Introduction

Challenges in managing a large number of repositories

Overcoming Challenges with Multiple Repositories - A Deep Dive into Package Management and Workspaces

We will discuss what monorepos are and the essential criteria for monorepo implementation

What are monorepos?

An introduction to PNPM and its benefits.

Understanding and Utilizing PNPM - An efficient package manager for Node.js

We are going to set up a monorepo folder structure with PNPM workspaces.

Setting Up a Monorepo Folder Structure with PNPM Workspaces

Create our first application inside the PNPM workspace.

Creating Your First React App in a PNPM Worskpace

Getting Started

We are going create a shared library using React and TypeScript.

Building and Using Shared Repositories in React with PNPM

We are going import a ccomponent from a shared library into our main app.

Utilizing a Shared UI Library in a React Application with TypeScript and PNPM

Shared Repositories

An intro to Nx and the features it provides the developers

Harnessing the Power of Nx in Software Development

How to add Nx to the workspace and running Nx commands

Getting Started with NX in your Workspace: An Installation Guide

Mastering Project Management with Nx: Using Nx commands

An intro to Nx graph to identify dependencies

Understanding Dependency Graphs with Nx

An Insight into NX Caching: Improving Build Times and Developer Productivity

Configure caching strategies based on your project's requirements

Leveraging Nx Caching in Software Development

Caching

Make sure dependencies are built first before running an application using dependsOn field.

Managing Dependencies and Optimizing Workspaces with NX's Task Pipeline

Use advanced optimizations beyond caching for growing applications and packages within your monorepo.

Optimizing Nx Workspaces with the 'Affected' Command

Nx Task Pipeline Features and Workspace Optimization

Gain a solid understanding of what Nx plugins are, how they work, and why they are a crucial component of the Nx ecosystem.

Maximize Efficiency with NX Plugins: A Comprehensive Guide

How to use the generators to scaffold new projects

Creating Custom Generators for Project Scaffolding with Nx

Creating custom plugins and scaffolding new packages with generators

Conclusion

We have created a course on how to build monorepos using Nx which is a powerful build system that provides tools and techniques for enhancing developer productivity, optimizing CI performance, and maintaining code quality. 
Monorepos are an excellent way to reduce the complexity of mutiple codebases, reuse code and increase productivity, but most software engineers working on enterprise solutions find it confusing where to even start.

In this course we cover how to install and configure Nx to speed up development by reducing complexity by improving code organization via code sharing between different projects, ways to optimize builds with local and remote cache, increase test coverage locally and how to configure CI alogn with the tooling via its plugins.

It's taught by Sean Amarasinghe who is a Lead Engineer who has been working with Nx and PNPM integrating it into multiple monorepos.

Predictably Collaborate on and Automate Complex Apps at Scale

In this course we learn how to structure a monorepo with PNPM workspaces, install Nx and use its tooling to optimise CI performance and maintain code quality

The Art of Enterprise Monorepos with Nx and pnpm

How to structure a monorepo with PNPM workspaces, install Nx and use its tooling to optimize CI performance and maintain code quality.

Importance of managing multiple projects, libraries, and applications within a single, centralized repository to enhance productivity and code maintainability. 

By utilizing Nx, a powerful and extensible toolkit, you will learn to streamline the development workflow within monorepos.

In this article, we will explore the fascinating world of dependency graphs in Nx. Nx is a powerful tool that generates a visual representation of the relationships between various modules in a software application. This visualization is crucial for developers to comprehend the entire structure of an application, identify any circular dependencies, and optimize the build process. We will also guide you through the practical steps of incorporating a shared utility library into the frontend package and deploying the Nx dependency graph.

Let's begin by understanding the Nx dependency graph. It is a visual map of the relationships between different modules in an application. These modules can include libraries, components, services, or any other parts of the application. 

The Nx dependency graph is a powerful tool for understanding the structure of an application.

Here's how you can generate your Nx dependency graph:

pnpm add shared-utils --filter front-end --workspace

// apps/frontend/src/App.js
import { sum } from 'shared-utils';

function App() {
  const [clicked, setClicked] = useState(false);
  const [total, setTotal] = useState(0);
  ... 
}

---
title: Understanding Dependency Graphs with Nx
description: An intro to Nx graph to identify dependencies
privateVideoUrl: https://stream.mux.com/krB6JZk4Z52BWLAu00dkcMivlce00C00x7jTKAGZBwm8nA.m3u8
isPublicLesson: true
code: https://gitlab.com/fullstackio/books/newline-course-apps/sean-amarasinghe-monorepos-for-enterprise-developers-app/-/tree/main/Course%20App/module_4
---

# Understanding Dependency Graphs with Nx

## Introduction

In this article, we will explore the fascinating world of dependency graphs in Nx. Nx is a powerful tool that generates a visual representation of the relationships between various modules in a software application. This visualization is crucial for developers to comprehend the entire structure of an application, identify any circular dependencies, and optimize the build process. We will also guide you through the practical steps of incorporating a shared utility library into the frontend package and deploying the Nx dependency graph.

## The Nx Dependency Graph

Let's begin by understanding the Nx dependency graph. It is a visual map of the relationships between different modules in an application. These modules can include libraries, components, services, or any other parts of the application. 

:::info 
The Nx dependency graph is a powerful tool for understanding the structure of an application.
:::

Here's how you can generate your Nx dependency graph:

1.  Import the `shared-util` library into your frontend package.

```bash
pnpm add shared-utils --filter front-end --workspace
```

2.  After importing the package into the `/apps/frontend` library, import the `shared-util` package into your frontend application. This can be done in the `App.js` file.

```jsx
// apps/frontend/src/App.js
import { sum } from 'shared-utils';
```

3.  We created a helper function which is called **sum** previously isn `shared-utils`. Save the state of the sum in a variable called  **total**. We initialize it to 0.

Sean Amarasinghe

In this lesson we are going to look at the NX dependency graph.

NX generates a dependency graph that visualizes the relationships between

This graph helps developers to understand the structure of the application,

identifying the circular dependencies and your optimizes the build process.

Before looking at the dependency graph, let's import the shared util library

Now we imported the package into the front-end library.

Let's go to the app.js file and import the shared util package into the front-

We created a helper function which is called sum.

Now let's save the state of the sum in a total variable.

We initialize it to 0 and then let's create a handle function.

Now instead of calling set clicked inside the onClick handler, let's call

We can use this total here to find out the times that the button has been

It looks like the application is running successfully and let's test the

We have two libraries used by a front-end application and with nxgraph we can

This will open up a browser and run the nxgraph.

You can see here the front-end is connected to shared UI and shared utils.

The front-end is using the shared UI and shared util libraries.

nxgraph is a hand tool that generates a dependency graph which shows us the

and also helps us to optimize the builds and identify circular dependencies.

In this lesson we looked at how to use the dependency graph and also identify

potential problems with circular dependencies

In this module we looked at installing nx, how to run nx commands and how to