[ckan-dev] Creating resource with upload from an extension

Fri Apr 29 08:15:22 UTC 2016

 Dear Pedro

I am a just a newbie but in case this is helpful, for creating resources to the FileStore using the API I put an empty string as a value for URL and it worked, maybe you can try :) See below my code.

Good luck
Lucia

################## CREATE RESOURCE (UPLOAD FILE) #################

ckan_api_url = ckan_url + 'resource_create'
request_header = {'X-CKAN-API-Key':user_token}

resource_dict = {}
resource_dict['package_id'] = package_id
resource_dict['name'] =  'Tree Report Table'
resource_dict['description'] = 'Report with measurements of trees'
resource_dict['format'] = 'csv'
resource_dict['id'] = 'tree-data-99999-2015'
resource_dict['url'] = ''

requests.post(ckan_api_url, data=resource_dict, headers=request_header, files=[('upload', file('H:\\Envidat_project\\dev\\test\\API-test\\data\\treedata_99999_2015.txt'))])

data_string = urllib.quote(json.dumps(resource_dict))

# Make the HTTP request.
response = urllib2.urlopen(request, data_string)
assert response.code == 200

# Use the json module to load CKAN's response into a dictionary.
response_dict = json.loads(response.read())

# Check the contents of the response.
assert response_dict['success'] is True
result = response_dict['result']
pprint.pprint(result)

_________________________________________________________
Dr. Lucia Espona Pernas

Swiss Federal Institute for Forest, Snow and Landscape Research WSL
Hauptgebäaude Labortrakt (HL D34)
Zürcherstrasse 111
8903 Birmensdorf
Switzerland

+41 44 739 28 71 phone direct
+41 44 739 21 11 reception

www.wsl.ch

-----"ckan-dev" <ckan-dev-bounces at lists.okfn.org> wrote: -----
To: Jonas Oppenlaender <jonas.oppenlaender at seme4.com>
From: Pedro G Silva 
Sent by: "ckan-dev" 
Date: 28.04.2016 14:11
Cc: CKAN Development Discussions <ckan-dev at lists.okfn.org>
Subject: Re: [ckan-dev] Creating resource with upload from an extension

Hi
Your solution does not produce any error, although if I have resource_dict['url'] = None,
[ckanext.harvest.model] Validation Error: {'URL': 'Missing value'}

If I had a value I get that value on the resource link, not a resource pointing to the filestore (or ckan internal storage).

Any ideas?
I'm thinking on using the API inside the extension, but this is a very hacky solution..

On Wed, Apr 27, 2016 at 7:29 PM, Jonas Oppenlaender <jonas.oppenlaender at seme4.com> wrote:
Hi Pedro,

You can just pass it an open file pointer, like this:
resource_dict['upload'] = open(‘/path/to/file’, ‘rb’)

If you use an already open file, you might need to reset the current position before calling the API:
existingfilepointer.seek(0)

Regards,
Jonas Oppenlaender

From: Pedro G Silva
Sent: 27 April 2016 17:51
To: CKAN Development Discussions
Subject: [ckan-dev] Creating resource with upload from an extension

Hi

I have a custom extension which does some parsing on files and then adds them to the dataset created. How should I use the field upload to pass a file? Any ideas?

resource_dict={}
resource_dict['package_id'] = package_id
resource_dict['upload'] = ????
resource_dict['name'] = 'Product Download'
oi = plugins.toolkit.get_action('resource_create')(context,resource_dict)
 -- 

    Pedro Gracio Silva 
Aerospace Systems / Production Center

Av. D. Joao II, Lt 1.17.01, 10 • 1998-023 Lisboa, Portugal 
Ph: +351 21 893 3020 • Fax: +351 21 896 9099

-- 

  Pedro Gracio Silva 
Aerospace Systems / Production Center

Av. D. Joao II, Lt 1.17.01, 10 • 1998-023 Lisboa, Portugal 
Ph: +351 21 893 3020 • Fax: +351 21 896 9099

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