Angular State Management

Level Up Your Startups: State Management in Angular Applications

15 May 2024

Angular excels at building dynamic and engaging web applications for startups. But as your app grows, keeping track of all the data that controls its behavior can become a challenge. This is where state management is important, offering a structured approach to keeping your Angular application organized, scalable, and maintainable.

In this comprehensive guide, we’ll move into the world of state management in Angular and explore different approaches, from built-in features to utilizing powerful state management libraries. 

By the end, you’ll be able to approach the various options, understand their strengths and weaknesses, and confidently develop Angular applications with effective state management practices.

So, Let’s get started!

Why Angular State Management Matters?

significance of state management in Angular

Actually, what is state management in Angular? 

In Angular applications, state management refers to the practices and tools used to handle the data that determines the current condition or “state” of your application. This data can include things like:

  • User login information (logged in or not, user preferences)
  • Application data displayed on the screen (shopping cart contents, search results)
  • The state of UI components (whether a button is enabled or disabled)

Effective state management ensures this data is stored in a central and accessible location, allowing components throughout your application to share and update it consistently. This leads to a more predictable and maintainable codebase, especially in complex applications.

For example; Imagine you’re building a complex e-commerce application. Users browse products, add items to their carts, and travel through checkout. Each step involves managing data like product selections, cart contents, and user authentication status. Keeping track of this state within individual components can quickly become messy and error-prone.

Here’s where state management shines. It provides a centralized approach to managing application state, offering several key benefits:

  • Scalability: As your application grows, managing the state within components becomes cumbersome. State management libraries provide a structured way to handle complex state changes, ensuring your application remains maintainable.
  • Maintainability: By centralizing the state, you create a single source of truth. This makes it easier to understand how state changes affect different parts of your application and simplifies debugging.
  • Predictability: State management patterns, like Redux implemented by NgRx, enforce a predictable way of updating the state. This makes your application’s behavior more consistent and more accessible to reason about.
  • Testability: A centralized state allows for easier unit testing of components without worrying about external state dependencies.

What are the Potential Drawbacks of State Management in Angular

While state management offers significant advantages, it’s essential to consider its potential drawbacks:

  • Increased Complexity: Compared to simple component states, state management libraries introduce additional concepts and setups.
  • Learning Curve: Libraries like NgRx have a steeper learning curve, requiring developers to understand the underlying patterns.
  • Over-engineering: For smaller applications, the benefits of state management might not outweigh the additional complexity

The most important thing to regard is that state management is not one-size-fits-all. It’s crucial to evaluate the benefits and drawbacks and choose the approach that aligns with your application’s complexity and your team’s experience.

Conquering Complexity: Exploring Top 5 Angular State Management Libraries

different state management approaches in angular

As your Angular application scales, managing the state of changing data that dictates UI behavior—becomes a big concern. There are a number of Angular state management libraries available.Here, we discuss five best significant state management approaches in Angular, helping you to choose the right tool for the project.

1. Component State (Simple Applications):

This is the most basic approach, where data is stored within individual components using properties. Updating the state involves manipulating these properties through event bindings and methods.


  • Simple setup for small, isolated applications.
  • Easy understanding for beginners.


  • It becomes cumbersome and error-prone as data needs to be shared across components.
  • It isn’t easy to maintain a single source of truth for complex state updates.

Example: Imagine a “To Do” list component. Each component instance manages its list of tasks using an array stored in the component state.

2. Services and RxJS (Shared State):

Services act as central repositories for shared state across components. RxJS, a library for handling data streams, is utilized to manage asynchronous data and state changes.


  • Improved organization compared to component state.
  • It offers better handling of shared states across components.
  • RxJS enables asynchronous data updates and reactions.


  • It requires more setup and boilerplate code than the component state.
  • Manually managing complex state logic within services can become challenging.

Example: Consider an authentication service. It holds an observable representing the logged-in user information. Components across the application can subscribe to this observable to display greetings or restrict access based on user status.

3. NgRx (Redux Pattern):

NgRx, a popular state management library, implements the Redux pattern. Redux provides a centralized store for your application’s entire state. You dispatch actions (plain JavaScript objects describing state changes) to the store. Pure functions called reducers update the state based on the action type. Selectors allow components to access specific parts of the state.

