{"id":707,"date":"2023-12-30T23:31:50","date_gmt":"2023-12-30T16:31:50","guid":{"rendered":"https:\/\/thoaicoder.com\/?p=707"},"modified":"2024-01-07T00:33:00","modified_gmt":"2024-01-06T17:33:00","slug":"managing-multiple-angular-application-with-nx-monorepo","status":"publish","type":"post","link":"https:\/\/thoaicoder.com\/index.php\/2023\/12\/30\/managing-multiple-angular-application-with-nx-monorepo\/","title":{"rendered":"Managing multiple Angular application with Nx Monorepo"},"content":{"rendered":"\n

1. Introduction<\/h1>\n\n\n\n

Managing multiple Angular applications and libraries across disparate repositories in modern software development environments leads to significant code consistency, reusability, and maintenance challenges. The absence of a centralized structure results in duplicated efforts, divergent codebases, inconsistent tooling, and hindered team collaboration. <\/p>\n\n\n\n

Let’s imagine we build an e-commerce platform that contains two Angular web apps <\/strong>used by internal staff and customers. The staff app and the customer app contain many similar UI components such as the product info below, which is used on the staff app – product management screen and the customer app – product detail screen. We need an approach to reuse the product info screen and the other common UI components.<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

Consequently, there arises a critical need for an monorepo solution<\/strong> that consolidates diverse projects, fosters code sharing, enforces uniform development practices, and simplifies maintenance, thereby addressing the complexities associated with fragmented repositories and promoting streamlined, scalable, and collaborative software development processes.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Popular tools like Nx and Angular CLI support managing monorepo, providing commands and tooling to create, build, test, and manage multiple Angular applications and libraries within a single codebase. We will use Nx to create a sample monorepo project on this topic.<\/p>\n\n\n\n

2. Nx<\/h1>\n\n\n\n

NX <\/a>is a powerful set of extensible dev tools built around monorepos, primarily used with frameworks like Angular, React, and Node.js. It’s developed by Nrwl (pronounced “narl”), which focuses on simplifying enterprise development workflows.<\/p>\n\n\n\n

Key components and features of NX include:<\/p>\n\n\n\n

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  1. Monorepo Structure:<\/strong> NX helps structure projects in a monorepository, allowing multiple applications and libraries to coexist within the same codebase. This promotes code sharing, easy dependency management, and centralized configuration.<\/li>\n\n\n\n
  2. Powerful CLI:<\/strong> It provides a command-line interface (CLI) that extends the capabilities of Angular CLI or other framework CLIs. This includes commands for generating code, running tests, serving applications, and managing the monorepo structure.<\/li>\n\n\n\n
  3. Code Generation:<\/strong> NX offers advanced code generation tools that assist in creating components, modules, services, and more. It integrates with the framework’s CLI to enhance and automate code scaffolding.<\/li>\n\n\n\n
  4. Dependency Graph:<\/strong> NX includes a dependency graph that visualizes relationships between different projects, making it easier to understand and manage dependencies among applications and libraries.<\/li>\n\n\n\n
  5. Built-in Architectural Principles:<\/strong> It encourages best practices like the separation of concerns, enforcing consistent folder structures, and providing guidelines for scalable and maintainable codebases.<\/li>\n\n\n\n
  6. Extensibility:<\/strong> NX is highly extensible, allowing developers to create custom generators, plugins, and configurations to suit specific project requirements.<\/li>\n\n\n\n
  7. DevOps Integration:<\/strong> It integrates seamlessly with various CI\/CD pipelines and DevOps workflows, facilitating automated testing, building, and deployment processes for monorepo-based projects.<\/li>\n<\/ol>\n\n\n\n

    3. Sample project<\/h1>\n\n\n\n

    We will create a sample project to implement the example mentioned above about an e-commerce platform with the staff app and the customer app using Nx monorepo.<\/p>\n\n\n\n

    3.1. Create workspace and apps<\/h2>\n\n\n\n
    npx create-nx-workspace<\/code><\/pre>\n\n\n\n
    You will be asked to specify some parameters to create the workspace as below. With the below parameters, we will create a monorepo project with a staff-app<\/strong> application.<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    It will take some minutes waiting for NX to initiate the workspace. After that, we can access the workplace and create the customer-app<\/strong>.<\/p>\n\n\n\n
    cd nx-angular-mono-repo\nnpx nx g @nx\/angular:app customer-app --directory=apps\/customer-app<\/code><\/pre>\n\n\n\n
    The project structure will be as below.<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    3.2. Create product library<\/h2>\n\n\n\n
    npx nx g @nx\/angular:library product --directory=libs\/product --standalone<\/code><\/pre>\n\n\n\n
    The product component<\/strong> will be created under libs\/product <\/strong>directory including:<\/p>\n\n\n\n