       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
1439 |       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
1440 |     },
1441 |     "zip-stream": {
1442 |       "version": "1.2.0",
1443 |       "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
1444 |       "integrity": "sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=",
1445 |       "requires": {
1446 |         "archiver-utils": "^1.3.0",
1447 |         "compress-commons": "^1.2.0",
1448 |         "lodash": "^4.8.0",
1449 |         "readable-stream": "^2.0.0"
1450 |       }
1451 |     }
1452 |   }
1453 | }
1454 | 


--------------------------------------------------------------------------------
/backend/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "chat",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "handler.js",
 6 |   "dependencies": {
 7 |     "aws-sdk": "^2.382.0",
 8 |     "bluebird": "^3.5.3",
 9 |     "serverless-websockets-plugin": "^1.0.0",
10 |     "node-fetch": "^2.3.0",
11 |     "node-jose": "^1.1.0"
12 |   },
13 |   "devDependencies": {
14 |     "eslint": "^5.15.1"
15 |   },
16 |   "scripts": {
17 |     "test": "echo \"Error: no test specified\" && exit 1"
18 |   },
19 |   "author": "",
20 |   "license": "ISC"
21 | }
22 | 


--------------------------------------------------------------------------------
/backend/serverless.yml:
--------------------------------------------------------------------------------
 1 | service: serverless-chat
 2 | 
 3 | provider:
 4 |   name: aws
 5 |   runtime: nodejs8.10
 6 |   stackName: ${self:service}-${self:provider.stage}
 7 |   stage: ${opt:stage, 'dev'}
 8 |   region: ${opt:region, 'ap-southeast-2'}
 9 |   iamRoleStatements:
10 |     - Effect: Allow
11 |       Action:
12 |         - "execute-api:ManageConnections"
13 |       Resource:
14 |         - "arn:aws:execute-api:*:*:**/@connections/*"
15 |     - Effect: Allow
16 |       Action:
17 |         - "dynamodb:PutItem"
18 |         - "dynamodb:GetItem"
19 |         - "dynamodb:UpdateItem"
20 |         - "dynamodb:DeleteItem"
21 |         - "dynamodb:Query"
22 |         - "dynamodb:Scan"
23 |       Resource:
24 |         - Fn::GetAtt: [ChatConnectionsTable, Arn]
25 |         - Fn::Join:
26 |             - "/"
27 |             - - Fn::GetAtt: [ChatConnectionsTable, Arn]
28 |               - "*"
29 |   environment:
30 |     CHATCONNECTION_TABLE:
31 |       Ref: ChatConnectionsTable
32 | 
33 |   websocketApiName: websocket-chat-${self:provider.stage}
34 |   websocketApiRouteSelectionExpression: $request.body.action
35 | 
36 | functions:
37 |   connectionManager:
38 |     handler: handler.connectionManager
39 |     events:
40 |       - websocket:
41 |           route: $connect
42 |           authorizer: authorizerFunc # references the authorizerFunc function below
43 |       - websocket:
44 |           route: $disconnect
45 |   authorizerFunc:
46 |     handler: handler.authorizerFunc
47 |   defaultMessages:
48 |     handler: handler.defaultMessage
49 |     events:
50 |       - websocket:
51 |           route: $default
52 |   sendMessage:
53 |     handler: handler.sendMessage
54 |     events:
55 |       - websocket:
56 |           route: sendMessage
57 | resources:
58 |   Resources:
59 |     ChatConnectionsTable:
60 |       Type: AWS::DynamoDB::Table
61 |       Properties:
62 |         AttributeDefinitions:
63 |           - AttributeName: connectionId
64 |             AttributeType: S
65 |         KeySchema:
66 |           - AttributeName: connectionId
67 |             KeyType: HASH
68 |         ProvisionedThroughput:
69 |           ReadCapacityUnits: 5
70 |           WriteCapacityUnits: 5
71 | 


--------------------------------------------------------------------------------
/frontend/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "chatapp",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "aws-amplify": "^1.1.17",
 7 |     "aws-amplify-react": "^2.2.4",
 8 |     "react": "^16.8.4",
 9 |     "react-chat-window": "^1.0.8",
10 |     "react-dom": "^16.8.4",
11 |     "react-scripts": "2.1.1",
12 |     "sockette": "^2.0.5"
13 |   },
14 |   "scripts": {
15 |     "start": "react-scripts start",
16 |     "build": "react-scripts build",
17 |     "test": "react-scripts test",
18 |     "eject": "react-scripts eject"
19 |   },
20 |   "eslintConfig": {
21 |     "extends": "react-app"
22 |   },
23 |   "browserslist": [
24 |     ">0.2%",
25 |     "not dead",
26 |     "not ie <= 11",
27 |     "not op_mini all"
28 |   ]
29 | }
30 | 


