Hi, I've tried with branch release_19.05 and dev (fetch yesterday from git) Fred -----Message d'origine----- De : SAPET, Frederic via galaxy-dev <galaxy-dev@lists.galaxyproject.org> Envoyé : lundi 19 août 2019 17:19 À : Galaxy-dev <galaxy-dev@lists.galaxyproject.org> Objet : [galaxy-dev] set up an asynchronous data source in galaxy Hi, I'm trying to set up an asynchronous data source in galaxy. I follow the examples that Helena provide here : https://github.com/erasche/galaxy-data_source-examples/tree/master/flask It's a success for synchronous modE. But when I test the asynchronous mode, it fails. from what I understand, the file in history (that would contains the data) is not well created. The example creates a link like this one : https://galaxydev.biogemma.fr:4430/export/?gx_url=https%3A%2F%2Fgalaxydev.bi... When I click on the link, no file is created in my history. The error in the log is : File "lib/galaxy/webapps/galaxy/controllers/async.py", line 150, in index open(data.file_name, 'wb').close() # create the file IOError: [Errno 2] No such file or directory: '' The filename is missing, so I have no new file in my history waiting for the asynchronous process to fill it. I've described the error here (with complete log messages) : https://github.com/erasche/galaxy-data_source-examples/issues/6 Can anybody reproduce this? Is this an issue? or a misconfiguration from my side? thank you. Fred ___________________________________________________________ Please keep all replies on the list by using "reply all" in your mail client. To manage your subscriptions to this and other Galaxy lists, please use the interface at: %(web_page_url)s To search Galaxy mailing lists use the unified search at: http://galaxyproject.org/search/