API-Gateway(A.R)

Requirements

• RabbitMq
• Redis
• Postgres

Sample of docker-compose

version: '3'
services:
    postgres:
        restart: always
        image: postgres
        container_name: postgres
        network_mode: host
        volumes:
          - ./postgres-data:/var/lib/postgresql/data
        environment:
          - POSTGRES_USER=postgres
          - POSTGRES_PASSWORD=postgres
          - POSTGRES_DB=postgres
    rabbitmq:
        restart: always
        image: rabbitmq
        container_name: rabbitmq
        network_mode: host
        healthcheck:
            test: ["CMD", "rabbitmqctl", "status"]
            interval: 5s
            timeout: 10s
            retries: 3
    redis:
        restart: always
        command: redis-server --appendonly yes --requirepass "SBFo0'rR9LpqY5%GZiZp"
        image: redis
        container_name: redis
        network_mode: host
    api:
        build: .
        depends_on:
          - postgres
          - rabbitmq
          - redis
        env_file:
          - ./.env
        restart: on-failure
        network_mode: host
        container_name: api

Run commands after the first deployment:

‍‍‍‍‍‍bash npm run db:init npm run db:migrate npm run db:run:seed ‍‍‍

Get-start with Docker

Copy of repo:

git clone https://armanriazi.github.io/js-gateway/avanegar/avanegar-back.git

Requirements

Instamm pm2

 npm install pm2@latest -g

Install Redis & Postgres

version: '3'
services:
    postgres:
        restart: always
        image: postgres
        container_name: postgres
        volumes:
          - ./postgres-data:/var/lib/postgresql/data
          - /home/Projects/recommenderengine-back/assets/uploads:/home/Projects/
        environment:
          - POSTGRES_USER=
          - POSTGRES_PASSWORD=
          - POSTGRES_DB=
        network_mode: host
    redis:
        restart: always
        image: redis
        container_name: redis
        ports:
            - 6379:6379
        network_mode: host
        deploy:
          resources:
            limits:
              memory: 1G

Copy of file sample env to a new file .env

Instal packages

npm install

Start to develop code

npm run db:init
npm run db:migrate
npm run db:run:seed
npm run dev

When changes occured

npm run lint:fix

Production stage

npm run db:init
npm run db:migrate
npm run db:run:seed
npm run start

Test stage

npm run db:init
npm run db:migrate
npm run db:run:seed
npm run test or npm run test:watch

Others commands

Create a new migrate:

npm run db:migrate:generate

Rest mode:

npm run db:migrate:undo

Create seeder data

npm run db:create:seed

Revert to the initiated data

npm run db:undo:seed

Add app.py

import requests
import os
from pathlib import Path
def get_file(data):
    try:
        url = "http://{FILE_STORAGE_IP}/download/{filePath}".format(
                FILE_STORAGE_IP=os.environ.get('FILE_STORAGE_IP'), filePath=data["filePath"])
        newFilePath = "assets/uploads/"+data["filePath"].split("/")[-1]
        response = requests.get(url)
        if response.status_code == 200:
            Path("./assets/uploads").mkdir(parents=True, exist_ok=True)
            with open(newFilePath , "wb") as file:
                file.write(response.content)
            data["filePath"] = newFilePath
            return data
        else:
            raise Exception("download failed")
    except Exception as error:
        raise error
data = get_file(data)

Adding storage url to the env

FILE_STORAGE_IP='192.168.33.72:8090'