boilerplate version

.gitignore

@@ -1,10 +1,12 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
 # dependencies
-/node_modules
+node_modules
 /.pnp
 .pnp.js
-.firebase
+
+# logs
+/backend/local/*.log
 
 # testing
 /coverage
@@ -19,6 +21,19 @@
 .env.test.local
 .env.production.local
 
+# logs
+/backend/*.log
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+# Compiled JavaScript files
+/backend/**/lib/**/*.js
+/backend/**/lib/**/*.js.map
+
+# TypeScript v1 declaration files
+typings/
+
+# Node.js dependency directory
+node_modules/
+

backend/.eslintrc.js

@@ -0,0 +1,29 @@
+module.exports = {
+  root: true,
+  env: {
+    es6: true,
+    node: true,
+  },
+  extends: [
+    "eslint:recommended",
+    "plugin:import/errors",
+    "plugin:import/warnings",
+    "plugin:import/typescript",
+    "google",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    project: ["tsconfig.json", "tsconfig.dev.json"],
+    sourceType: "module",
+  },
+  ignorePatterns: [
+    "/lib/**/*", // Ignore built files.
+  ],
+  plugins: ["@typescript-eslint", "import"],
+  rules: {
+    "quotes": ["error", "double"],
+    "semi": ["error", "never"],
+    "import/no-unresolved": 0,
+  },
+}

backend/.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "my-react-tutorial-189809"
+  }
+}

backend/Readme.md

@@ -0,0 +1,14 @@
+Local emulator suite for firebase ([documentation](https://firebase.google.com/docs/emulator-suite/))
+
+![](https://firebase.google.com/docs/emulator-suite/images/emulator-suite-usecase.png)
+
+# get ready
+
+- login `npm run firebase login`
+- install the firestore emulator: `npm run firebase setup:emulators:firestore` and the ui `npm run firebase setup:emulators:ui`
+- `npm run dev` and point your browser to to http://localhost:4000
+- `npm run shell` doc is https://firebase.google.com/docs/functions/local-emulator
+
+# troubleshooting
+
+- need java 11? [use homebrew and link your system to it](https://medium.com/@kirebyte/using-homebrew-to-install-java-jdk11-on-macos-2021-4a90aa276f1c)

backend/database.rules.json

@@ -0,0 +1,7 @@
+{
+  /* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
+  "rules": {
+    ".read": false,
+    ".write": false
+  }
+}

backend/firebase.json

@@ -0,0 +1,48 @@
+{
+  "database": {
+    "rules": "database.rules.json"
+  },
+  "firestore": {
+    "rules": "firestore.rules",
+    "indexes": "firestore.indexes.json"
+  },
+  "functions": [
+    {
+      "source": "./",
+      "codebase": "default",
+      "ignore": [
+        "node_modules",
+        ".git",
+        "firebase-debug.log",
+        "firebase-debug.*.log"
+      ],
+      "predeploy": [
+        "npm --prefix \"$RESOURCE_DIR\" run lint",
+        "npm --prefix \"$RESOURCE_DIR\" run build"
+      ]
+    }
+  ],
+  "hosting": {
+    "public": "public",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ]
+  },
+  "emulators": {
+    "auth": {
+      "port": 9099
+    },
+    "functions": {
+      "port": 5001
+    },
+    "firestore": {
+      "port": 8080
+    },
+    "ui": {
+      "enabled": true
+    },
+    "singleProjectMode": true
+  }
+}

backend/firestore.indexes.json

@@ -0,0 +1,4 @@
+{
+  "indexes": [],
+  "fieldOverrides": []
+}

backend/firestore.rules

@@ -0,0 +1,19 @@
+rules_version = '2';
+service cloud.firestore {
+  match /databases/{database}/documents {
+    match /{document=**} {
+      allow read, write: if true;
+    }
+    match /messages/{docId} { // sth is wrong in this logic :-\
+      allow read: if request.auth.id != null
+      allow create: if canCreateMessage();
+    }
+
+    function canCreateMessage() {
+    	let isSignedIn = request.auth.uid != null;
+      // let isOwner = request.auth.uid == request.resource.data.uid;
+
+      return isSignedIn; // || isOwner;
+    }
+  }
+}