Meetings

Meetings is an application developed by Group-3 during the course Advanced Technologies in Software Construction, as was taught during first semester of 2023.

Table of Contents

• Meetings
  • Table of Contents
  • Requirements
  • Team
  • Continuous Integration
  • Development Environment
    • Back-End
    • API Documentation
    • Front-End
  • Running Local
  • Context
  • Planned Architecture
  • License

Requirements

Available on docs

Team

Name	File	e-Mail
Alvarez, Leandro	146.887-0	[email protected]
Sanchez, Tomas	166.043-3	[email protected]
Torregrosa, Florencia	163.519-0	[email protected]
Olmedo Paco, Jhon Daniel	152.222-0	[email protected]
Yogui Arakaki, Matias Ezequiel	167.264-2	[email protected]
Grosclaude, Julian	171.656-6	[email protected]

Continuous Integration

This project uses GitHub Actions.

Read more about in the documentation site

Development Environment

It is recommended to use IntelliJ.

1. Clone the repository

Via HTTPS

git clone https://github.com/tomasanchez/grupo-3-tacs.git

or SSH

git clone [email protected]:tomasanchez/grupo-3-tacs.git

2. Install Docker

Read the official website about Docker

Back-End

For more information about technologies used, how to set up development environment, running local, read the README file on auth module, for the scheduler service, README file on scheduler, and README file on api-gateway package.

API Documentation

We are using OpenAPI to document our API. You will find all available endpoints, request and response bodies, along with the status codes that they produce in there.

Front-End

See README file on web package.

Quick Start

1. Install Loki Docker Driver

   docker plugin install grafana/loki-docker-driver:latest --alias loki --grant-all-permissions

2. Build application image and start all services with docker-compose

   docker-compose build
   docker-compose up -d

3. Open the Meetings Web Service http://localhost:5173 in your browser.

4. Test the api from API Gateway Swagger UI http://localhost/docs.

5. Check predefined dashboard FastAPI Observability on Grafana http://localhost:3000/

Context

A customer should be able to schedule events, creating, or joining them. Administrators should be able to see different statistics about the events.

At a high level, we should have different systems, with single responsibilities. One system should be responsible for managing the workflows of the events, another schedules events, and the last one for validating users' credentials.

Planned Architecture

We are planning to have a microservices' architecture. We take into account:

1. Scalability
   • Each service can be scaled independently, allowing for better resource utilization and more efficient scaling.
2. Resilience:
   • If a single component fails, the rest of the application can still function.
3. Technology diversity:
   • Each service can be developed using a different technology stack, allowing for better specialization and more efficient development.
4. Deployment:
   • Each service can be deployed independently, allowing for more efficient deployment and better resource utilization, as well as faster rollback in case of failure, easier to deploy new features.

Overall, a microservices architecture provides more flexibility, scalability, and resilience than a monolithic architecture. While it may require more initial setup and development, it can ultimately make the application easier to maintain and more efficient.

Users will be able to interact with the application through the Web module. This module will be responsible for interacting with the API Gateway module, which will be responsible for routing the requests to the corresponding service. However, this is not the only interface, there is a Bot service which allows user interaction via Telegram.

The main idea is to have an API Gateway that will serve as an entry point for the communication between the microservices. It will be responsible for routing the requests to the corresponding service, making the corresponding validations.

One of these validations will be to limit the number of requests that a user can make in a given time. This will be done using a Rate Limiter as a middleware. For that purpose, we will use Redis, It can be interchanged with a Redis Cluster so that we can have a distributed cache, in case more than one instance of the API Gateway is running.

Auth module will be responsible for validating users.

SchedulerApplication module will be responsible for managing the workflows of the events.

Observability

Observe the FastAPI application with three pillars of observability on Grafana:

1. Traces with Tempo and OpenTelemetry Python SDK
2. Metrics with Prometheus and Prometheus Python Client
3. Logs with Loki

License

All material is provided under an MIT License unless otherwise specified. MIT License: https://mit-license.org/ or see the LICENSE file.