Mohammed, I would guess that the request failed and the response body contains an error message and you're attempting to parse that as JSON. I'd suggest inspecting the response codes from the request before attempting to interpret the response body. You can also look at your logs/nifi-user.log for any errors from your request.
Thanks Matt On Thu, May 25, 2017 at 10:04 AM, mohammed shambakey <[email protected]> wrote: > Hi > > I'm trying to call nifi rest api from Python "request" module ( > http://docs.python-requests.org/en/master/) to enable transmission in a > remote process group (I think this is done by changing the "transmitting" > element in the required input port to a boolean "true"). > > So, I get the JSON file of the remote process group using this Python > "requests" module commad: > > rpg=requests.get("http://localhost:8085/nifi-api/remote-process-groups/<id > of remote process group>").json() > The output json file is attached > > I modified the "transmitting" element of the the input port to boolean > "True", then, I tried to pass the modified JSON file to the following > command > > rpg_new=requests.put("http://localhost:8085/nifi-api/ > remote-process-groups/<id of remote process group>", json=rpg).json() > > But I receive the following error: > " > Traceback (most recent call last): > File "rpg_nifi_create.py", line 116, in <module> > rpg_update=requests.put(url_rpg_update+rpg['id'],json=rpg, > headers=token_header).json() > File > "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/models.py", > line 826, in json > return complexjson.loads(self.text, **kwargs) > File "/home/shambakey1/miniconda2/lib/python2.7/json/__init__.py", line > 339, in loads > return _default_decoder.decode(s) > File "/home/shambakey1/miniconda2/lib/python2.7/json/decoder.py", line > 367, in decode > raise ValueError(errmsg("Extra data", s, end, len(s))) > ValueError: Extra data: line 1 column 2 - line 1 column 63 (char 1 - 62) > " > > I tried to truncate the passed JSON file such that it contains information > only about "revision" and the modified "inputPorts" list, but still the > same problem. > > I can the JSON file (before and after modification) using jsonview, so I > think there is nothing wrong the JSON structure (e.g., no independent > dictionaries). I don't know what is the problem? > > Regards > > -- > Mohammed >
