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https://github.com/Azure-Samples/contoso-real-estate

Intelligent enterprise-grade reference architecture for JavaScript, featuring OpenAI integration, Azure Developer CLI template and Playwright tests.
https://github.com/Azure-Samples/contoso-real-estate

angular architecture azd-templates azure azureopenai cloud javascript next nodejs playwright rag serverless strapi stripe

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Intelligent enterprise-grade reference architecture for JavaScript, featuring OpenAI integration, Azure Developer CLI template and Playwright tests.

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README 

        
---

page_type: sample

languages:

- azdeveloper

- javascript

- typescript

- nodejs

- bicep

products:

- azure

- azure-container-apps

- azure-container-registry

- azure-cosmos-db

- azure-database-postgresql

- azure-functions

- azure-key-vault

- azure-sdks

- azure-storage

- static-web-apps

- entra-id

- playwright

- vs-code

- azure-pipelines

urlFragment: contoso-real-estate

name: "Contoso Real Estate: JavaScript + Enterprise"

description: Intelligent enterprise-grade reference architecture for JavaScript, featuring OpenAI integration, Azure Developer CLI template and Playwright tests.

---



# Enterprise-grade Reference Architecture for JavaScript



This repository contains the reference architecture and components for building enterprise-grade modern composable frontends (or micro-frontends) and cloud-native applications. It is a collection of best practices, architecture patterns, and functional components that can be used to build and deploy modern JavaScript applications to Azure. 



> [!IMPORTANT]

> The application code is meant to serve as a reference. Please incorporate your security governance, audits and conventions before productionizing.



[![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/Azure-Samples/contoso-real-estate?devcontainer_path=.devcontainer/devcontainer.json)



### Supported Application Scenarios



The following scenarios are part of the application sample



- [AI Chatbot integration (RAG Pattern)](./chatbot-integration-scenario.md)



- [Payments integration with Stripe](./payments-service-scenario.md)



- [Real-time Notifications](./real-time-notifications-scenario.md) 



- [Portal application](./portal-scenario.md), a main portal entry point, featuring listings, favorites, user authentication and profile



- [Headless CMS and blog](./blog-scenario.md)



## Table of Contents



You can navigate through the documentation using the table of contents below:



- [Enterprise-grade Reference Architecture for JavaScript](#enterprise-grade-reference-architecture-for-javascript)

  - [Table of Contents](#table-of-contents)

  - [Architecture Diagram](#architecture-diagram)

  - [Simplified Flow Diagram](#simplified-flow-diagram)

  - [Components](#components)

    - [Frontend](#frontend)

    - [Backend](#backend)

    - [DevOps](#devops)

    - [Developer tools](#developer-tools)

  - [Development environment](#development-environment)

  - [AI chatbot integration](#ai-chatbot-integration)

  - [Usage costs](#usage-costs)

  - [Project structure](#project-structure)

  - [Deploy to Azure](#deploy-to-azure)

    - [Prerequisites](#prerequisites)

    - [Deploy to Azure](#deploy-to-azure-1)

    - [Configure CI-CD](#configure-ci-cd)

    - [Clean up resources](#clean-up-resources)

  - [Developer guidelines](#developer-guidelines)

  - [Want to help?](#want-to-help)



## Architecture Diagram





  Application architecture diagram




## Simplified Flow Diagram



```mermaid

flowchart TD

    %%



    subgraph Internet

    Portal[https://portal.contoso.com]

    Blog[https://blog.contoso.com]

    CMS[https://cms.contoso.com]

    Stripe[https://stripe.contoso.com]

    API[https://api.contoso.com]

    end



    subgraph Azure API Management

    APIM(API Gateway)

    end



    subgraph Azure Static Web Apps

    SWA_Angular([Angular])

    end



    subgraph Azure Functions

    Functions([Node.js])

    end



    subgraph Azure Container Apps

    ACA_Next([Next.js])

    ACA_Strapi([Strapi])

    ACA_Stripe([Stripe])

    end



    subgraph Database/Storage

    DB_PostresSQL[(PostgreSQL - Strapi)]

    DB_Mongo[(MongoDB - Portal)]

    Storage([Azure Blob Storage - CMS])

    end



    Portal --> SWA_Angular -- "portal.contoso.com/api/**" --> APIM -- "portal.contoso.com/api/**" --> Functions



    Blog -- "blog.contoso.com" --> ACA_Next -. "Strapi API" .-> ACA_Strapi



    CMS -- "cms.contoso.com" --> ACA_Strapi

    ACA_Strapi -- "read/write" ----> DB_PostresSQL -- "read only" --> Functions

    ACA_Strapi -- "upload" --> Storage



    API --> APIM -- "api.contoso.com" --> Functions <-- "read/write" --> DB_Mongo



    Stripe ---> APIM -- "stripe.contoso.com" --> ACA_Stripe <-. "validate payment (through APIM)" .-> Functions



    %% Portal

    linkStyle 0 stroke:pink

    linkStyle 1 stroke:pink

    linkStyle 2 stroke:pink



    %% Blog

    linkStyle 3 stroke:blue

    linkStyle 4 stroke:blue

    linkStyle 5 stroke:blue



    %% CMS

    linkStyle 5 stroke:red

    linkStyle 6 stroke:red

    linkStyle 8 stroke:red



    linkStyle 7 stroke:lime

    linkStyle 9 stroke:lime

    linkStyle 10 stroke:lime

    linkStyle 11 stroke:lime

