Compare the availability of AWS services across two specified regions

compare_regions_available_aws_services.py

"""
This script compares the availability of AWS services across two specified
regions (region1 and region2) and outputs the results. Prints the results,
showing the count and names of the services in each category (common,
region-specific, and not available).

Parameters:
- region1 (str): The first AWS region
- region2 (str): The second AWS region

Requirements:
- requests library

Usage:
- Set `region1` and `region2` to the desired regions.
- Run python3 this_script.py
"""

import json

import requests

# Set two regions for comparison
region1 = "ap-northeast-1"
region2 = "ap-northeast-3"


# Fetch the JSON data from the URL
url = "https://aws-new-features.s3.amazonaws.com/html/aws_services.json"
response = requests.get(url)

# Check if the request was successful
if response.status_code == 200:
    aws_services = response.text
else:
    print(f"Error fetching data from {url}. Status code: {response.status_code}")
    exit(1)

# Load the JSON data
data = json.loads(aws_services)


# Initialize sets to store services available in each region
set1 = set()
set2 = set()

# Iterate through the services
for service, regions in data.items():
    if region1 in regions:
        set1.add(service)
    if region2 in regions:
        set2.add(service)

# Compare services available in both regions
common_services = set1.intersection(set2)
region1_specific_services = set1.difference(set2)
region2_specific_services = set2.difference(set1)
all_services = set(data.keys())
not_available_either_region = all_services.difference(set1.union(set2))


def print_count_and_services(services: set):
    print(f"Count: {len(services)}")
    services_list = sorted(list(services))
    print(services_list)
    print("---")


print(f"Services available in both {region1} and {region2}:")
print_count_and_services(common_services)

if region1_specific_services:
    print(f"Services available only in {region1}:")
    print_count_and_services(region1_specific_services)
else:
    print(f"No services available only in {region1}")

if region2_specific_services:
    print(f"Services available only in {region2}:")
    print_count_and_services(region2_specific_services)
else:
    print(f"No services available only in {region2}")
    print("---")


print(f"Services not available in either {region1} or {region2}:")
print_count_and_services(not_available_either_region)