Aws Lab Series Build and Deploy Rest Api

Post Date : 2024-01-06T08:56:51+07:00

Modified Date : 2024-01-06T08:56:51+07:00

Category: systemdesign aws-labs

Tags: aws

First of all we have figure out our requirements and materials that we have.

Overview of requirements

Overview of the API Service

Our Rest API service is written in NodeJS
Use Relational Database
There is a job queue inside the service
The service store image on disk
User can upload images via this service
User data must be encrypted

What system needs

We have a domain on godaddy and plan to use: api.domainame for api services, appname.domainname for application
Both app and api must have ssl connection

Analyze requirements and design system for long-term usage

Things to cocerns:

Networking

External

Route 53 for DNS
S3 for file storage
Prevent DDos Attack: AWS Shield for S3, AWS WAF for Layer 7
Guard network with GuardDuty

Let’s getting started

Making Route 53 the DNS service for a domain that’s in use

Reference Link : https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/migrate-dns-domain-in-use.html

Create Hosted Zone

Update the NS records to use Route 53 name servers

Current NS records on my domain( godaddy )

After change your NS records by using 4 ns records in your hosted zone in AWS Route53, please wait a few minutes and recheck your domain ns records with nslookup command

nslookup -q=ns jsguru.net

Create your services in AWS

Create a test api with Amazon API Gateway

Create your API Endpoint
Request AWS Certificate for your custom domain
Create custom domain and map with API Endpoint
Test your api with mapped domain
Create new routes for example resources
Create simple lambda function to handle

Create your RDS database service in a private VPC and connect with your database

Create your private VPC
Create your RDS Security Group
Create your RDS in your Database
Create VPC Endpoint for your RDS Service

Details

1. Create a test api with Amazon API Gateway

Create methods for root path

Create mock response template body for GET method

{
 "status: "success",
 "data": {
  "examples": [
    {"id": 1, "title": "Example 1"},
    {"id": 2, "title": "Example 2"},
    {"id": 3, "title": "Example 3"},
    {"id": 4, "title": "Example 4"},
    {"id": 5, "title": "Example 5"},
    {"id": 6, "title": "Example 6"},
    {"id": 7, "title": "Example 7"},
    {"id": 8, "title": "Example 8"},
    {"id": 9, "title": "Example 9"},
    {"id": 10, "title": "Example 10"}
  ],
   "pagination": {
     "pageNumber": 1,
     "pageSize": 10,
     "totalItems": 100
   }
 }
}