Step by Step Guide to Building an Adobe Sign API Integration in Python

Introduction

Hey there, fellow developer! Ready to dive into the world of digital signatures? You're in the right place. We're about to embark on a journey to integrate the Adobe Sign API into your Python project. This powerful tool will let you automate document signing processes, making life easier for you and your users. Let's get started!

Prerequisites

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

• A Python environment set up (3.7+ recommended)
• An Adobe Sign account with API credentials

Got those? Great! Let's move on.

Setting up the project

First things first, let's get our project structure in order:

mkdir adobe-sign-integration
cd adobe-sign-integration
python -m venv venv
source venv/bin/activate  # On Windows, use `venv\Scripts\activate`
pip install requests

We're using requests to handle our HTTP calls. Simple and effective!

Authentication

Alright, time to get our hands dirty with some code. Here's how we'll handle authentication:

import requests

def get_access_token(client_id, client_secret, refresh_token):
    url = "https://api.adobesign.com/oauth/token"
    payload = {
        "grant_type": "refresh_token",
        "client_id": client_id,
        "client_secret": client_secret,
        "refresh_token": refresh_token
    }
    response = requests.post(url, data=payload)
    return response.json()["access_token"]

# Use it like this:
access_token = get_access_token(YOUR_CLIENT_ID, YOUR_CLIENT_SECRET, YOUR_REFRESH_TOKEN)

Pro tip: Store your credentials securely, never in your code!

Basic API Operations

Now that we're authenticated, let's create and send an agreement:

def create_agreement(access_token, agreement_info):
    url = "https://api.adobesign.com/api/rest/v6/agreements"
    headers = {
        "Authorization": f"Bearer {access_token}",
        "Content-Type": "application/json"
    }
    response = requests.post(url, json=agreement_info, headers=headers)
    return response.json()

# Example usage:
agreement_info = {
    "fileInfos": [{"transientDocumentId": "your_document_id"}],
    "name": "Contract for Review",
    "participantSetsInfo": [
        {
            "memberInfos": [{"email": "[email protected]"}],
            "order": 1,
            "role": "SIGNER"
        }
    ],
    "signatureType": "ESIGN",
    "state": "IN_PROCESS"
}

agreement = create_agreement(access_token, agreement_info)
print(f"Agreement created with ID: {agreement['id']}")

Advanced Features

Want to know when your agreement is signed? Let's set up a webhook:

def create_webhook(access_token, webhook_info):
    url = "https://api.adobesign.com/api/rest/v6/webhooks"
    headers = {
        "Authorization": f"Bearer {access_token}",
        "Content-Type": "application/json"
    }
    response = requests.post(url, json=webhook_info, headers=headers)
    return response.json()

# Example usage:
webhook_info = {
    "name": "Agreement Status Updates",
    "scope": "ACCOUNT",
    "state": "ACTIVE",
    "webhookSubscriptionEvents": ["AGREEMENT_ALL"],
    "webhookUrlInfo": {
        "url": "https://your-webhook-url.com/adobe-sign-events"
    }
}

webhook = create_webhook(access_token, webhook_info)
print(f"Webhook created with ID: {webhook['id']}")

Error Handling and Best Practices

Always expect the unexpected! Here's a simple retry decorator:

import time
from functools import wraps

def retry_with_backoff(retries=3, backoff_in_seconds=1):
    def decorator(func):
        @wraps(func)
        def wrapper(*args, **kwargs):
            x = 0
            while True:
                try:
                    return func(*args, **kwargs)
                except requests.exceptions.RequestException as e:
                    if x == retries:
                        raise
                    sleep = backoff_in_seconds * 2 ** x + random.uniform(0, 1)
                    time.sleep(sleep)
                    x += 1
        return wrapper
    return decorator

@retry_with_backoff()
def make_api_call(url, headers):
    return requests.get(url, headers=headers)

Testing the Integration

Don't forget to test! Here's a simple unit test to get you started:

import unittest
from unittest.mock import patch
from your_module import get_access_token

class TestAdobeSignIntegration(unittest.TestCase):
    @patch('requests.post')
    def test_get_access_token(self, mock_post):
        mock_post.return_value.json.return_value = {"access_token": "fake_token"}
        token = get_access_token("fake_id", "fake_secret", "fake_refresh")
        self.assertEqual(token, "fake_token")

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

Deployment Considerations

As you scale up, consider:

• Using async libraries like aiohttp for better performance
• Implementing proper logging and monitoring
• Securely managing your API credentials (consider using environment variables or a secrets manager)

Conclusion

And there you have it! You've just built a solid foundation for your Adobe Sign API integration. Remember, this is just the beginning. The API offers a wealth of features to explore, so don't be afraid to dive deeper.

Keep coding, keep learning, and most importantly, have fun building amazing things!