```



## Components



### Frontend



- [Angular](https://angular.io/) - The Portal application used to view and book listings.

- [Next.js](https://nextjs.org/) - The Blog application used to view and create blog posts.

- [Playwright](https://playwright.dev/) - The end-to-end testing of the Portal application.

- [Azure Static Web Apps](https://azure.microsoft.com/services/app-service/static/) - The hosting of the Portal application.



### Backend



- [Strapi](https://strapi.io/) - The CMS application used to manage the data for the Portal and Blog applications.

- [Stripe](https://stripe.com/) - The payment processing.

- [Fastify](https://www.fastify.io/) - The API used that interfaces with the Stripe API and Portal application.

- [Azure Functions](https://azure.microsoft.com/services/functions/) - The API used to communicate with Portal application.

- [MongoDB for Azure Cosmos DB](https://azure.microsoft.com/services/cosmos-db/) - The database used to store the data for the Portal application.

- [Azure Database for PostgreSQL](https://azure.microsoft.com/services/postgresql/) - The database used to store the data for the CMS application.

- [Azure Storage](https://azure.microsoft.com/services/storage/) - The storage used to store the data for the CMS and Blog application.

- [Azure Container Apps](https://azure.microsoft.com/services/container-apps/) - The hosting of the Blog, Stripe and Strapi APIs.

- [Azure Application Insights](https://azure.microsoft.com/services/monitor/) - Monitoring and accessing logs for the applications and APIs.



In order use [API Management](https://azure.microsoft.com/products/api-management), please set the boolean flag `useAPIM` on [the main bicep file](./infra/main.bicep) to true. This will provision the API Management instance and configure the APIs to use it. Please note that this will incur additional costs and the provisioning process may take up to 40 minutes.



### DevOps



- [Azure CLI](https://learn.microsoft.com/cli/azure/install-azure-cli) - Provisioning, managing and deploying the application to Azure.

- [GitHub Actions](https://github.com/features/actions) - The CI/CD pipelines.

- [Azure Developer CLI](https://learn.microsoft.com/azure/developer/azure-developer-cli/overview) - The CI/CD pipelines.



### Developer tools



- [Visual Studio Code](https://code.visualstudio.com/) - The local IDE experience.

- [GitHub Codespaces](https://github.com/features/codespaces) - The cloud IDE experience.

- [Azure Static Web Apps CLI](https://azure.github.io/static-web-apps-cli/) - Accelerates the process of building cloud apps on Azure.



## Development environment



This project is optimized for use with [GitHub Codespaces](https://github.com/features/codespaces), a development environment hosted in the GitHub cloud. Here is how to get started:



1. Fork this repository.

1. Create a new GitHub Codespaces from your fork. This will automatically provision a new Codespaces with all the required dependencies preinstalled and configured.

1. Open the terminal and run `npm install && npm start` to start the development servers.

   _Note: Codespaces will show a series of windows on the right side of the screen while starting all servers. This is normal and expected._

1. Once all dev servers have started, the following URLs will be available:



| Application    | URL                                                      | Port |

| -------------- | -------------------------------------------------------- | ---- |

| Portal         | https://YOUR-REPO-4280.preview.app.github.dev:4280       | 4280 |

| Blog           | https://YOUR-REPO-3000.preview.app.github.dev:3000       | 3000 |

| Strapi CMS     | https://YOUR-REPO-1337.preview.app.github.dev:1337/admin | 1337 |

| Serverless API | https://YOUR-REPO-7071.preview.app.github.dev:7071/api/  | 7071 |

| Stripe API     | https://YOUR-REPO-4242.preview.app.github.dev:4242       | 4242 |



> _Note: The URLs above are just examples. The URLs will be different for your fork. The ports however will be the same._



## AI chatbot integration



The Contoso Real Estate application can be integrated with an AI support chatbot built using [Azure OpenAI](https://azure.microsoft.com/products/ai-services/openai-service).



