I am using the following python code which results in an error 400.  I setup the self-client and have received a clean token and can generate a new token via my refresh token.

1. import requests
2. import datetime
3. import time
4. import json
5. 
   
6. api_url = 'https://assist.zoho.com/api/v2/reports'
7. 
   
8. access_token = '1000.*****************************************************************'
9. 
   
10. def dt():
11.     one_week_ago = datetime.datetime.now() - datetime.timedelta(weeks=3)
12.     fromdate = int(one_week_ago.timestamp())
13.     fromdate = fromdate * 1000
14.     
15.     todate = int(time.time())
16.     todate = todate * 1000
17. 
    
18.     return (fromdate, todate)
19. 
    
20. #get unix from and to dtstamps and ensure they are longs per api spec
21. getdate = dt()
22. fromdate = int(getdate[0])
23. todate = int(getdate[1])
24. 
    
25. #set the report type per required argument
26. type = 'rs'
27. 
    
28. data = {
29.     'type': type,
30.     'fromdate': fromdate,
31.     'todate': todate
32. }
33.   
34. headers = {
35.     'Authorization': f'Zoho-oauthtoken {access_token}',
36.     'Content-Type': 'application/json'
37. }
38. 
    
39. #send the api request
40. response = requests.get(url=api_url, headers=headers, data=data)
41. 
    
42. if response.status_code == 200:
43.     print (f'Status Code: {response.status_code}')
44.     try:
45.         json_response = response.json()
46.         print (json_response)
47.     except json.decoder.JSONDecodeError as e:    
48.         print("JSON Descoding error:", e)
49. else:
50.     print(f'API request failed with status code {response.status_code}')