Hi Everybody,
I did quite an extensive search but was unable to find any functional examples of Python REST api doing the FileInfo writing. (Reading is ok).
The samples at https://library.netapp.com/ecmdocs/ECMLP2858435/html/resources/file_info.html#netapp_ontap.resources.file_info.FileInfo.get_collection are not functional.
An sample of writing to new, named file and writing to existing file would suffice.
I'm currently at Ontap 9.7
Thanks!
Robert
Glad you found a work around. I agree. I created a ticket (1529956) to fix the documentation issues. Both to change the example for writing to a new file to be like the one I posted above, and to change the example of adding to an existing file to be like:
from netapp_ontap import HostConnectionfrom netapp_ontap.resources import FileInfoheaders = ({"Accept": "multipart/form-data"})with HostConnection("<mgmt-ip>", username="admin", password="password", verify=False, headers=headers): resource = FileInfo("54c06ce2-5430-11ea-90f9-005056a73aff", path="aNewFile") resource.patch(hydrate=True, data="*here is a little more data", byte_offset=39)
Sorry about the issues with the documentation. They will be fixed.
Thanks,
Daniel
Hi Robert, the docs you linked to are an older version of our documentation for netapp_ontap. Please refer to the examples in our latest docs (https://library.netapp.com/ecmdocs/ECMLP2882316/html/resources/file_info.html) and let me know if you have any issues writing to both new and existing files from the documentation found there.
Dnaiel
Daniel thanks for quick reply.
Unfortunately, the latest docs' example is also failing. I tried the 'write to new file' example verbatim and it throws an exception:
Caused by HTTPError('400 Client Error: Bad Request for url: https://devcd1.lod.netapp.com:443/api/storage/volumes/ddc41772-5a2b-4c5e-9e56-f33dd0b821e1/files'): Invalid JSON input. Unexpected character in stream: d around 0:3.
I tried to write both string and bytes, same error:
file.post(hydrate=True, data="Data to be written")
file.post(hydrate=True, data=b"Data to be written")
Can you please give that example a quick try, make sure it works as described, and let me know how it went. Also do let me know which ontap version you are testing against, to rule out possible ontap 9.7 (my version) limitations.
Also, from the 'writing to new file' example, I don't understand how to name such new file. The FileInfo object creating considers nothing but volume id, there is no file name as such.
Thanks
Hi Robert,
I did some testing against a client running 9.7 and realized that you must include the path of the new file that you would like to create as a positional argument when initializing the FileInfo resource. For example:
from netapp_ontap import HostConnectionfrom netapp_ontap.resources import FileInfowith HostConnection("<mgmt-ip>", username="admin", password="password", verify=False): resource = FileInfo("54c06ce2-5430-11ea-90f9-005056a73aff", "newFileName") resource.post(hydrate=True, data="the data to be written to the new file") print(resource)
This will create a file "newFileName" and put the data into that file. This also answers your second question on how to name such a new file.
I hope this fixes all of your issues.
Thanks much, writing to new file works now.
Do you know who should be contacted to fix the documentation page so others don't run into same trouble. I could not find any links on the doc page itself...
One more question, about writing to existing file. It also fails when invoked as documented. At the beginning of this sample I just demonstrated the existing file really exists, and then continued with the docs sample verbatim...
>>> netapp_ontap.config.CONNECTION=conn >>> filename='rest_file.dat' >>> data='sample_data' >>> vol = netapp_ontap.resources.Volume.find(name="RSSIMPLE") >>> files = netapp_ontap.resources.FileInfo.get_collection(vol.uuid, name=filename) >>> files=list(files) >>> files [FileInfo({'_links': {'metadata': {'href': '/api/storage/volumes/ddc41772-5a2b-4c5e-9e56-f33dd0b821e1/files/rest_file%2Edat?return_metadata=true'}}, 'path': '', 'name': 'rest_file.dat', 'volume': {'uuid': 'ddc41772-5a2b-4c5e-9e56-f33dd0b821e1', '_links': {'self': {'href': '/api/storage/volumes/ddc41772-5a2b-4c5e-9e56-f33dd0b821e1'}}}, 'type': 'file'})] >>> #example from docs >>> resource = netapp_ontap.resources.FileInfo(vol.uuid, path="rest_file.dat") >>> resource.patch(hydrate=True, data="*here is a little more data", byte_offset=39) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\resources\file_info.py", line 1688, in patch return super()._patch( File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\utils.py", line 51, in wrapper return func(*args, **kwargs) File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\resource.py", line 1104, in _patch return self._poll( File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\resource.py", line 1288, in _poll response = self._get(fields='*') File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\utils.py", line 55, in wrapper return on_api_fail(erro) File "C:\Users\user\AppData\Roaming\Python\Python39\site-packages\netapp_ontap\utils.py", line 78, in on_api_fail raise NetAppRestError(cause=erro) from None netapp_ontap.error.NetAppRestError: Caused by HTTPError('500 Server Error: Internal Server Error for url: https://devcd1:443/api/storage/volumes/ddc41772-5a2b-4c5e-9e56-f33dd0b821e1/files/rest_file.dat?fields=%2A'): Not a directory >>>
Hi folks. Can anyone provide curl examples of writing to and reading from files?
