Kong API Gateway Demo

This demo project demonstrates the usage of Kong API Gateway with multiple microservices.

The project contains six services:

• Postgres (Kong): Database used by Kong in DB mode.
• Kong: API Gateway managing requests to the microservices.
• Reports Service: FastAPI-based microservice for reporting.
• Results Service: FastAPI-based microservice for results and requires auth
• Accounts Service: Django-based microservice for user registration and JWT management.
• Postgres (Accounts): Database used by the Accounts service

Architecture

Prerequisites

• Docker
• Docker Compose
• Kong Deck CLI

Install Deck

brew tap kong/deck
brew install deck

Project Structure

• config/: Kong configuration files.
• reports/: FastAPI-based report microservice.
• results/: FastAPI-based result microservice.
• accounts_service/: Django-based accounts service.

Docker Setup

Each project contains its own Dockerfile for building the respective service containers. The project also contains a Docker Compose file for orchestrating the services.

Setup

To use this demo, follow these steps:

Start Kong in DB mode with PostgreSQL:

make kong-postgres

Import the configurations:

make kong-import

How to use?

To access Kong admin

Go to http://localhost:8002/

To Register user

curl -X POST -H "Content-Type: application/json" -d '{"email":"[email protected]", "password":"mysecretpassword"}' http://localhost:8000/api/auth/users/

To login / Get token

curl -X POST -H "Content-Type: application/json" -d '{"email":"[email protected]", "password":"mysecretpassword"}' http://localhost:8000/api/auth/jwt/create/

Make a get request to result service which requires auth

curl -H "Authorization: Bearer <your-token-goes-here>" http://localhost:8000/results/

Make a get request to report service which doesn't requires auth

curl -X GET http://localhost:8000/reports/

Kong Features

• JWT
• Proxy caching
• Request transformer
• Response transformer
• Request log
• Cors
• Ip restriction
• Rate limiting
• Request size limiting
• Lambda functions
• Log to file/http/Tcp
• Deck CLI