This project covers:
✅ CRUD Operations
✅ Angular Components
✅ Services
✅ Routing
✅ Reactive Forms
✅ HTTP Client
✅ Authentication
✅ Authorization
✅ Guards
✅ Interceptors
✅ Dependency Injection
✅ Pipes
✅ Directives
✅ RxJS
✅ TypeScript OOP Concepts
✅ Lazy Loading
✅ Angular Material Grid
✅ Pagination
✅ Search
✅ Filter
✅ Sorting
Project Structure
src
│
├── app
│
├── models
│ employee.ts
│ department.ts
│ role.ts
│ login.ts
│
├── services
│ employee.service.ts
│ auth.service.ts
│ department.service.ts
│
├── components
│ login
│ dashboard
│ employee-list
│ employee-add
│ employee-edit
│ navbar
│
├── guards
│ auth.guard.ts
│ admin.guard.ts
│
├── interceptors
│ token.interceptor.ts
│
├── pipes
│ salary.pipe.ts
│
├── directives
│ highlight.directive.ts
│
├── shared
│
├── app-routing.module.ts
│
└── app.module.ts
Database
Employee Table
EmployeeId
EmployeeName
DepartmentId
RoleId
Salary
Email
Phone
Status
CreatedDate
Department
DepartmentId
DepartmentName
Role
RoleId
RoleName
Screen 1 Login
-------------------------
Email
Password
Login Button
-------------------------
Authentication Flow
Login
↓
API
↓
JWT Token
↓
Local Storage
↓
Navigate Dashboard
Learn
Authentication
JWT
Local Storage
Session
HTTP POST
Observables
Dashboard
---------------------------------------
Employees
Departments
Roles
Logout
---------------------------------------
Employee List
--------------------------------------------------------
Department ▼
Role ▼
Search Box
--------------------------------------------------------
Grid
--------------------------------------------------------
ID
Name
Department
Role
Salary
Email
Status
Edit
Delete
--------------------------------------------------------
Pagination
--------------------------------------------------------
Here you'll learn
Data Binding
ngFor
ngIf
Pipes
Filtering
Sorting
Pagination
Event Binding
Two Dropdown Filters
Department
All
HR
IT
Finance
Admin
Role
All
Manager
Developer
Tester
Support
Example
Department = IT
Role = Developer
Grid
Ravi
Developer
IT
------
Ram
Developer
IT
CRUD Operations
Create
Add Employee
Read
Employee Grid
Update
Edit Employee
Delete
Delete Employee
Employee Form
Employee Name
Department Dropdown
Role Dropdown
Salary
Email
Phone
Status
Save
Reset
Learn
Reactive Forms
Validators
FormGroup
FormControl
FormBuilder
Validation
Service Layer
EmployeeService
getEmployees()
getEmployeeById()
addEmployee()
updateEmployee()
deleteEmployee()
searchEmployee()
filterEmployee()
Learn
Dependency Injection
Singleton Service
HTTP Client
Observable
Authentication
Login
↓
API
↓
Token
↓
Store Token
↓
Interceptor
↓
Every API gets Token
Learn
JWT
Bearer Token
Interceptor
Authorization
Roles
Admin
Manager
User
Permissions
Admin
Add
Edit
Delete
Manager
Add
Edit
User
View Only
Learn
Role Based Authorization
Route Guard
CanActivate
Angular Routing
login
dashboard
employees
employee/add
employee/edit/:id
Learn
RouterModule
RouterLink
Navigation
Lazy Loading
Interceptor
Automatically adds
Authorization
Bearer Token
to every request.
Learn
HTTP Interceptor
Clone Request
Headers
Guard
Before opening Employee Screen
Is Logged In?
↓
Yes
↓
Allow
↓
No
↓
Login
Learn
CanActivate
CanDeactivate
Angular Material
Use
Mat Table
Mat Sort
Mat Paginator
Mat Dialog
Mat Select
Mat Input
Mat Toolbar
Mat Card
Mat Icon
Mat Button
RxJS
Learn
Observable
Subject
BehaviorSubject
Map
Filter
Tap
SwitchMap
MergeMap
CatchError
Retry
TypeScript OOP Concepts
Class
export class Employee{
employeeId:number;
employeeName:string;
salary:number;
}
Object
let emp=new Employee();
emp.employeeName="John";
Constructor
constructor(){
console.log("Constructor");
}
Inheritance
class Person{
name:string="";
}
class Employee extends Person{
salary:number=0;
}
Encapsulation
class Employee{
private salary:number=1000;
}
Getter Setter
private salary:number;
setSalary(value:number){
this.salary=value;
}
getSalary(){
return this.salary;
}
Abstraction
abstract class Employee{
abstract calculateSalary();
}
Interface
export interface Employee{
id:number;
name:string;
}
Polymorphism
class Animal{
sound(){}
}
class Dog extends Animal{
sound(){
console.log("Bow");
}
}
Angular Concepts Covered
| Concept | Explanation |
|---|---|
| Components | UI building blocks that control a portion of the screen. |
| Modules | Organize related components, services, and other code into logical groups. |
| Services | Contain reusable business logic and API calls. |
| Dependency Injection | Angular automatically provides service instances where needed. |
| Routing | Enables navigation between pages without reloading the application. |
| Reactive Forms | Form model defined in TypeScript with powerful validation support. |
| Template-driven Forms | Simpler form approach driven mainly by HTML templates. |
| Pipes | Transform data for display, such as dates, currency, or custom formatting. |
| Directives | Modify the behavior or appearance of DOM elements (*ngIf, *ngFor, custom directives). |
| Data Binding | Connects component data with the HTML template (one-way and two-way). |
| Lifecycle Hooks | Methods like ngOnInit, ngOnDestroy, and ngAfterViewInit that respond to component lifecycle events. |
| HTTP Client | Makes REST API calls to backend services. |
| RxJS | Handles asynchronous data using Observables and operators. |
| Guards | Protect routes based on authentication or authorization rules. |
| Interceptors | Intercept and modify HTTP requests/responses (for tokens, logging, error handling). |
| Lazy Loading | Loads feature modules only when needed to improve application performance. |
Learning Roadmap
I recommend learning in this order:
TypeScript Fundamentals
OOP Concepts in TypeScript
Angular Architecture
Components and Templates
Data Binding
Directives
Pipes
Services and Dependency Injection
Routing
Forms (Reactive Forms)
HTTP Client and REST APIs
CRUD Operations
RxJS
Authentication (JWT)
Authorization (Guards and Roles)
Interceptors
Angular Material
Lazy Loading
State Management (optional: NgRx)
Unit Testing and Best Practices
This single Employee Management System project is comprehensive enough to teach nearly all day-to-day Angular development concepts while also preparing you for Angular and Full Stack .NET interviews.
Given the breadth of your request, I would split this into a 30-day hands-on course, where each day includes:
Detailed theory (with interview explanations)
Step-by-step coding
Complete source code
Practice exercises
Common interview questions
Assignments
Real-world best practices
By the end, you'll have a production-style Angular application and a strong understanding of both TypeScript and Angular.
