Not able to start processor group through Python requests (Rest api)

akhileshchand04 — Tue, 21 Jan 2020 07:42:32 GMT

I'm trying to execute python code to start processor group and getting below error

Error:

Traceback (most recent call last):
400 Client Error: Bad Request for url: http://localhost:8080/nifi-api/process-groups/bee62419-016f-1000-f131-5c589af8faff
File "/Users/xxxx/Documents/Project/BU/pythonPractice/nifiTest.py", line 19, in <module>
r.raise_for_status()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/requests/models.py", line 940, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: http://localhost:8080/nifi-api/process-groups/bee62419-016f-1000-f131-5c589af8faff

Code:

newUrl="http://localhost:8080/nifi-api/process-groups/bee62419-016f-1000-f131-5c589af8faff"
data1={'id':'bee62419-016f-1000-f131-5c589af8faff','state':'RUNNING'}

try:
    r = requests.put(newUrl, data=data1,headers={'Content-Type': 'application/json','Accept': 'application/json','Authorization': 'Bearer [OAUTH2_TOKEN]'})
    #r = requests.get(newUrl, data=data1, headers={'Content-Type': 'application/json', 'Accept': 'application/json',
                                                 # 'Accept-Charset': 'UTF-8'})

    r.raise_for_status()
except  requests.exceptions.RequestException as e:
    print(e)
    raise

When same thing I'm executing through curl command it working for me

curl -i -X PUT -H "Content-Type: application/json" -d '{"id":"bee62419-016f-1000-f131-5c589af8faff","state":"RUNNING"}' http://localhost:8080/nifi-api/flow/process-groups/bee62419-016f-1000-f131-5c589af8faff

HTTP/1.1 200 OK

Date: Mon, 20 Jan 2020 16:38:34 GMT

X-Frame-Options: SAMEORIGIN

Content-Security-Policy: frame-ancestors 'self'

X-XSS-Protection: 1; mode=block

Cache-Control: private, no-cache, no-store, no-transform

Content-Type: application/json

Vary: Accept-Encoding

Vary: User-Agent

Content-Length: 63

Server: Jetty(9.4.19.v20190610)

Re: Not able to start processor group through Python requests (Rest api)

akhileshchand04 — Tue, 21 Jan 2020 14:02:49 GMT

I found the solution myself

import requests

headers = {
'Content-Type': 'application/json',
}

data = '{"id":"bee62419-016f-1000-f131-5c589af8faff","state":"RUNNING"}'

response = requests.put('http://localhost:8080/nifi-api/flow/process-groups/bee62419-016f-1000-f131-5c589af8faff', headers=headers, data=data)

Re: Not able to start processor group through Python requests (Rest api)

stevenmatison — Tue, 21 Jan 2020 14:06:34 GMT

You should be able to accept your own reply as solution marking it closed/solved.

One thing I do notice, which I HIGHLY recommend against is using "localhost"...

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Not able to start processor group through Python requests (Rest api)

Re: Not able to start processor group through Python requests (Rest api)

Re: Not able to start processor group through Python requests (Rest api)