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Sample Code - Micro Frontends in Action

This is the example code that goes along with the Manning book Micro Frontends in Action.

Hosted examples

You can interact with the running examples here: 🚜

Local machine


  1. Clone this git repository or download & extract the zip to your local machine.

  2. Make sure you have Node.js (v12 or newer) installed.

    $ node -v
  3. Go into the main directory and install all required dependencies.

    cd micro-frontends-in-action-code
    npm install
  4. Install Nginx on your machine. The nginx executable only has to be present - no configuration required.

    • macOS (via Homebrew): brew install nginx
    • Debian/Ubuntu: sudo apt-get install nginx
    • Windows: Binaries included in this repository. No installation required.

    Five examples require Nginx:

    • 04_routing
    • 05_ssi
    • 06_timeouts_down
    • 16_universal
    • 18_asset_registration_include

Running the code

All examples involve starting up multiple applications which are owned by different teams. There is an NPM run for each directory. You can start examples like this: npm run [name_of_example].

The following command will start example #5:

npm run 05_ssi

The script starts all applications and shows a combined log output.
NOTE: Nginx stdout do not work on Windows.

console output

It waits until the servers are ready and opens the example page in your default browser.

example running in your browser

You can stop the example by hitting [CMD] + C in your terminal.

NOTE: The code should run on all platforms. However, if you're having troubles feel free to create an issue.

Folder structure and ports

Each example has its own folder (e.g. 05_ssi). Each example folder contains a subfolder that contains the actual application (e.g. nginx, decide, inspire).

Different port numbers are used to indicate ownership. This following table shows which teams owns which application. Make sure ports 3000 to 3003 are not allocated by another process on your machine.

Port Team Responsibility
3000 - shared - infrastructure (web-server, app shell)
3001 Team Decide product page
3002 Team Inspire homepage, search, recommendations
3003 Team Checkout cart, checkout process

List of all examples

Here is a list of all run commands with a reference to the chapter they belong to.

run script name chapter
npm run 01_pages_links Pages & Links 2
npm run 02_iframe iFrames 2
npm run 03_ajax Namespaces 3
npm run 04_routing Server-side Routing 3
npm run 05_ssi Server-side Integration 4
npm run 06_timeouts_down
npm run 06_timeouts_short_delay
npm run 06_timeouts_long_delay
Timeouts & Fallbacks 4
npm run 07_podium Podium 4
npm run 08_web_components Client-side Composition 5
npm run 09_shadow_dom Style Isolation & ShadowDOM 5
npm run 10_parent_child_communication Parent-Child Communication 6
npm run 11_child_parent_communication Child-Parent Communication 6
npm run 12_fragment_fragment_communication Fragment-Fragment Communication 6
npm run 13_client_side_flat_routing Client-side Routing (Flat) 7
npm run 14_client_side_two_level_routing Client-side Routing (Two-Tiered) 7
npm run 15_single_spa Single SPA 7
npm run 16_universal Universal Rendering 8
npm run 17_asset_client_redirect Asset Client-side Redirect 10
npm run 18_asset_registration_include Asset Registration Include 10
npm run 19_shared_vendor_webpack_dll Shared Vendor Libraries via Webpack DLLPlugin 11
npm run 20_shared_vendor_rollup_absolute_imports Shared Vendor Libraries via Rollup.js and Absolute ES Module Imports 11
npm run 21_local_development Local Development 14


The Tractor Store - sample code from the book Micro Frontends in Action








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