Understanding NgRx for State Management in Angular

NgRx is a popular library that helps you manage your application’s state in a structured and predictable way. Here’s a breakdown of its key components:

  • Store: Think of the store as the central hub for all your application’s data. It holds the entire state as a single, immutable object.
  • Action: Actions are like messengers. They represent events that happen in your application, such as “Add Customer.” Each action describes how the state should be changed.
  • Reducer: Reducers are the brains behind state updates. They receive dispatched actions and the current state as inputs. Based on the action type, the reducer creates a completely new, immutable state object with the necessary changes and returns it to the store.
  • Selector: Components rarely need access to the entire application state. Selectors are pure functions that allow components to retrieve specific slices of data they need from the store.
  • Effects: While not used in this example application, NgRx also offers effects. Effects are a powerful tool for handling side effects, such as asynchronous operations triggered by actions. They can interact with external services (like APIs) and dispatch new actions to update the state based on the response. `By implementing these concepts, NgRx promotes a clear separation of concerns and makes your application’s state management more predictable and easier to maintain.


  • Highly structured and predictable approach for managing complex states.
  • Enforces a single source of truth and separation of concerns.
  • Improves scalability and maintainability for large applications.


  • Steeper learning curve compared to more straightforward approaches.
  • Requires setting up multiple concepts (store, actions, reducers, selectors).

Example: Imagine an e-commerce application. NgRx manages state-like product selections and cart contents in a central store. Components dispatch actions like “Add to Cart” to update the store. Selectors retrieve specific parts of the state, like “Get Cart Total,” for display in the UI.

4. NGXS (Redux-inspired Alternative)

Similar to NgRx, NGXS implements a Redux-like pattern with a focus on simplicity and developer experience. It offers a concise API and streamlined approach compared to NgRx.


  • Easier to learn and set up compared to NgRx.
  • Offers similar benefits of centralized state management.
  • Good choice for developers familiar with Redux concepts.


  • Less mature ecosystem and community support compared to NgRx.
  • It may lack some advanced features found in NgRx.

Example: Consider a music playlist application. NGXS helps maintain the state of your playlist in a centralized way, similar to NgRx, but with a more straightforward setup process.

5. Akita (State Slices):

Akita utilizes the concept of “state slices” for managing complex states. Each slice represents a specific part of your application’s state (e.g., user preferences, product inventory). You can manage these slices independently, improving modularity and maintainability.


  • Breaks down complex states into smaller, manageable units.
  • Offers built-in features like state persistence and query functions.
  • It is a good choice for applications with well-defined state domains.


  • Less popular compared to NgRx or NGXS, leading to a smaller community support pool.
  • It requires additional setup for interactions between state slices.

Example: Imagine a pizza shop app. Akita allows for managing the state of slices, such as toppings, crust choices, and drinks. Each slice can be updated independently, making it easier to manage complex food orders.

The ideal approach depends on your application’s complexity and your team’s experience. Consider the trade-offs between simplicity and structure when making your choice. This exploration equips you to select the most suitable state management approach for building robust and maintainable Angular applications.

Installing State Management in Angular Applications: A Step-by-Step Guide

 While the specific steps might differ slightly depending on the chosen library, here’s a general guide on installing state management in Angular applications: 

1. Choosing a Library:

The first step is to select a state management library that aligns with your project’s needs and your team’s preferences. Here are some popular options:

  • NgRx (Redux Pattern): A structured and predictable approach that is suitable for complex applications.
  • NGXS (Similar to NgRx): Simpler and more accessible to learn a variation of Redux.
  • Akita (State Slices): Manages state in independent slices, which is suitable for well-defined state domains.
  • MobX (Reactive Programming): Dynamic state updates are ideal for applications with reactive data flows.

This guide will focus on NgRx as an example. Still, the general installation steps can be adapted for other libraries as well.

2. Project Setup:

Ensure you have an existing Angular project created using the Angular CLI.

3. Installing NgRx Packages:

Open your terminal and navigate to your project directory. Use npm or yarn to install the required NgRx packages:

npm install @ngrx/store @ngrx/effects

4. Importing NgRx into your App Module:

Open your app.module.ts file and import the necessary NgRx modules:

import { BrowserModule } from ‘@angular/platform-browser’;

import { NgModule } from ‘@angular/core’;

// Other imports

import { StoreModule } from ‘@ngrx/store’;

import { EffectsModule } from ‘@ngrx/effects’;

import { AppComponent } from ‘./app.component’;


  declarations: [AppComponent],

  imports: [


    // Other imports

    StoreModule.forRoot({ /* your reducers here */ }),



  providers: [],

  bootstrap: [AppComponent]


export class AppModule { }

5. Defining State Structure (Optional):

In a separate file (e.g:- app.state.ts), create an interface or class to define the structure of your application state. This represents the data you want to manage centrally within the NgRx store.

