2023年11月15日星期三

Building a Flexible RESTful API with MongoDB, Flask, and AWS

Building a robust and flexible RESTful API is crucial for many modern web applications. In this tutorial, we will explore how to use MongoDB as a database, Flask as a web framework, and AWS for deployment to create a powerful and scalable API.

Prerequisites

Before we get started, make sure you have the following tools and accounts:

Python installed on your machine
AWS account for deployment
MongoDB Atlas account for a cloud-based MongoDB database

Setting up MongoDB

First, create a MongoDB Atlas cluster and obtain the connection string. Update your Flask application configuration with this connection string to enable communication with MongoDB.


        # Example MongoDB connection string
        MONGO_URI = "mongodb+srv://:@cluster0.mongodb.net/?retryWrites=true&w=majority"

Creating a Flask Application

Now, let's create a Flask application with the necessary routes for your API. Use the Flask-PyMongo extension to interact with MongoDB easily.


        from flask import Flask, jsonify, request
        from flask_pymongo import PyMongo

        app = Flask(__name__)
        app.config["MONGO_URI"] = "your_mongo_uri_here"
        mongo = PyMongo(app)

Deploying to AWS

Once your Flask application is ready, it's time to deploy it to AWS. You can use services like AWS Elastic Beanstalk or AWS Lambda for serverless deployment.

Conclusion

Congratulations! You've successfully built a flexible RESTful API using MongoDB, Flask, and AWS. This combination offers scalability, flexibility, and ease of development for your web applications.

How to scale MongoDB using Terraform [Amazon Web Service] ECS and EKS

Deploy MongoDB on AWS ECS with Terraform

Follow these steps to deploy MongoDB on AWS ECS:

Create an ECS Cluster:

            
provider "aws" {
  region = "your-aws-region"
}

resource "aws_ecs_cluster" "mongodb_cluster" {
  name = "mongodb-cluster"
}

Create a Task Definition:

            
resource "aws_ecs_task_definition" "mongodb_task" {
  family                   = "mongodb"
  network_mode             = "bridge"
  requires_compatibilities = ["EC2"]
  cpu                      = "256"
  memory                   = "512"

  container_definitions = jsonencode([{
    name  = "mongodb-container"
    image = "your-mongodb-docker-image"
    portMappings = [{
      containerPort = 27017,
      hostPort      = 27017,
    }]
  }])
}

Create an ECS Service:

            
resource "aws_ecs_service" "mongodb_service" {
  name            = "mongodb-service"
  cluster         = aws_ecs_cluster.mongodb_cluster.id
  task_definition = aws_ecs_task_definition.mongodb_task.arn
  launch_type     = "EC2"
  desired_count   = 3  # Adjust this based on your scaling requirements

  network_configuration {
    subnets = aws_subnet.private.*.id
    security_groups = [aws_security_group.mongodb.id]
  }
}

Make sure to replace placeholder values such as "your-aws-region" and "your-mongodb-docker-image" with your actual values.

2019年11月8日星期五

陰霾

當沒有原因快樂時不要太快樂

因為明知不快會很快到來。

只好騙自己這是場遊戲，但遊戲會痛嗎？

那場敗筆足夠一生來記住，放開點？可以放嗎？

如何放？破爛的水杯可光潔如新？

爛的假的謊話不要由自己說給自己聽吧？

路一樣要走下去，我已正在走，害怕任何一刻壞的事會發生。

騙術不高就只好惶恐。

Well, put it this way, I feel very low in myself.

I can't see much in the future, and I feel that any second something terrible is going to happen to me.

[slumps into spaghetti]

專業何事

服務行業又好咩行業都好有d真係要大讚

例如有一種廚師煮左廿幾三十年但都仲會努力進步學新菜式有一種一年比一年

差連基本衛生都無日日浪費食材

一個人專唔專業唔係你話就得係好客觀

碗麵有老鼠腳你個胃都好客觀

老鼠腳都係蛋白質

係咪聽日再番來食囉鬼叫得你一間餐廳咩！

聽日個廚師又加料呢次又唔知想點

好又一餐唔好又一餐

保侍正面

2017年8月19日星期六

New posting schedule

From now on, this channel will become world issue blog.
Please stay tune for more articles.
And be sure to add this website to your bookmark, if you are interested in the following topics.
- World Issues
- Moral and Humanities
- General Philosophy
- Existentialism
- Aestheticism
- Determinism
- Chaos theory
- Digital physics
- Fatalism
- Free Will
- Voluntarism

Overpopulated world and moral problem

Raised questions

-In food supply perspective, is plants fertilization and altered genes animal moral?

-Are human become more and more greedy because the world is short of natural resources?

-Can humanity sustain in such a population?

-Will overpopulation cause other moral problems?

-Is using vaccine to extend lifetime moral?

-Overlook the situation in India, the cost of a human life are way lower than expected. It also cause many tragic like amateur female assault, short in food and water, polluted rivers, lack of respect as a human being, the quality of life is unbearable.

In this week, let's rethink of the questions above. Write 1500 words about it and send it to me before next Friday.