--------------------------------------------------------------------------------
/frontend/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/yai333/React-Chat-App-using-AWS-API-Gateway-Websocket-and-Serverless-Framework/3f23a121a0b61840843a936478a6d7e485d35cab/frontend/public/favicon.ico


--------------------------------------------------------------------------------
/frontend/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
 6 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 7 |     <meta name="theme-color" content="#000000">
 8 |     <!--
 9 |       manifest.json provides metadata used when your web app is added to the
10 |       homescreen on Android. See https://developers.google.com/web/fundamentals/web-app-manifest/
11 |     -->
12 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
13 |     <!--
14 |       Notice the use of %PUBLIC_URL% in the tags above.
15 |       It will be replaced with the URL of the `public` folder during the build.
16 |       Only files inside the `public` folder can be referenced from the HTML.
17 | 
18 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
19 |       work correctly both with client-side routing and a non-root public URL.
20 |       Learn how to configure a non-root public URL by running `npm run build`.
21 |     -->
22 |     <title>React App</title>
23 |   </head>
24 |   <body>
25 |     <noscript>
26 |       You need to enable JavaScript to run this app.
27 |     </noscript>
28 |     <div id="root"></div>
29 |     <!--
30 |       This HTML file is a template.
31 |       If you open it directly in the browser, you will see an empty page.
32 | 
33 |       You can add webfonts, meta tags, or analytics to this file.
34 |       The build step will place the bundled scripts into the <body> tag.
35 | 
36 |       To begin the development, run `npm start` or `yarn start`.
37 |       To create a production bundle, use `npm run build` or `yarn build`.
38 |     -->
39 |   </body>
40 | </html>
41 | 


--------------------------------------------------------------------------------
/frontend/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": ".",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


--------------------------------------------------------------------------------
/frontend/src/App.css:
--------------------------------------------------------------------------------
 1 | .App {
 2 |   text-align: center;
 3 | }
 4 | 
 5 | .App-logo {
 6 |   animation: App-logo-spin infinite 20s linear;
 7 |   height: 40vmin;
 8 | }
 9 | 
10 | .App-header {
11 |   background-color: #eee;
12 |   min-height: 100vh;
13 |   display: flex;
14 |   flex-direction: column;
15 |   align-items: center;
16 |   justify-content: center;
17 |   font-size: calc(10px + 2vmin);
18 |   color: #444;
19 | }
20 | 
21 | .App-link {
22 |   color: #444;
23 | }
24 | 
25 | @keyframes App-logo-spin {
26 |   from {
27 |     transform: rotate(0deg);
28 |   }
29 |   to {
30 |     transform: rotate(360deg);
31 |   }
32 | }
33 | 


--------------------------------------------------------------------------------
/frontend/src/App.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from "react";
 2 | import Amplify from "aws-amplify";
 3 | import { withAuthenticator } from "aws-amplify-react";
 4 | import aws_exports from "./config";
 5 | import logo from "./logo.svg";
 6 | import "./App.css";
 7 | import ChatWindow from "./chatWindow";
 8 | 
 9 | Amplify.configure(aws_exports);
10 | 
11 | class App extends Component {
12 |   render() {
13 |     return (
14 |       <div className="App">
15 |         <header className="App-header">
16 |           <img src={logo} className="App-logo" alt="logo" />
17 |           <p>
18 |             Edit <code>src/App.js</code> and save to reload.
19 |           </p>
20 |           <a
21 |             className="App-link"
22 |             href="https://reactjs.org"
23 |             target="_blank"
24 |             rel="noopener noreferrer"
25 |           >
26 |             Learn React
27 |           </a>
28 |         </header>
29 |         <ChatWindow {...this.props} />
30 |       </div>
31 |     );
32 |   }
33 | }
34 | 
35 | export default withAuthenticator(App, { includeGreetings: true }, false);
36 | 


--------------------------------------------------------------------------------
/frontend/src/App.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import App from './App';
 4 | 
 5 | it('renders without crashing', () => {
 6 |   const div = document.createElement('div');
 7 |   ReactDOM.render(<App />, div);
 8 |   ReactDOM.unmountComponentAtNode(div);
 9 | });
10 | 


