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PersonalBlog

I have repalce some URL, username, password or key in the source file, If your want to run the code, please replace those code with yours.

demo

http://censihan.com

This Document will cover three topic

  1. Severless Framework basic setting
  2. react basic setting
  3. MongoDB altas basic operation

Severless Framework Instruction

Install Serverless globally (npm required).

npm install -g serverless

Create IAM user.

AWS - IAM

  • Detail -> Access type: Programmaic access
  • Permissions -> Attach existing policies directly: AdministratorAccess
  • Create user
  • Download csv to save the credential file (Access key ID & Secret access key)

Setup Serverless

serverless config credentials --provider aws --key <Access key ID> --secret <Secret access key> --profile <IAM name>

New template

serverless create --template aws-python3 --path myService

Serverless Initial Hello World function (some file need to update like below)

  • change dir
cd myService
  • serverless.yml
provider:
  name: aws
  runtime: python3.6
  region: ap-southeast-2 # Sydney
  profile: <IAM-user name>

functions:
  hello:
  handler: handler.hello
  • handler.py
import json

def hello(event, context):
    print("Hello World")
    return "Hello World"

Deploy HelloWorld Serverless function

sls deploy -v

Test in the command line

sls invoke -f hello -l

return:

"Hello World"
--------------------------------------------------------------------
START RequestId: ******************* Version: $LATEST
Hello World
END RequestId: *******************
REPORT RequestId: ***************	Duration: 0.30 ms	Billed Duration: 100 ms 	Memory Size: 1024 MB	Max Memory Used: 23 MB

Quick update existing functions

sls deploy function -f hello

Fetch funtion Log

sls logs -f hello -t

Destroy the service

sls remove

!!! remove everthing !!!

The severless Command Line functionalities can be also achieved in the AWS console

Add python package requirements

install the plugin

npm install --save serverless-python-requirements

and add the plugin to your serverless.yml

plugins:
  - serverless-python-requirements

Don't forget to make sure you have a requirements.txt file.

That's it, once sls deploy is called the plugin will package the dependencies with the code.

React basic set up

I'm lazy, Highly recommand this video https://www.youtube.com/watch?v=uextYhQGP6k&t=6s

MongoDB altas basic operation

If you want to try MongoDB Altas, here is the Documentation https://docs.mongodb.com/

driver

MongoDB provides multi language driver https://docs.mongodb.com/ecosystem/drivers/

code demo

try the python file under /db, give you some basic function to play with your data.