Angular Project — Build a Complete Angular Application

Q: How do I handle environment variables?

Use `src/environments/environment.ts` for dev and `environment.prod.ts` for production. Import them as needed.

Q: What testing framework should I use?

Jasmine with Karma is the Angular default. Jest with `@angular-builders/jest` is a popular alternative.

DodaTech Updated 2026-06-28 6 min read

In this tutorial, you will learn about Angular Project. We cover key concepts, practical examples, and best practices to help you master this topic.

Build a complete Angular application step by step, applying everything you learned about components, services, routing, forms, state management, and deployment.

What You'll Learn

How to architect a real Angular application
How to implement features across multiple modules
How to integrate with a backend API
How to handle authentication and authorization
How to deploy an Angular application

Why It Matters

Building a complete project consolidates all your Angular knowledge into a single practical exercise. It bridges the gap between learning individual concepts and shipping a real application.

Real-World Use

This project, a Task Management Dashboard, mirrors the architecture of Durga Antivirus Pro's administration panel: authenticated routes, data tables, forms, real-time updates, and role-based access.

flowchart TD
    A[Angular CLI] --> B[Scaffold Project]
    B --> C[Auth Module]
    B --> D[Task Module]
    B --> E[Admin Module]
    C --> F[Login / Register]
    D --> G[Task List / Task Detail / Task Form]
    E --> H[User Management / Reports]
    F --> I[Dashboard]
    G --> I
    H --> I
    style A fill:#f97316,color:#fff

Project Setup

Create the project with routing and standalone:

ng new task-dashboard --standalone --routing
cd task-dashboard
npm install @ngrx/store @ngrx/effects @ngrx/entity @ngrx/store-devtools

Project Structure

src/
├── app/
│   ├── core/              # Singleton services, guards, interceptors
│   │   ├── auth/
│   │   ├── guards/
│   │   └── interceptors/
│   ├── features/          # Feature modules
│   │   ├── auth/          # Login, register components
│   │   ├── tasks/         # Task CRUD, list, detail
│   │   ├── dashboard/     # Dashboard with stats
│   │   └── admin/         # Admin panel (lazy loaded)
│   ├── shared/            # Reusable components, pipes, directives
│   │   ├── components/
│   │   ├── pipes/
│   │   └── directives/
│   ├── store/             # NgRx state management
│   │   ├── task/
│   │   ├── auth/
│   │   └── ui/
│   ├── models/            # TypeScript interfaces
│   └── app.config.ts      # App configuration

Feature 1: Authentication

Create an auth service with login, register, and token management:

import { Injectable, inject } from "@angular/core";
import { HttpClient } from "@angular/common/http";
import { Observable, tap } from "rxjs";
import { Router } from "@angular/router";

export interface LoginRequest {
  email: string;
  password: string;
}

export interface AuthResponse {
  token: string;
  user: { id: number; name: string; email: string; role: string };
}

@Injectable({ providedIn: "root" })
export class AuthService {
  private http = inject(HttpClient);
  private router = inject(Router);
  private apiUrl = "/api/auth";

  login(credentials: LoginRequest): Observable<AuthResponse> {
    return this.http.post<AuthResponse>(`${this.apiUrl}/login`, credentials).pipe(
      tap(response => {
        localStorage.setItem("auth_token", response.token);
        localStorage.setItem("user", JSON.stringify(response.user));
      })
    );
  }

  logout() {
    localStorage.removeItem("auth_token");
    localStorage.removeItem("user");
    this.router.navigate(["/login"]);
  }

  getToken(): string | null {
    return localStorage.getItem("auth_token");
  }

  isLoggedIn(): boolean {
    return !!this.getToken();
  }
}

Expected output: Users can log in and receive a token. The token is stored and used for subsequent API requests.

Feature 2: Task Management

Build the task list with state management:

import { Component, OnInit, inject } from "@angular/core";
import { CommonModule } from "@angular/common";
import { Store } from "@ngrx/store";
import { Observable } from "rxjs";
import { Task } from "../../models/task.model";
import * as TaskActions from "../../store/task/task.actions";
import { selectAllTasks, selectLoading } from "../../store/task/task.selectors";
import { TaskCardComponent } from "./task-card/task-card.component";
import { TaskFormComponent } from "./task-form/task-form.component";

