Step by Step Guide to Building an App Store Connect API Integration in Python

Hey there, fellow developer! Ready to dive into the world of App Store Connect API integration? Let's roll up our sleeves and get coding!

Introduction

The App Store Connect API is a powerful tool that lets you automate tasks and retrieve data from your App Store Connect account. Whether you're looking to streamline your workflow or build some cool automation, this guide will walk you through the process of integrating the API into your Python projects.

Prerequisites

Before we jump in, make sure you've got:

• Python 3.7+ installed
• pip for installing packages
• An App Store Connect account with API access
• Your API key (keep it secret, keep it safe!)

You'll also need to install a few libraries:

pip install jwt requests

Authentication

First things first, let's get you authenticated:

import jwt
import time

def generate_token(key_id, issuer_id, private_key):
    timestamp = int(time.time())
    payload = {
        'iss': issuer_id,
        'exp': timestamp + 1200,
        'aud': 'appstoreconnect-v1'
    }
    return jwt.encode(payload, private_key, algorithm='ES256', headers={'kid': key_id})

# Use your actual values here
token = generate_token('YOUR_KEY_ID', 'YOUR_ISSUER_ID', 'YOUR_PRIVATE_KEY')

Basic API Requests

Now that we're authenticated, let's make some requests:

import requests

base_url = 'https://api.appstoreconnect.apple.com/v1'
headers = {'Authorization': f'Bearer {token}'}

def get_apps():
    response = requests.get(f'{base_url}/apps', headers=headers)
    return response.json()

apps = get_apps()

Common Use Cases

Fetching App Information

def get_app_details(app_id):
    response = requests.get(f'{base_url}/apps/{app_id}', headers=headers)
    return response.json()

app_details = get_app_details('YOUR_APP_ID')

Retrieving Sales Reports

def get_sales_report(vendor_number, report_date):
    params = {
        'filter[vendorNumber]': vendor_number,
        'filter[reportDate]': report_date,
        'filter[reportType]': 'SALES',
        'filter[reportSubType]': 'SUMMARY'
    }
    response = requests.get(f'{base_url}/salesReports', headers=headers, params=params)
    return response.json()

sales_report = get_sales_report('YOUR_VENDOR_NUMBER', '2023-05-01')

Error Handling and Best Practices

Always handle those pesky errors:

def make_api_request(url, params=None):
    try:
        response = requests.get(url, headers=headers, params=params)
        response.raise_for_status()
        return response.json()
    except requests.exceptions.RequestException as e:
        print(f"API request failed: {e}")
        return None

And don't forget about rate limits! Implement some basic retries:

import time

def retry_request(url, max_retries=3):
    for attempt in range(max_retries):
        response = make_api_request(url)
        if response:
            return response
        time.sleep(2 ** attempt)  # Exponential backoff
    return None

Advanced Topics

Want to speed things up? Try async requests:

import asyncio
import aiohttp

async def fetch_app_details(session, app_id):
    url = f'{base_url}/apps/{app_id}'
    async with session.get(url, headers=headers) as response:
        return await response.json()

async def fetch_multiple_apps(app_ids):
    async with aiohttp.ClientSession() as session:
        tasks = [fetch_app_details(session, app_id) for app_id in app_ids]
        return await asyncio.gather(*tasks)

# Usage
app_ids = ['ID1', 'ID2', 'ID3']
results = asyncio.run(fetch_multiple_apps(app_ids))

Testing and Debugging

Always test your code! Here's a simple unit test to get you started:

import unittest
from unittest.mock import patch

class TestAppStoreConnectAPI(unittest.TestCase):
    @patch('requests.get')
    def test_get_apps(self, mock_get):
        mock_get.return_value.json.return_value = {'data': [{'id': '1', 'type': 'apps'}]}
        apps = get_apps()
        self.assertEqual(len(apps['data']), 1)
        self.assertEqual(apps['data'][0]['id'], '1')

if __name__ == '__main__':
    unittest.main()

Conclusion

And there you have it! You're now equipped to integrate the App Store Connect API into your Python projects. Remember, this is just the tip of the iceberg. There's so much more you can do with this API, so don't be afraid to explore and experiment.

Happy coding, and may your apps always be at the top of the charts! 🚀📱

Code Repository

For a complete working example, check out our GitHub repository. Feel free to fork, star, and contribute!