Python Examples

This page provides practical examples of how to use the Qanapi Smart Data Proxy with Python for various common scenarios.

Setup

First, make sure you have the requests library installed:

pip install requests

Basic Data Encryption

Encrypt specific fields in a JSON payload:

import requests
import json

# Your Qanapi configuration
tenant_url = "https://your-tenant.qanapi.cloud"
project_id = "your-project-id"
api_key = "your-api-key"

# Data to encrypt
data = {
    "name": "John Smith",
    "email": "john@example.com",
    "ssn": "123-45-6789",
    "dob": "1980-01-01",
    "address": "123 Main St"
}

# Headers for the request
headers = {
    "X-Qanapi-Authorization": api_key,
    "X-Qanapi-Mode": "encrypt",
    "X-Qanapi-Fields": "ssn,dob",
    "Content-Type": "application/json"
}

# Make the request
response = requests.post(
    f"{tenant_url}/proxy/{project_id}",
    headers=headers,
    json=data
)

# Print the response
encrypted_data = response.json()
print(json.dumps(encrypted_data, indent=2))

Decrypting Data

Decrypt previously encrypted fields:

import requests
import json

# Your Qanapi configuration
tenant_url = "https://your-tenant.qanapi.cloud"
project_id = "your-project-id"
api_key = "your-api-key"

# Data with encrypted fields
encrypted_data = {
    "name": "John Smith",
    "email": "john@example.com",
    "ssn": "qanapi:bm9uZQ:MDFqNDRrZmJmenkyc3ZqbTg1NG5qYng2d2c:dHFkY1Q1MW81Y1hLcTRCdkxibG1DK3NoMnF0ZFE3OFVIa3REbFZwVGpmQT0:$",
    "dob": "qanapi:bm9uZQ:MDFqNDRrZmJnOWN4ejYwcHFxOWo3c3huYXE:dzlTdlYwVkNVK0xmVXUwM2JLT2xGQi9rbHF4R1l0MWxCZlR5QlNqeHpZUT0:$",
    "address": "123 Main St"
}

# Headers for the request
headers = {
    "X-Qanapi-Authorization": api_key,
    "X-Qanapi-Mode": "decrypt",
    "X-Qanapi-Fields": "ssn,dob",
    "Content-Type": "application/json"
}

# Make the request
response = requests.post(
    f"{tenant_url}/proxy/{project_id}",
    headers=headers,
    json=encrypted_data
)

# Print the response
decrypted_data = response.json()
print(json.dumps(decrypted_data, indent=2))

Encrypting and Forwarding

Encrypt data and forward it to another service:

import requests
import json

# Your Qanapi configuration
tenant_url = "https://your-tenant.qanapi.cloud"
project_id = "your-project-id"
api_key = "your-api-key"

# Data to encrypt and forward
data = {
    "title": "Sensitive title",
    "body": "Sensitive body content",
    "userId": 1
}

# Destination service
destination_url = "https://jsonplaceholder.typicode.com/posts"

# Headers for the request
headers = {
    "X-Qanapi-Authorization": api_key,
    "X-Qanapi-Mode": "encrypt",
    "X-Qanapi-Fields": "title,body",
    "X-Qanapi-Destination": destination_url,
    "Content-Type": "application/json"
}

# Make the request
response = requests.post(
    f"{tenant_url}/proxy/{project_id}",
    headers=headers,
    json=data
)

# Print the response from the destination service
forwarded_response = response.json()
print(json.dumps(forwarded_response, indent=2))

Encrypting Nested Fields

Encrypt fields within nested objects using dot notation:

import requests
import json

# Your Qanapi configuration
tenant_url = "https://your-tenant.qanapi.cloud"
project_id = "your-project-id"
api_key = "your-api-key"

# Data with nested fields to encrypt
data = {
    "orderId": "ord_12345",
    "user": {
        "name": "Jane Doe",
        "ssn": "987-65-4321",
        "email": "jane@example.com"
    },
    "payment": {
        "amount": 199.99,
        "cardDetails": {
            "number": "5555555555554444",
            "expiry": "03/24",
            "cvv": "321"
        }
    }
}

# Headers for the request
headers = {
    "X-Qanapi-Authorization": api_key,
    "X-Qanapi-Mode": "encrypt",
    "X-Qanapi-Fields": "user.ssn,payment.cardDetails.number",
    "Content-Type": "application/json"
}

# Make the request
response = requests.post(
    f"{tenant_url}/proxy/{project_id}",
    headers=headers,
    json=data
)

# Print the response
encrypted_data = response.json()
print(json.dumps(encrypted_data, indent=2))

Creating a Reusable Qanapi Client

For convenience, you can create a reusable client class:

import requests
import json

class QanapiClient:
    def __init__(self, tenant_url, project_id, api_key):
        self.tenant_url = tenant_url
        self.project_id = project_id
        self.api_key = api_key
        self.proxy_url = f"{tenant_url}/proxy/{project_id}"
    
    def encrypt(self, data, fields, destination=None):
        """
        Encrypt specified fields in the data.
        