--------------------------------------------------------------------------------
/frontend/src/chatWindow.js:
--------------------------------------------------------------------------------
 1 | import React, { useEffect, useState } from "react";
 2 | import { Launcher } from "react-chat-window";
 3 | import Sockette from "sockette";
 4 | let ws = null;
 5 | 
 6 | const ChatWindow = props => {
 7 |   const [messageList, setMessageList] = useState([]);
 8 |   const [badge, setBadge] = useState(0);
 9 |   const [isOpen, setIsOpen] = useState(false);
10 |   const { username } = props.authData;
11 | 
12 |   useEffect(
13 |     () => {
14 |       if (props.authData)
15 |         ws = new Sockette(
16 |           "wss://APP_CLIENT_ID.execute-api.ap-southeast-2.amazonaws.com/dev?token=" +
17 |             props.authData.signInUserSession.accessToken.jwtToken,
18 |           {
19 |             timeout: 5e3,
20 |             maxAttempts: 1,
21 |             onopen: e => console.log("connected:", e),
22 |             onmessage: e => onMessageReceied(e),
23 |             onreconnect: e => console.log("Reconnecting...", e),
24 |             onmaximum: e => console.log("Stop Attempting!", e),
25 |             onclose: e => console.log("Closed!", e),
26 |             onerror: e => console.log("Error:", e)
27 |           }
28 |         );
29 |       return function cleanup() {
30 |         ws && ws.close();
31 |         ws = null;
32 |       };
33 |     },
34 |     [messageList]
35 |   );
36 | 
37 |   const handleClick = () => {
38 |     setIsOpen(!isOpen);
39 |     setBadge(0);
40 |   };
41 | 
42 |   const onMessageWasSent = message => {
43 |     const newMessage = { ...message, author: username };
44 |     ws.json({
45 |       action: "sendMessage",
46 |       data: JSON.stringify(newMessage)
47 |     });
48 |   };
49 | 
50 |   const onMessageReceied = ({ data }) => {
51 |     const { author, type, data: messageData } = JSON.parse(data);
52 |     const isMe = username === author ? "me" : "them";
53 |     if (!isOpen) {
54 |       setBadge(+badge + 1);
55 |     }
56 |     setMessageList([
57 |       ...messageList,
58 |       {
59 |         author: isMe,
60 |         type,
61 |         data: messageData
62 |       }
63 |     ]);
64 |   };
65 |   return (
66 |     <div>
67 |       <Launcher
68 |         agentProfile={{
69 |           teamName: "react-live-chat",
70 |           imageUrl:
71 |             "https://a.slack-edge.com/66f9/img/avatars-teams/ava_0001-34.png"
72 |         }}
73 |         onMessageWasSent={onMessageWasSent}
74 |         messageList={messageList}
75 |         handleClick={handleClick}
76 |         isOpen={isOpen}
77 |         showEmoji
78 |         newMessagesCount={badge}
79 |       />
80 |     </div>
81 |   );
82 | };
83 | 
84 | export default ChatWindow;
85 | 


--------------------------------------------------------------------------------
/frontend/src/config.js:
--------------------------------------------------------------------------------
 1 | const aws_exports = {
 2 |   Auth: {
 3 |     region: "ap-southeast-2",
 4 |     userPoolId: "USER_POOL_ID",
 5 |     userPoolWebClientId: "APP_CLIENT_ID",
 6 |     mandatorySignIn: false,
 7 |     authenticationFlowType: "USER_SRP_AUTH"
 8 |   }
 9 | };
10 | 
11 | export default aws_exports;
12 | 


--------------------------------------------------------------------------------
/frontend/src/index.css:
--------------------------------------------------------------------------------
 1 | body {
 2 |   margin: 0;
 3 |   padding: 0;
 4 |   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
 5 |     "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
 6 |     sans-serif;
 7 |   -webkit-font-smoothing: antialiased;
 8 |   -moz-osx-font-smoothing: grayscale;
 9 | }
10 | 
11 | code {
12 |   font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
13 |     monospace;
14 | }
15 | 


--------------------------------------------------------------------------------
/frontend/src/index.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import * as serviceWorker from './serviceWorker';
 6 | 
 7 | ReactDOM.render(<App />, document.getElementById('root'));
 8 | 
 9 | // If you want your app to work offline and load faster, you can change
10 | // unregister() to register() below. Note this comes with some pitfalls.
11 | // Learn more about service workers: http://bit.ly/CRA-PWA
12 | serviceWorker.unregister();
13 | 


--------------------------------------------------------------------------------
/frontend/src/logo.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
2 |     <g fill="#61DAFB">
3 |         <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
4 |         <circle cx="420.9" cy="296.5" r="45.7"/>
5 |         <path d="M520.5 78.1z"/>
6 |     </g>
7 | </svg>
8 | 


--------------------------------------------------------------------------------
/frontend/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 | 


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