Category: Python

Hi Folks,

This is in continuation to the previous blog post…if you haven’t gone through the earlier post on connecting to Dataverse using Python, please have a look here

Python + Dataverse Series – #01 – Console Application using Python

Now, we will see how you can retrieve the records in Dataverse using Web API using Python…

1. Follow the previous blog post for connecting to Dataverse using Python
2. Once you get the access token via the TDS End point, we can invoke the Dataverse Web API using below code…

	import pyodbc
	import msal
	import requests
	import json
	# Azure AD details
	client_id = 'XXXX'
	client_secret = 'XXXX'
	tenant_id = 'XXXX'
	authority = f'https://login.microsoftonline.com/{tenant_id}'
	resource = 'https://XXXX.crm8.dynamics.com'
	# SQL endpoint
	sql_server = 'XXXX.crm8.dynamics.com'
	database = 'XXXX'
	# Get token with error handling
	try:
	print(f"Attempting to authenticate with tenant: {tenant_id}")
	print(f"Authority URL: {authority}")
	app = msal.ConfidentialClientApplication(client_id, authority=authority, client_credential=client_secret)
	print("Acquiring token…")
	token_response = app.acquire_token_for_client(scopes=[f'{resource}/.default'])
	if 'error' in token_response:
	print(f"Token acquisition failed: {token_response['error']}")
	print(f"Error description: {token_response.get('error_description', 'No description available')}")
	else:
	access_token = token_response['access_token']
	print("Token acquired successfully and your token is!"+access_token)
	print(f"Token length: {len(access_token)} characters")
	except ValueError as e:
	print(f"Configuration Error: {e}")
	print("\nPossible solutions:")
	print("1. Verify your tenant ID is correct")
	print("2. Check if the tenant exists and is active")
	print("3. Ensure you're using the right Azure cloud (commercial, government, etc.)")
	except Exception as e:
	print(f"Unexpected error: {e}")
	#Get 5 contacts from Dataverse using Web API
	import requests
	import json
	try:
	print("Making Web API request to get contacts…")
	# Dataverse Web API endpoint for contacts
	web_api_url = f"{resource}/api/data/v9.2/contacts"
	# Set up headers with authorization token
	headers = {
	'Authorization': f'Bearer {access_token}',
	'OData-MaxVersion': '4.0',
	'OData-Version': '4.0',
	'Accept': 'application/json',
	'Content-Type': 'application/json'
	}
	# Add query parameters to get only 5 contacts with specific fields
	params = {
	'$top': 5,
	'$select': 'contactid,fullname,emailaddress1,telephone1,createdon'
	}
	# Make the GET request
	response = requests.get(web_api_url, headers=headers, params=params)
	if response.status_code == 200:
	print("Web API request successful!")
	contacts_data = response.json()
	print(f"\nFound {len(contacts_data['value'])} contacts:")
	print("-" * 80)
	for i, contact in enumerate(contacts_data['value'], 1):
	print(f"Contact {i}:")
	print(f" ID: {contact.get('contactid', 'N/A')}")
	print(f" Name: {contact.get('fullname', 'N/A')}")
	print(f" Email: {contact.get('emailaddress1', 'N/A')}")
	print(f" Phone: {contact.get('telephone1', 'N/A')}")
	print(f" Created: {contact.get('createdon', 'N/A')}")
	print("-" * 40)
	else:
	print(f"Web API request failed with status code: {response.status_code}")
	print(f"Error details: {response.text}")
	except requests.exceptions.RequestException as e:
	print(f"Request error: {e}")
	except KeyError as e:
	print(f"Token not available: {e}")
	except Exception as e:
	print(f"Unexpected error: {e}")

view raw Python – Dataverse – Web API hosted with ❤ by GitHub

You can use the VS Code as IDE, copy the above code in a python file, next click on Run Python File at the top of the VS Code

So, once you get the Access token, you can invoke the Web API using Python similar to how we did it using Javascript…

Hope this helps…

Cheers,

PMDY