feat(angular-db): add Angular injectLiveQuery helper with tests and example app (#424)

Co-authored-by: Kyle Mathews <mathews.kyle@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>

Author: 3 people

.changeset/angular-db-initial-release.md

@@ -0,0 +1,5 @@
+---
+"@tanstack/angular-db": minor
+---
+
+Add @tanstack/angular-db package with Angular integration for TanStack DB

docs/config.json

@@ -58,6 +58,15 @@
               "to": "framework/svelte/adapter"
             }
           ]
+        },
+        {
+          "label": "angular",
+          "children": [
+            {
+              "label": "Angular Adapter",
+              "to": "framework/angular/adapter"
+            }
+          ]
         }
       ]
     },
@@ -198,6 +207,19 @@
               "to": "framework/vue/reference/interfaces/uselivequeryreturnwithcollection"
             }
           ]
+        },
+        {
+          "label": "angular",
+          "children": [
+            {
+              "label": "Angular Functions",
+              "to": "framework/angular/reference/index"
+            },
+            {
+              "label": "injectLiveQuery",
+              "to": "framework/angular/reference/functions/injectlivequery"
+            }
+          ]
         }
       ]
     }

docs/framework/angular/adapter.md

@@ -0,0 +1,16 @@
+---
+title: TanStack DB Angular Adapter
+id: adapter
+---
+
+## Installation
+
+```sh
+npm install @tanstack/angular-db
+```
+
+## Angular inject function
+
+See the [Angular Functions Reference](../reference/index.md) to see the full list of functions available in the Angular Adapter.
+
+## Basic Usage

docs/guides/live-queries.md

@@ -137,7 +137,30 @@ function UserList() {
 }
 ```
 
-For more details on framework integration, see the [React](../../framework/react/adapter) and [Vue](../../framework/vue/adapter) adapter documentation.
+In Angular, you can use the `injectLiveQuery` function:
+
+```typescript
+import { Component } from '@angular/core'
+import { injectLiveQuery } from '@tanstack/angular-db'
+
+@Component({
+  selector: 'user-list',
+  template: `
+    @for (user of activeUsers.data(); track user.id) {
+      <li>{{ user.name }}</li>
+    }
+  `
+})
+export class UserListComponent {
+  activeUsers = injectLiveQuery((q) =>
+    q
+      .from({ user: usersCollection })
+      .where(({ user }) => eq(user.active, true))
+  )
+}
+```
+
+For more details on framework integration, see the [React](../../framework/react/adapter), [Vue](../../framework/vue/adapter), and [Angular](../../framework/angular/adapter) adapter documentation.
 
 ## From Clause
 

docs/installation.md

@@ -33,6 +33,14 @@ npm install @tanstack/vue-db
 
 TanStack DB is compatible with Vue v3.3.0+
 
+## Angular
+
+```sh
+npm install @tanstack/angular-db
+```
+
+TanStack DB is compatible with Angular v16.0.0+
+
 ## Vanilla JS
 
 ```sh

eslint.config.mjs

@@ -11,6 +11,7 @@ export default [
       `**/.output/**`,
       `**/.nitro/**`,
       `**/traildepot/**`,
+      `examples/angular/**`,
     ],
   },
   {

examples/angular/todos/.editorconfig

@@ -0,0 +1,17 @@
+# 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
+ij_typescript_use_double_quotes = false
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

examples/angular/todos/.gitignore

@@ -0,0 +1,42 @@
+# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+
+# System files
+.DS_Store
+Thumbs.db

examples/angular/todos/.postcssrc.json

@@ -0,0 +1,6 @@
+{
+  "plugins": {
+    "tailwindcss": {},
+    "autoprefixer": {}
+  }
+}

examples/angular/todos/README.md

@@ -0,0 +1,59 @@
+# Todos
+
+This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 20.1.6.
+
+## Development server
+
+To start a local development server, run:
+
+```bash
+ng serve
+```
+
+Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
+
+## Code scaffolding
+
+Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
+
+```bash
+ng generate component component-name
+```
+
+For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
+
+```bash
+ng generate --help
+```
+
+## Building
+
+To build the project run:
+
+```bash
+ng build
+```
+
+This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
+
+## Running unit tests
+
+To execute unit tests with the [Karma](https://karma-runner.github.io) test runner, use the following command:
+
+```bash
+ng test
+```
+
+## Running end-to-end tests
+
+For end-to-end (e2e) testing, run:
+
+```bash
+ng e2e
+```
+
+Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
+
+## Additional Resources
+
+For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.