FHIR Chat · Retries

Stream: bulk data

Topic: Retries

Grahame Grieve (May 17 2018 at 15:38):

We don't provide any advice for what to do if an attempted download fails at the end of the bulk data. Should a client retry? How many times?

Josh Mandel (May 17 2018 at 15:45):

Should we have advice on this? Beyond "use appropriate HTC status code to indicate and respond to errors"? Some error statuses indicate that they are transient and retry makes sense; others don't.

Grahame Grieve (May 17 2018 at 16:29):

I don't know. it feels as though it would be unfriendly to hammer on the server in case the problem resolved but it would also be unfriendly to the client to just give up... I'm not sure how to handle this .

Grahame Grieve (May 17 2018 at 16:38):

ok, so other than this, I - finally - have a general client that you can point to any server to do a bulk download. Let me know if you want me to point it to your server and try it out

Dan Gottlieb (May 17 2018 at 18:30):

Sure - the front end to the SMART bulk data server is at https://bulk-data.smarthealthit.org/

Grahame Grieve (May 18 2018 at 18:58):

Dan, that server returns a json capability statement even if you ask for an XML one

Dan Gottlieb (May 18 2018 at 19:01):

Yup, we only have json support implemented so far :)

Josh Mandel (May 18 2018 at 19:01):

(I think the "fix" is to return 406, and to ensure the Capability Statement represents this fact )

Grahame Grieve (May 18 2018 at 19:02):

yes.

Grahame Grieve (May 18 2018 at 19:03):

I made the request for xml by mistake, but you should return an error if you're not going to support xml

Grahame Grieve (May 18 2018 at 19:06):

also, this is a fragment of what you return for Group?_summary=true

Grahame Grieve (May 18 2018 at 19:06):

"entry": [{
        "resourceType": "Group",
        "id": 1,
        "quantity": 27,
        "name": "Blue Cross Blue Shield",
        "text": {
            "status": "generated",
            "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">Blue Cross Blue Shield</div>"
        },
        "type": "person",
        "actual": true
    },

Grahame Grieve (May 18 2018 at 19:06):

this is not valid...

Grahame Grieve (May 18 2018 at 19:09):

so then I initiate a bulk data request, get a response, and then check on the task to see how it's going. I get this:

Grahame Grieve (May 18 2018 at 19:09):

---------------------------
Debugger Exception Notification
---------------------------
Project FHIRToolkitR3.exe raised exception class Exception with message '<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot GET /eyJlcnIiOiIiLCJwYWdlIjoxMDAwMCwiZHVyIjoxMCwidGx0IjoxNSwibSI6MX0/fhir/OiI2NDgwYWM4YjJjZDBmYjhkMjc3MTRiNzg2MGFlMzEyYTNkNGE5NzdkYTFlYzc3OTA2MGY0MWVkZGFiOTVlOWUzIiwicmVxdWVzdFN0YXJ0IjoxNTI2NjcwNTI3NjY1LCJzZWN1cmUiOmZhbHNlLCJyZXF1ZXN0IjoiaHR0cDovL2J1bGstZGF0YS5zbWFydGhlYWx0aGl0Lm9yZy9leUpsY25JaU9pSWlMQ0p3WVdkbElqb3hNREF3TUN3aVpIVnlJam94TUN3aWRHeDBJam94TlN3aWJTSTZNWDAvZmhpci9QYXRpZW50LyRleHBvcnQ_X291dHB1dEZvcm1hdD1hcHBsaWNhdGlvbi94LW5kanNvbiJ9/fhir/bulkstatus</pre>
</body>
</html>
'.
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