Building a Microservice Architecture with TypeScript and Angular

admin English 16 February 2024

Programming

Building a Microservice Architecture with TypeScript and Angular

Introduction to Microservices

Microservices is an architectural style that structures an application as a collection of loosely coupled services. Each service is responsible for a specific function and can be developed, deployed, and scaled independently. This approach offers several benefits, including:

Scalability: Services can be scaled independently based on demand.
Flexibility: Different services can be developed using different technologies.
Maintainability: Services are smaller and focused, making them easier to understand and maintain.
Resilience: Failure in one service doesn’t necessarily affect the entire system.

Setting Up the Backend with NestJS

NestJS is a framework for building efficient, reliable, and scalable server-side applications. It is built with TypeScript and combines elements of OOP, FP, and FRP.

Installing NestJS

To get started with NestJS, you can use the following command to install the CLI:

Leveraging Nginx for Overriding default Alfresco Login Behavior

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Introduction

Nginx is a powerful web server and reverse proxy server that excels in handling various tasks, including URL rewriting and proxying. In this guide, we’ll explore advanced techniques using Nginx to rewrite URLs and proxy requests effectively to be used in conjunction with Alfresco in order to do advanced login customization to the default Alfresco login behavior.

Background

Alfresco supports various identity providers, such as LDAP (Lightweight Directory Access Protocol), Active Directory, and others. The default login behavior typically involves checking the user’s credentials (username and password) against the configured identity provider. If the credentials are valid, the user is granted access to the Alfresco repository.

The specific configuration for authentication is typically done in the Alfresco-global.properties file or through the Alfresco Share interface. Administrators can define authentication chain configurations, which specify the order in which authentication subsystems are consulted during the login process. This allows for flexibility in integrating with different identity providers.

The Problem: Alfresco ADF

Alfresco Application Development Framework (ADF) is a set of web-based components and tools provided by Alfresco for building modern, responsive, and extensible enterprise content management (ECM) applications. It is designed to work with the Alfresco Digital Business Platform, providing developers with a framework to create customized solutions that leverage the platform’s content and process management capabilities.

ADF is closely integrated with Alfresco Content Services, which is the underlying ECM platform. This integration allows developers to take advantage of Alfresco’s powerful content management capabilities.

Unfortunately the ADF libraries doesn’t allow to change the Login URL in order to extend backend login behavior. Here is where it comes in handy using nginx rewrite rules in order to use a newly created Alfresco Login Webscript which extends the standard LoginPost Webscript.

Installing and Configuring nginx

Step 1: Update Package List

sudo apt update