Setting scan variable

[Martin Craig]

I'm looking to set custom variables on a scan. A previous thread (from some time ago) suggested that this could be done using a request like:

PUT  /REST/projects/HCP_Q2/subjects/100307/experiments/100307_3T/scans/305?xsiType=xnat:mrScanData&xnat:mrScanData/parameter/addParam[name=variable_name]/addField=TEST

Unfortunately I'm having no luck getting this to work. My url is:

<xnat_host>/data/projects/projectname/subjects/XNAT_S00017/experiments/XNAT_E00116/scans/64?xsiType=xnat:mrScanData&xnat:mrScanData/parameters/addParam[name=TEST]/addField=RESULT

The status code is 200 but I cannot find the parameter anywhere in the scan info.

Does this feature still exist and if so is there any sign of what I might be doing wrong here?

Thanks,

Martin

[Charlie Moore]

Hi Martin,

The main problem here with the call is probably URL-encoding of the parameters. Here's a curl call I just used to set an addParam:
curl -u admin:admin -X PUT "${DEV}/data/archive/experiments/XNAT_E00029/scans/4?xnat%3AmrScanData%2Fparameters%2FaddParam%5Bname%3Dsegmented%5D%2FaddField=1&xsiType=xnat%3AmrScanData"

I'd confirm that works for you with curl, and then try to adapt it to whatever REST client you wish.

Thanks,

Charlie Moore

[Martin Craig]

Many thanks, that's done the trick. I should have paid attention to which bits were the url and which were parameters!

Martin

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