@Component({
  selector: "app-task-list",
  standalone: true,
  imports: [CommonModule, TaskCardComponent, TaskFormComponent],
  template: `
    <div class="task-page">
      <header>
        <h1>Tasks</h1>
        <app-task-form (taskCreated)="addTask($event)"></app-task-form>
      </header>
      <div *ngIf="loading$ | async" class="loading">Loading...</div>
      <div class="task-grid">
        <app-task-card
          *ngFor="let task of tasks$ | async"
          [task]="task"
          (statusChange)="toggleTask($event)"
          (delete)="deleteTask($event)"
        ></app-task-card>
      </div>
    </div>
  `,
  styles: [`
    .task-page { padding: 24px; }
    .task-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; margin-top: 16px; }
    .loading { text-align: center; padding: 40px; color: #666; }
  `]
})
export class TaskListComponent implements OnInit {
  private store = inject(Store);
  tasks$: Observable<Task[]> = this.store.select(selectAllTasks);
  loading$: Observable<boolean> = this.store.select(selectLoading);

  ngOnInit() {
    this.store.dispatch(TaskActions.loadTasks());
  }

  addTask(task: Partial<Task>) {
    this.store.dispatch(TaskActions.addTask({ task }));
  }

  toggleTask(id: string) {
    this.store.dispatch(TaskActions.toggleTask({ id }));
  }

  deleteTask(id: string) {
    this.store.dispatch(TaskActions.deleteTask({ id }));
  }
}

Expected output: A task list that loads from the API, displays tasks in a grid, and supports create, toggle, and delete operations.

Feature 3: Dashboard with Analytics

Create a dashboard component with real-time statistics:

import { Component, inject } from "@angular/core";
import { CommonModule } from "@angular/common";
import { Store } from "@ngrx/store";
import { map } from "rxjs/operators";
import { selectAllTasks } from "../../store/task/task.selectors";

@Component({
  selector: "app-dashboard",
  standalone: true,
  imports: [CommonModule],
  template: `
    <div class="dashboard">
      <div class="stat-card" *ngFor="let stat of stats">
        <h3>{{ stat.label }}</h3>
        <p class="stat-value">{{ stat.value }}</p>
      </div>
    </div>
  `,
  styles: [`
    .dashboard { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; padding: 24px; }
    .stat-card { background: #f8f9fa; padding: 24px; border-radius: 8px; text-align: center; }
    .stat-value { font-size: 2.5rem; font-weight: bold; color: #f97316; margin: 8px 0; }
  `]
})
export class DashboardComponent {
  private store = inject(Store);

  stats = [
    { label: "Total Tasks", value$: this.store.select(selectAllTasks).pipe(map(t => t.length)) },
    { label: "Completed", value$: this.store.select(selectAllTasks).pipe(map(t => t.filter(t => t.completed).length)) },
    { label: "Pending", value$: this.store.select(selectAllTasks).pipe(map(t => t.filter(t => !t.completed).length)) },
    { label: "High Priority", value$: this.store.select(selectAllTasks).pipe(map(t => t.filter(t => t.priority === "high").length)) },
  ];
}

Expected output: A dashboard with stat cards showing task counts, computed from the store.

Deployment

Build and deploy the application:

# Production build
ng build --configuration production

# Deploy to Netlify
npx netlify-cli deploy --dir=dist/task-dashboard --prod

Expected output: A production build in dist/ and a deployed application on Netlify.

Common Mistakes

Skipping environment configuration — Set up environment.ts and environment.prod.ts for API URLs before writing feature code.
Not handling loading and error states — Every data-fetching component needs loading, error, and empty states for professional UX.
Over-engineering the store — Start with a simple component architecture and add NgRx only when you genuinely need shared state.
Missing route guards — Protect authenticated routes. A user should not see the dashboard without logging in.
Not Lazy Loading feature routes — Lazy load admin and less-used features. The initial bundle should only contain the login page and dashboard shell.

FAQ

What is the recommended project structure for Angular?

Feature-based structure: core for singletons, features for lazy modules, shared for reusable code. Domain-first, not type-first.

Should I use Angular Universal for this project?

If SEO matters, add SSR. Otherwise, SPA is simpler to deploy and maintain.

How do I handle environment variables?

Use src/environments/environment.ts for dev and environment.prod.ts for production. Import them as needed.

What testing framework should I use?

Jasmine with Karma is the Angular default. Jest with @angular-builders/jest is a popular alternative.

How do I monitor production errors?

Integrate with error tracking services like Sentry or Datadog. Set up a global error handler via ErrorHandler.

Mini Project

Complete the TaskDashboardApp with the following features:

User authentication with login and registration
Task CRUD with NgRx state management
Dashboard with analytics cards
Admin panel for user management (lazy loaded)
Dark/light theme toggle persisted to localStorage
Responsive Design
Route guards for protected routes
HTTP error interceptor with toast notifications
Unit tests for all services and main components

What's Next

You have completed the Angular tutorial path. Continue with:

React, Vue, TypeScript

← Previous Angular State Management with NgRx Explained — Complete Guide

Built by the developers of DodaTech

Doda Browser, DodaZIP & Durga Antivirus Pro

Home Browse Angular