        Args:
            data (dict): The data to encrypt
            fields (str): Comma-separated list of fields to encrypt
            destination (str, optional): URL to forward the encrypted data
            
        Returns:
            dict: The response from Qanapi
        """
        headers = {
            "X-Qanapi-Authorization": self.api_key,
            "X-Qanapi-Mode": "encrypt",
            "X-Qanapi-Fields": fields,
            "Content-Type": "application/json"
        }
            
        if destination:
            headers["X-Qanapi-Destination"] = destination
        
        response = requests.post(
            self.proxy_url,
            headers=headers,
            json=data
        )
        
        return response.json()
    
    def decrypt(self, data, fields, destination=None):
        """
        Decrypt specified fields in the data.
        
        Args:
            data (dict): The data containing encrypted fields
            fields (str): Comma-separated list of fields to decrypt
            destination (str, optional): URL to forward the decrypted data
            
        Returns:
            dict: The response from Qanapi
        """
        headers = {
            "X-Qanapi-Authorization": self.api_key,
            "X-Qanapi-Mode": "decrypt",
            "X-Qanapi-Fields": fields,
            "Content-Type": "application/json"
        }
            
        if destination:
            headers["X-Qanapi-Destination"] = destination
        
        response = requests.post(
            self.proxy_url,
            headers=headers,
            json=data
        )
        
        return response.json()

# Usage example
if __name__ == "__main__":
    # Initialize the client
    client = QanapiClient(
        tenant_url="https://your-tenant.qanapi.cloud",
        project_id="your-project-id",
        api_key="your-api-key"
    )
    
    # Data to encrypt
    user_data = {
        "name": "John Smith",
        "ssn": "123-45-6789",
        "email": "john@example.com"
    }
    
    # Encrypt data
    encrypted_data = client.encrypt(
        data=user_data,
        fields="ssn"
    )
    print("Encrypted data:")
    print(json.dumps(encrypted_data, indent=2))
    
    # Decrypt data
    decrypted_data = client.decrypt(
        data=encrypted_data,
        fields="ssn"
    )
    print("\nDecrypted data:")
    print(json.dumps(decrypted_data, indent=2))

Error Handling

Proper error handling is important when working with the Qanapi API:

import requests
import json

# Your Qanapi configuration
tenant_url = "https://your-tenant.qanapi.cloud"
project_id = "your-project-id"
api_key = "your-api-key"

# Data to encrypt
data = {
    "name": "John Smith",
    "ssn": "123-45-6789"
}

# Headers for the request
headers = {
    "X-Qanapi-Authorization": api_key,
    "X-Qanapi-Mode": "encrypt",
    "X-Qanapi-Fields": "ssn",
    "Content-Type": "application/json"
}

try:
    # Make the request
    response = requests.post(
        f"{tenant_url}/proxy/{project_id}",
        headers=headers,
        json=data
    )
    
    # Check if the request was successful
    response.raise_for_status()
    
    # Process the response
    encrypted_data = response.json()
    print(json.dumps(encrypted_data, indent=2))
    
except requests.exceptions.HTTPError as e:
    # Handle HTTP errors (4xx, 5xx)
    print(f"HTTP Error: {e}")
    try:
        error_data = response.json()
        print(f"Error details: {json.dumps(error_data, indent=2)}")
    except:
        print(f"Error response: {response.text}")
        
except requests.exceptions.ConnectionError:
    print("Connection Error: Failed to connect to Qanapi")
    
except requests.exceptions.Timeout:
    print("Timeout Error: The request timed out")
    
except requests.exceptions.RequestException as e:
    print(f"Error: {e}")

Next Steps

For more detailed examples and information:

Smart Data Proxies

API v1 Usage Examples

API v2

Python Examples

Python Examples

Setup

Basic Data Encryption

Decrypting Data

Encrypting and Forwarding

Encrypting Nested Fields

Creating a Reusable Qanapi Client

Error Handling

Next Steps

Smart Data Proxies

API v1 Usage Examples

API v2

Documentation Index

​Python Examples

​Setup

​Basic Data Encryption

​Decrypting Data

​Encrypting and Forwarding

​Encrypting Nested Fields

​Creating a Reusable Qanapi Client

​Error Handling

​Next Steps

Python Examples

Setup

Basic Data Encryption

Decrypting Data

Encrypting and Forwarding

Encrypting Nested Fields

Creating a Reusable Qanapi Client

Error Handling

Next Steps