Send retrieve command and close connection

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1

Hi,

I want to retrieve a search from a remote modality.
I am using curl but when I do the retrieve POST, curl keeps waiting for the full retrieve to finish which sometimes takes minutes.

How can I send an asynchronous retrieve?

Thanks
Diego

2

Hello,

There’s a “Synchronous” option that can be set to “false” if you don’t want to wait for the completion of the job.

Here’s a sample session:

$ curl http://localhost:8042/modalities/self/query -d ‘{“Level”:“Study”,“Query”:{“PatientName”:“KNEE”}}’
{
“ID” : “b37c1e11-e63d-46fe-890c-d4842eb464ca”,
“Path” : “/queries/b37c1e11-e63d-46fe-890c-d4842eb464ca”
}

$ curl http://localhost:8042/queries/b37c1e11-e63d-46fe-890c-d4842eb464ca/retrieve -d ‘{“TargetAet”:“ORTHANC”,“Synchronous”:false}’
{
“ID” : “11541b16-e368-41cf-a8e9-3acf4061d238”,
“Path” : “/jobs/11541b16-e368-41cf-a8e9-3acf4061d238”
}

HTH,

Sébastien-

3

Thanks. That’s exactly what I was looking for. Is it documented anywhere? I couldn’t find it.

Best
Diego

4

Hi Sebastien,

I tried to run the request using python-request with the following command:

u = ‘http://localhost:8042/queries/‘+q+’/retrieve’
action_item = requests.post(u,
auth=(‘XXX’, ‘XXX’),
data = “mydcmserver”)

and it works perfectly.

But when I added the Synchronous option, it responds with status 200 but no job is actually executed.

action_item = requests.post(u,
auth=(‘XXX’, ‘XXX’),
data = {“TargetAet”:“mydcmserver”,“Synchronous”:False})

Thanks
Diego

5

Hello,

This feature is not documented yet. Feel free to contribute by improving the following section of the documentation:
http://book.orthanc-server.com/users/rest.html#performing-retrieve-c-move
http://book.orthanc-server.com/contributing.html

Regards,
Sébastien-

6

Hello again,

You can monitor the completion of the submitted jobs by watching the “/jobs” URI that is returned by the call to “/queries/…/retrieve”.

The Orthanc Explorer Web interface has also a “Jobs” tab that shows the status of the jobs.

You can find examples of scripts watching for jobs in the integration tests. Check out function “MonitorJob()” in the following file:
https://bitbucket.org/sjodogne/orthanc-tests/src/default/Tests/Tests.py

Sébastien-