Added a working final version of the codelab

angularfire/.editorconfig

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+# Editor configuration, see https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+quote_type = single
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

angularfire/.gitignore

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+/node_modules
+/dist
+.angular
+
+# Firebase
+.firebase
+*-debug.log
+.runtimeconfig.json

angularfire/README.md

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+# Friendlychat
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 16.0.4.
+
+## Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The application will automatically reload if you change any of the source files.
+
+## Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
+
+## Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory.
+
+## Running unit tests
+
+Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+## Running end-to-end tests
+
+Run `ng e2e` to execute the end-to-end tests via a platform of your choice. To use this command, you need to first add a package that implements end-to-end testing capabilities.
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI Overview and Command Reference](https://angular.io/cli) page.

angularfire/angular.json

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+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "cli": {
+    "packageManager": "npm",
+    "analytics": false
+  },
+  "newProjectRoot": "projects",
+  "projects": {
+    "friendlychat": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:application",
+          "options": {
+            "outputPath": "dist/friendlychat",
+            "index": "src/index.html",
+            "browser": "src/main.ts",
+            "polyfills": ["zone.js"],
+            "tsConfig": "tsconfig.app.json",
+            "assets": ["src/favicon.ico", "src/assets", "src/firebase-messaging-sw.js"],
+            "styles": ["src/styles.css"],
+            "scripts": []
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "500kb",
+                  "maximumError": "1mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "2kb",
+                  "maximumError": "4kb"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "optimization": false,
+              "extractLicenses": false,
+              "sourceMap": true,
+              "namedChunks": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "buildTarget": "friendlychat:build:production"
+            },
+            "development": {
+              "buildTarget": "friendlychat:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "buildTarget": "friendlychat:build"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "polyfills": ["zone.js", "zone.js/testing"],
+            "tsConfig": "tsconfig.spec.json",
+            "assets": ["src/favicon.ico", "src/assets"],
+            "styles": ["src/styles.css"],
+            "scripts": []
+          }
+        },
+        "deploy": {
+          "builder": "@angular/fire:deploy",
+          "options": {
+            "version": 2,
+            "browserTarget": "friendlychat:build:production"
+          }
+        }
+      }
+    }
+  }
+}

angularfire/firebase.json

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+{
+  "firestore": {
+    "rules": "firestore.rules",
+    "indexes": "firestore.indexes.json"
+  },
+  "hosting": [
+    {
+      "source": ".",
+      "ignore": [
+        "firebase.json",
+        "**/.*",
+        "**/node_modules/**"
+      ],
+      "frameworksBackend": {
+        "region": "us-central1"
+      }
+    },
+    {
+      "target": "friendlychat",
+      "source": ".",
+      "frameworksBackend": {}
+    }
+  ],
+  "storage": {
+    "rules": "storage.rules"
+  },
+  "emulators": {
+    "auth": {
+      "port": 9099
+    },
+    "functions": {
+      "port": 5001
+    },
+    "firestore": {
+      "port": 8080
+    },
+    "hosting": {
+      "port": 5000
+    },
+    "storage": {
+      "port": 9199
+    },
+    "ui": {
+      "enabled": true
+    },
+    "singleProjectMode": true
+  },
+  "functions": [
+    {
+      "source": "functions",
+      "codebase": "default",
+      "ignore": [
+        "node_modules",
+        ".git",
+        "firebase-debug.log",
+        "firebase-debug.*.log"
+      ],
+      "predeploy": [
+        "npm --prefix \"$RESOURCE_DIR\" run lint"
+      ]
+    }
+  ]
+}

angularfire/firestore.indexes.json

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+{
+  "indexes": [],
+  "fieldOverrides": []
+}

angularfire/firestore.rules

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+rules_version = '2';
+
+service cloud.firestore {
+  match /databases/{database}/documents {
+    match /{document=**} {
+      allow read, write;
+    }
+  }
+}

angularfire/functions/.gitignore

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+node_modules/

angularfire/functions/package.json

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+{
+  "name": "functions",
+  "description": "Cloud Functions for Firebase",
+  "scripts": {
+    "serve": "firebase emulators:start --only functions",
+    "shell": "firebase functions:shell",
+    "start": "npm run shell",
+    "deploy": "firebase deploy --only functions",
+    "logs": "firebase functions:log"
+  },
+  "engines": {
+    "node": "18"
+  },
+  "main": "index.js",
+  "dependencies": {
+    "firebase-admin": "^11.8.0",
+    "firebase-functions": "^4.3.1"
+  },
+  "devDependencies": {
+    "firebase-functions-test": "^3.1.0"
+  },
+  "private": true
+}