Angular 2 – How to Configure Route Definitions – Part 1

This blog series would be used to describe different techniques which can be used to configure route definitions in Angular apps. The routing can be defined based on following three patterns:

  • Route definitions within AppModule
  • Routing defined as a separate module at app root level
  • Routing module defined within feature modules (recommended for enterprise apps)

In this blog, we will learn different aspects related with creating route definitions within AppModule. The most simple way of configuring route definitions is creating route definitions within AppModule file such as app.module.ts which is found at root level. This technique can be used for only learning purpose. When creating complex or enterprise apps, this is not the recommended way. The following is the what needs to be done to create route definitions within app.module.ts:

Import the Routing Libraries

The first step is to import the routing library such as RouterModule and Routes

import { RouterModule, Routes } from '@angular/router';

Create Route Definitions

Create route definitions such as following in app.module.ts. Make sure to include route definitions for handling invalid routes using components such as PageNotFoundComponent and, default route to be used when app launches with empty path.

const appRoutes: Routes = [
    { path: 'register', component: UserRegistrationComponent, data: {title: 'New User Registration'} },
    { path: 'login', component: LoginComponent },
    { path: 'doctors', component: DoctorListComponent, data: { title: 'Doctors Information' } },
    { path: 'index', component: HomeComponent },
    { path: '', redirectTo: '/index', pathMatch: 'full' },
    { path: '**', component: PageNotFoundComponent }
];

Configure Router Module

Lastly, configure router module with RouterModule.forRoot as part of @NgModule meta definition.

@NgModule({
    imports: [..., RouterModule.forRoot(appRoutes),],
    declarations: [ AppComponent, ...],
    providers: [ ...],
    bootstrap: [ AppComponent ]
})
export class AppModule { }

Greater details in relation with above and much more can be obtained from my book, Building web apps with Spring 5 and Angular. Grab your ebook today and get started.

Ajitesh Kumar

I have been recently working in the area of Data analytics including Data Science and Machine Learning / Deep Learning. I am also passionate about different technologies including programming languages such as Java/JEE, Javascript, Python, R, Julia, etc, and technologies such as Blockchain, mobile computing, cloud-native technologies, application security, cloud computing platforms, big data, etc. I would love to connect with you on Linkedin. Check out my latest book titled as First Principles Thinking: Building winning products using first principles thinking.

Share
Published by
Ajitesh Kumar

Recent Posts

Retrieval Augmented Generation (RAG) & LLM: Examples

Last updated: 25th Jan, 2025 Have you ever wondered how to seamlessly integrate the vast…

4 days ago

How to Setup MEAN App with LangChain.js

Hey there! As I venture into building agentic MEAN apps with LangChain.js, I wanted to…

1 week ago

Build AI Chatbots for SAAS Using LLMs, RAG, Multi-Agent Frameworks

Software-as-a-Service (SaaS) providers have long relied on traditional chatbot solutions like AWS Lex and Google…

2 weeks ago

Creating a RAG Application Using LangGraph: Example Code

Retrieval-Augmented Generation (RAG) is an innovative generative AI method that combines retrieval-based search with large…

3 weeks ago

Building a RAG Application with LangChain: Example Code

The combination of Retrieval-Augmented Generation (RAG) and powerful language models enables the development of sophisticated…

3 weeks ago

Building an OpenAI Chatbot with LangChain

Have you ever wondered how to use OpenAI APIs to create custom chatbots? With advancements…

3 weeks ago