add firestore 2nd gen sample

Author: colerogers

2nd-gen/uppercase-firestore/.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+firebase-debug.log*
+
+# Firebase cache
+.firebase/
+
+# Firebase config
+
+# Uncomment this if you'd like others to create their own Firebase project.
+# For a team working on the same Firebase project(s), it is recommended to leave
+# it commented so all members can deploy to the same project(s) in .firebaserc.
+# .firebaserc
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env

2nd-gen/uppercase-firestore/README.md

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+# Firebase SDK for Cloud Functions Quickstart - Firestore
+
+This quickstart demonstrates using the **Firebase SDK for Cloud Functions** with
+**Firestore**.
+
+## Introduction
+
+This sample app does two things:
+
+- Creates messages in Firestore using a simple HTTPS request which is
+  handled by an HTTP function. Writing to Firestore is done using the
+  Firebase Admin SDK.
+- When a message gets added in Firestore, a function triggers and
+  automatically makes these messages all uppercase.
+
+## Set up the sample
+
+Before you can test the functions locally or deploy to a Firebase project,
+you'll need to run `npm install` in the `functions` directory.
+
+## Run locally with the Firebase Emulator suite
+
+The
+[Firebase Local Emulator Suite](https://firebase.google.com/docs/emulator-suite)
+allows you to build and test apps on your local machine instead of deploying to
+a Firebase project.
+
+1. Create a Firebase project in the
+   [Firebase Console](https://console.firebase.google.com)
+   > _Wondering why this step is needed?_ Even though the emulator will run this
+   > sample on your local machine, it needs to interact with a Firebase project
+   > to retrieve some configuration values.
+1. [Set up or update the Firebase CLI](https://firebase.google.com/docs/cli#setup_update_cli)
+1. Run `firebase emulators:start`
+1. Open the Emulator Suite UI
+   1. Look in the output of the `firebase emulators:start` command for the URL
+      of the Emulator Suite UI. It defaults to
+      [localhost:4000](http://localhost:4000), but may be hosted on a different
+      port on your machine.
+   1. Enter that URL in your browser to open the UI.
+1. Trigger the functions
+   1. Look in the output of the `firebase emulators:start` command for the URL
+      of the http function "addmessage". It will look similar to:
+      `http://localhost:5001/MY_PROJECT/us-central1/addmessage`
+      1. `MY_PROJECT` will be replaced with your project ID
+      1. The port may be different on your local machine
+   1. Add the query string `?text=uppercaseme` to the end of the function's URL.
+      It should now look something like:
+      `http://localhost:5001/MY_PROJECT/us-central1/addmessage?text=uppercaseme`
+      1. Optionally, you can change the message "uppercaseme" to a custom
+         message
+   1. Create a new message by opening the URL in a new tab in your browser
+1. View the effects of the functions in the Emulator Suite UI
+
+   1. In the "Logs" tab, you should see new logs indicating that the functions
+      "addmessage" and "makeuppercase" ran:
+
+      > `functions: Beginning execution of "addmessage"`
+
+      > `functions: Beginning execution of "makeuppercase"`
+
+   1. In the "Firestore" tab, you should see a document containing your original
+      message as well as the uppercased version of your message (if it was
+      originally "uppercaseme", you'll see "UPPERCASEME")
+
+## Deploy and test on a live Firebase project
+
+To deploy and test the sample:
+
+1. Create a Firebase project on the
+   [Firebase Console](https://console.firebase.google.com)
+1. Deploy your project's code using `firebase deploy`
+1. Create a message by opening the function URL in your browser.
+
+You should see your text value displayed in the console and uppercase.
+
+## Contributing
+
+We'd love that you contribute to the project. Before doing so please read our
+[Contributor guide](../../CONTRIBUTING.md).
+
+## License
+
+© Google, 2023. Licensed under an [Apache-2](../../LICENSE) license.

