Getting Data In

Splunk HEC: Python post requests fails with 401 Unauthorized client error while cURL requests are fine

spervez
New Member

I have created a python script to post json data to Splunk:

splunk_ep = 'https://xxx:8088/services/collector/event'
SPLUNK_TOKEN = os.getenv('SPLUNK_TOKEN')
auth_header = {'Authorization': SPLUNK_TOKEN, 'Content-Type': 'application/json'}

def SendToSplunk(data):
        response = requests.post(splunk_ep, json=data, headers=auth_header, verify = False)
        print(response)

It returns following error:
401 Client Error: Unauthorized for url: https://xxx:8088/services/collector/event

However, If use cURL with above params, it works fine. Please advise.
Thanks

0 Karma

starcher
Influencer

You could also use a pre-made HEC class.
https://github.com/georgestarcher/Splunk-Class-httpevent

renjith_nair
Legend

@spervez,

In the authorization header, you need to add the Splunk keyword "Authorization: Splunk <hec_token>" . If your environment variable does not have this, try adding the keyword.

---
What goes around comes around. If it helps, hit it with Karma 🙂

spervez
New Member

Hi Renjith,
Thanks for coming back.

I have resolved the issue and it was a stupid error I was making in using keyword SPLUNK instead of Splunk.

Regards

0 Karma

renjith_nair
Legend

@spervez, glad its working. If you think the above answer helped you to resolve the issue, accept/upvote.
Also try the class mentioned by George below. That will definitely help you to get going.

---
What goes around comes around. If it helps, hit it with Karma 🙂
0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...