For more details about enabling the chatbot integration, see [this section](./docs/chatbot-integration.md).



## Usage costs



Github Codespaces usage is [billed](https://docs.github.com/billing/managing-billing-for-github-codespaces/about-billing-for-github-codespaces) either to an organization or to the user creating it. There are limits to the number of concurrent codespaces you can create or run, so here are a few things to keep in mind:



- Personal accounts get a [free monthly usage quota](https://docs.github.com/billing/managing-billing-for-github-codespaces/about-billing-for-github-codespaces#monthly-included-storage-and-core-hours-for-personal-accounts) of 120 hours and 15GB storage - enough to explore this project!

- You can [lookup current usage](https://github.com/settings/billing) or [set spending limits](https://github.com/settings/billing/spending_limit) on your profile - to ensure you don't accidentally exceed your quota or budget.

- We recommend you [delete codespaces](https://docs.github.com/codespaces/developing-in-codespaces/deleting-a-codespace) you are not actively using, and [configure default retention periods](https://docs.github.com/en/codespaces/customizing-your-codespace/configuring-automatic-deletion-of-your-codespaces?tool=webui) to maximize usage of your free quota and minimize costs for paid usage.



## Project structure



The project is using `npm` workspaces. The project structure is as follows:



- `packages/` - contains all the packages

  - [`api`](packages/api) - contains the serverless Azure Functions API.

  - [`portal`](packages/portal) - contains the Angular web portal.

  - [`blog`](packages/blog) - contains the Next.js blog.

  - [`blog-cms`](packages/blog-cms) - contains the Strapi CMS.

  - [`docs`](packages/docs) - contains the Developer Guide website

  - [`stripe`](packages/stripe) - contains the Stripe webhook.

  - [`testing`](packages/testing) - contains the Playwright tests.



## Deploy to Azure



### Prerequisites



This project uses [GitHub Codespaces](https://github.com/features/codespaces) as the main development environment. The following steps assume you are using GitHub Codespaces. If you are not using GitHub Codespaces, you can open the project in a Dev Container locally following the instructions [here](docs/dev-container.md).



### Deploy to Azure



This project uses [Azure Developer CLI (`azd`)](https://aka.ms/azd) to provision infrastructure, package, and deploy the application to Azure. Running the following commands will get you started with deployment.



```bash

# Login to azd. Only required once per install.

# If the command fails, try using the --use-device-code flag

azd auth login



# Provision infrastructure and the azd development environment

azd provision



# Package the app using the environment variables in .azure/env + deploy the code on Azure

azd deploy

```



> The `--use-device-code` is used to log in by using a device code instead of a browser, this may resolve any browser issues while logging in. For more information on when & why to use flags, check [here](https://learn.microsoft.com/en-us/azure/developer/azure-developer-cli/reference#azd-auth-login)



> If you encounter issues with the Azure Developer CLI, please open an issue [here](https://github.com/Azure/azure-dev/issues/new/choose).



**Important:** It is mandatory to run these `azd` commands in this order. Provisioning first will create the `azd` development environment and outputs the `.env` file with the required environment variables. Packaging will package the application using some of the environment variables from the `.env` file.



**Deployment region:** Your deployment may fail if the region you selected is unavailable for provisioning specific resources. We recommend using `westeurope` as your target region since that has been currently validated for all services.



### Configure CI-CD



Use the following command to configure the CI-CD pipelines:



```bash

azd pipeline config --auth-type client-credentials

```



### Clean up resources



When you are done, you can delete all the Azure resources created with this template by running the following command:



```bash

azd down

```



## Developer guidelines



The project has a standalone [Developer Guide](./packages/docs/website/README.md) defined under `packages/docs` and implemented as an interactive website using the [Docusaurus](https://docusaurus.io) platform. To learn more about it, [go here](./packages/docs/website/developer-guidelines.md).



## Want to help?



Want to file a bug, contribute some code, or improve the documentation? Excellent! Read up on our guidelines for [contributing](./CONTRIBUTING.md) and then check out one of our issues in the list: [community-help](https://github.com/Azure-Samples/contoso-real-estate/issues).