2nd-gen/uppercase-firestore/firebase.json

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+{
+  "firestore": {
+    "rules": "firestore.rules",
+    "indexes": "firestore.indexes.json"
+  },
+  "emulators": {
+    "functions": {
+      "port": 5001
+    },
+    "firestore": {
+      "port": 8080
+    },
+    "ui": {
+      "enabled": true
+    }
+  }
+}

2nd-gen/uppercase-firestore/firestore.indexes.json

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

2nd-gen/uppercase-firestore/firestore.rules

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+service cloud.firestore {
+  match /databases/{database}/documents {
+    match /messages/{message} {
+      // Allow authenticated users to read/write the messages collection
+      allow read, write: if request.auth != null;
+    }
+  }
+}

2nd-gen/uppercase-firestore/functions/.eslintrc.js

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+module.exports = {
+  root: true,
+  env: {
+    es2020: true,
+    node: true,
+  },
+  extends: [
+    "eslint:recommended",
+    "google",
+  ],
+  rules: {
+    quotes: ["error", "double"],
+  },
+};

2nd-gen/uppercase-firestore/functions/.gitignore

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+node_modules/

2nd-gen/uppercase-firestore/functions/index.js

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+/**
+ * Copyright 2023 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the 'License');
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an 'AS IS' BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+'use strict';
+
+// [START all]
+// [START import]
+// The Cloud Functions for Firebase SDK to create Cloud Functions and set up triggers.
+const {logger} = require('firebase-functions');
+const {onRequest} = require('firebase-functions/v2/https');
+const {onDocumentCreated} = require('firebase-functions/v2/firestore');
+
+// The Firebase Admin SDK to access Firestore.
+const admin = require('firebase-admin');
+admin.initializeApp();
+// [END import]
+
+// [START addmessage]
+// Take the text parameter passed to this HTTP endpoint and insert it into 
+// Firestore under the path /messages/:documentId/original
+// [START addmessageTrigger]
+exports.addmessage = onRequest(async (req, res) => {
+// [END addmessageTrigger]
+  // Grab the text parameter.
+  const original = req.query.text;
+  // [START adminSdkAdd]
+  // Push the new message into Firestore using the Firebase Admin SDK.
+  const writeResult = await admin.firestore().collection('messages').add({original: original});
+  // Send back a message that we've successfully written the message
+  res.json({result: `Message with ID: ${writeResult.id} added.`});
+  // [END adminSdkAdd]
+});
+// [END addmessage]
+
+// [START makeuppercase]
+// Listens for new messages added to /messages/:documentId/original and creates an
+// uppercase version of the message to /messages/:documentId/uppercase
+// [START makeuppercaseTrigger]
+exports.makeuppercase = onDocumentCreated('/messages/{documentId}', (event) => {
+// [END makeuppercaseTrigger]
+      // [START makeUppercaseBody]
+      // Grab the current value of what was written to Firestore.
+      const original = event.data.data().original;
+
+      // Access the parameter `{documentId}` with `context.params`
+      logger.log('Uppercasing', context.params.documentId, original);
+      
+      const uppercase = original.toUpperCase();
+      
+      // You must return a Promise when performing asynchronous tasks inside a Functions such as
+      // writing to Firestore.
+      // Setting an 'uppercase' field in Firestore document returns a Promise.
+      return event.data.ref.set({uppercase}, {merge: true});
+      // [END makeUppercaseBody]
+    });
+// [END makeuppercase]
+// [END all]

2nd-gen/uppercase-firestore/functions/package.json

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+{
+  "name": "functions",
+  "description": "Cloud Functions for Firebase",
+  "dependencies": {
+    "firebase-admin": "^11.5.0",
+    "firebase-functions": "^4.3.0"
+  },
+  "devDependencies": {
+    "chai": "^4.3.6",
+    "chai-as-promised": "^7.1.1",
+    "eslint": "^6.8.0",
+    "eslint-plugin-promise": "^4.3.1",
+    "mocha": "^7.2.0",
+    "sinon": "^9.2.4"
+  },
+  "scripts": {
+    "lint": "./node_modules/.bin/eslint --max-warnings=0 .",
+    "serve": "firebase emulators:start --only functions",
+    "shell": "firebase functions:shell",
+    "start": "npm run shell",
+    "deploy": "firebase deploy --only functions",
+    "logs": "firebase functions:log",
+    "compile": "cp ../../../tsconfig.template.json ./tsconfig-compile.json && tsc --project tsconfig-compile.json"
+  },
+  "engines": {
+    "node": "16"
+  },
+  "private": true
+}