6. Creating Reducers:

Reducers are pure functions that handle state updates based on dispatched actions. Create reducer functions for each action type in your application. These functions will receive the current state and the action and return the new state based on the action’s payload. You can create a separate folder (reducers) to organize your reducer functions.

7. Setting Up Effects (Optional):

NgRx Effects are used to handle side effects, such as asynchronous operations triggered by actions. If your application requires effects, create effects classes to manage these operations.

8. Implementing Selectors:

Selectors are functions that allow components to access specific parts of the state in the store. This ensures that components only retrieve the data they need, promoting better modularity. Create selector functions to retrieve particular parts of the state from the store.

Additional Considerations:

  • Refer to the official NgRx documentation ( for in-depth explanations and code examples.
  • Explore resources like tutorials and community forums for further guidance on implementing NgRx in your Angular applications.

This is a simplified installation process. As you go deeper into state management and your application’s complexity grows, you’ll see more advanced concepts within the chosen library.

Why Nintriva is the Right Choice for Angular Development?

homepage of Nintriva

Nintriva allows businesses and startups to build robust and scalable Angular applications by managing the power of state management. Their expert developers utilize advanced techniques like NgRx and other state management libraries to ensure your application’s data remains organized and predictable, even as your user base grows. 

This translates to a smoother user experience, easier maintenance for your development team, and a foundation for future growth. By partnering with Nintriva, you can focus on your core business activities. At the same time, they handle the complexities of state management in Angular applications.

  • Expertise in Angular and State Management: Nintriva’s experience with Angular and state management libraries like NgRx ensures they can build high-performing and scalable applications. They understand the complexities of managing the state and can choose the right approach for your specific project.
  • Efficiency and Speed: By boosting their experience and pre-existing knowledge of state management best practices, Nintriva can likely develop your application faster and more efficiently compared to an in-house team that might need to learn these concepts from scratch.
  • Focus on Your Core Business: Outsourcing development to Nintriva allows your startup to focus its resources on core business activities like marketing and product development. You can free up internal talent to concentrate on areas where your expertise lies.
  • Reduced Risk: Partnering with an experienced firm like Nintriva can mitigate the risk of encountering unforeseen development challenges related to state management. Their experience can help ensure your project stays on track and avoids potential pitfalls.
  • Proven Track Record: If Nintriva has a portfolio showcasing successful Angular applications built with state management, it reglects its competence.
  • Focus on Startups: If Nintriva holds specifically to startups, they might have a tailored approach suitable for your company’s needs and budget.
  • Communication and Transparency: Clear communication and transparency throughout the development process are crucial for any project. Investigate Nintriva’s client communication practices to ensure a smooth working relationship.

By considering these factors, you can determine if a firm like Nintriva is a good fit for developing your startup’s Angular application using state management. It’s important to compare multiple firms, evaluate their expertise, and ensure clear communication throughout the project.

Connect with Nintriva for Your App Requirements

You can easily connect Nintriva’s help for any angular project structure best practices. Nintriva is committed to delivering end-to-end Angular solutions. From ideation to deployment, their approach is structured to ensure that your business goals directly influence the technical choices made. 

Software’s Build Using Angular by Nintriva

They specialize in creating scalable and secure Angular applications that provide a seamless experience across all devices.  Let’s check the major projects they are working on Angular.

  • BIZ Boon: BizBoon connects Indian organizations and individuals entering or established in the US and Canada with local firms and institutions. 
  • Column Technologies: Addressing Human Resource requests and inquiries is critical to an organization’s overall morale and productivity, and it is important to understand that they must be addressed promptly.
  • eDoctorBook: It’s an online platform enabling seamless and effortless interaction between patients and doctors.
prompting readers to contact with Nintriva


State management in Angular plays a critical role in building robust and maintainable applications, especially as your project grows in complexity. By implementing structured approaches like those offered by NgRx and understanding the benefits of scalability, maintainability, predictability, and testability, you gain control over your application’s state.

If you’re a startup building a complex Angular application, consider partnering with a firm like Nintriva. Their expertise in state management and Angular development can ensure your application is built for scalability and success. 

Contact Nintriva today for a free consultation!

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