Re: [HAPI-devel] hl7 over http

[James A. <ja...@ja...>]

Hi Matt,

You'll find the full specification for HL7 over HTTP here:
http://hl7api.sourceforge.net/hapi-hl7overhttp/specification.html

1) what should the content type be for the response messages ER7
formatted hl7 requests (I'm thinking text/plain)

application/hl7-v2

(although as a part of preparation for balloting at HL7 this has been
changed to "application/hl7-v2+er7". HAPI currently won't accept the
latter, but the next version will accept either.)

2) Using the following code, how would I serialize the response message
for the http response stream?

Here is a complete example of sending a message using HAPI's HL7 over HTTP
implementation: http://hl7api.sourceforge.net/hapi-hl7overhttp/doc_hapi.html

3) are signers required?
4) Does anyone have an example of how signers are contstructed/implemented?

Depends what you mean by signers. There was a "signature header" present in
a previous version of the specification, but that was removed about a year
ago. I doubt it ever got used anywhere.

5) are there any headers that would be expected in Hl7 over http responses ?

Other than Content-Type (including charset=utf-8), no.

Cheers,
James


On Thu, Jun 5, 2014 at 3:49 PM, Matt Young <mat...@pa...> wrote:

> I have some questions about hl7 over http.
> 1) what should the content type be for the response messages ER7
> formatted hl7 requests (I'm thinking text/plain)
> 2) Using the following code, how would I serialize the response message
> for the http response stream?
>   Parser p = hapiContext.getGenericParser();
>   Message resp= null;
>   Message hapiMsg;
>
>                         // The parse method performs the actual parsing
>   hapiMsg = p.parse(hl7Text);
>   respMsg= mainProcessor.processMessage(hapiMsg, new
> HashMap<String,Object>()); // mainProcessor implements
> ca.uhn.hl7v2.protocol.ReceivingApplication
>   // I don't know if the following would be right
> httpServletResponse.getOutputStream().write(respMsg.encode().getBytes());
> // what happens if the hl7Text contained xml?  what if it was ER7?
> 3) are signers required?
> 4) Does anyone have an example of how signers are contstructed/implemented?
> 5) are there any headers that would be expected in Hl7 over http responses
> ?
>
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