[Seaside] WAResponse and XML

Fri Aug 5 13:55:45 UTC 2011

We interface with an IVR system by answering VXML. I ended up
subclassing WARequestHandler and implemented #handleFiltered: as indicated
in the class comments.

Here is a simplified version of the method...
handleFiltered: aRequestContext
| response result request |
request := aRequestContext request.
result := self processCall: request.
response := aRequestContext response.
response
contentType: self contentType;
nextPutAll: result.
aRequestContext respond.

...where #processCall: answers a VXML string based on the request contents
(using #aRequest>>at:ifPresent:)

That, plus a class initialize method...
^WAAdmin register: self at: 'IVR'
...was all that was needed to get started.

The same image also serves a full Seaside interface for the IVR
application.

Bob Nemec

On Wed, Aug 3, 2011 at 8:01 PM, Jay Hardesty <jayh at panix.com> wrote:

> In fact I assume I really need to push this functionality down to the
> purely HTTP level.
>
> Situation arose because I've been reusing my Seaside apps to serve data to
> other sorts of clients as well - overkill I guess since I'm not using any
> generated html in such cases
>
>
> On Aug 4, 2011, at 1:53 AM, Jay Hardesty wrote:
>
> Thank you for the response, James.
>
> For me, the problem is that I need the XML to be processed automatically
> (with no dialog).
>
> Whereas my response from Seaside used to return XML - that is something
> starting with:
> <?xml version="1.0" encoding="UTF-8"?...  (because that's how my xmlString
> starts)
>
> I instead now see something starting:
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 ...
>
> For instance the response returned from the code fragment in your response
> ultimately arrives as the same (html) result
>
> I should mention that this particular request is being sent to my Seaside
> app from a non-Seaside client; perhaps a Seaside app simply can't be used in
> such a way anymore(?)
>
> Thanks again,
> Jay
>
>
> On Aug 4, 2011, at 1:27 AM, James Foster wrote:
>
> Jay,
>
> With the following code, clicking on a link will open a dialog asking what
> application to use to open the document or offering to save the document.
> This looks close to what you are doing. (I'm using Seaside 3.0.5 in
> GemStone/S.)
>
> James
>
> self requestContext respond: [:response |
>  | document |
>  document := myXmlString seasideMimeDocument
>  mimeType: (WAFileLibrary mimetypeFor: 'xml');
>  fileName: 'myNewFile.xml';
>  yourself.
>  response
>  document: document;
>  doNotCache;
>  yourself.
> ].
>
> On Aug 3, 2011, at 4:09 PM, Jay Hardesty wrote:
>
>
> Hi - I'm having a problem returning XML as a response from within a Seaside
> app, after moving to 3.0.
>
>
> I used to return XML by:
>
>
> self session returnResponse:
>
>  (WAResponse new
>
>  contentType: 'text/xml';
>
>  nextPutAll: xmlString;
>
>  yourself)
>
>
> but t in Seaside 3.0 I get:
>
> 'You can no longer return a new WAResponse instance. You must instead
> modify the Response contained in the active RequestContext. Look for senders
> of #respond: and #response for examples.'
>
>
>
> Following the nearest examples I can find I tried:
>
>
> self requestContext respond: [:response |
>
>  | document |
>
>  document := MIMEDocument
>
>  contentType: 'text/xml';
>
>  content: xmlString.
>
>  response document: document]
>
>
> and:
>
>
> self requestContext respond: [:response |
>
>  response
>
>  contentType: 'text/xml';
>
>  nextPutAll: xmlString]
>
>
> but in both cases an html document arrives downstream (with XML in the
> body) rather than the XML itself as previously
>
>
> Think I'm missing something basic here... Thanks very much for any
> pointers,
>
> Jay
>
>
>
>
>
>
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