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From mike <withforesi...@gmail.com>
Subject Re: jquery ajax: json vs jsonp
Date Mon, 31 Jan 2011 01:49:42 GMT
Hi Jan,

Thanks.

Is there a browser interface that will allow me to change config.html  so I
can make *allow_jsonp TRUE*

Best,

Mike


On Sun, Jan 30, 2011 at 7:07 PM, Jan Lehnardt <jan@apache.org> wrote:

> Hi Mike,
>
> you have to specifically enable JSONP. See the "Configuration" pane in
> Futon.
>
> There are minimal API docs for couch.js and jquery.couch.js here:
>
>  http://www.couchone.com/page/library-couch-js
>  http://www.couchone.com/page/library-jquery-couch-js
>
> Cheers
> Jan
> --
>
>
>
>
>
> On 31 Jan 2011, at 00:41, mike wrote:
>
> > I just started exploring couchDB and ran into this problem.  I am trying
> to access some stuff on my newly created couchone.com database.  I just
> want to learn how to fetch the names of the databases I have created  using
> an ajax call from a client browser running on a local pc.
> >
> > Using jQuery (in Firexox) in the firebug command window I run this:
> >
> > test = function(){
> >   url = "http://withforesight.couchone.com/_all_dbs";
> >  $.ajax({
> >    url: url,
> >    dataType: 'jsonp',
> >    success: ( function(Response){ console.log(26, 'response is: ',
>             Response) } ),
> >    error: function(XMLHttpRequest, textStatus,
> errorThrown){alert("Error"); }
> > });
> >
> > };
> > test()
> >
> > I receive the following reply from the server:
> > HTTP/1.1 200 OK
> > Server: CouchDB/1.0.2 (Erlang OTP/R14B)
> > Date: Sun, 30 Jan 2011 22:52:29 GMT
> > Content-Type: text/plain;charset=utf-8
> > Content-Length: 55
> > Cache-Control: must-revalidate
> >
> > In all cases I see a status code of 200OK.  (note odd content type).
> >
> > However:
> > (1) the success handler DOES NOT trigger.  Nothing appears in the console
> log.
> > (2) In the NET tab I see the data has been returned both in JSON format
> and as an array (under the RESPONSE tab)
> > ["test_suite_reports","test_suite_db","mike","_users"]
> >
> >
> >
> > (3) I see no way to access the returned data in my program.  It is not in
> the DOM and there is no variable I can find that contains the response data.
> > Now if I change the ajax dataType request to just json
> > dataType: 'jsonp', to dataType: 'json',
> > then:
> > (1) the success handler fires
> > (2) BUT  NO is data returned
> > (3) and I get this in response headers
> > HTTP/1.1 200 OK Server: CouchDB/1.0.2 (Erlang OTP/R14B)
> > Date: Sun, 30 Jan 2011 22:55:05 GMT
> > Content-Type: application/json
> > Content-Length: 55
> > Cache-Control: must-revalidate
> > I think jsonP is required because this seems to be a cross-domain
> request.  But either I am missing something or perhaps CouchDB is not setup
> to handle the callback processing required by jsonp requests. (see:
> http://remysharp.com/2007/10/08/what-is-jsonp/)
> > Any help, advice, beer appreciated....
> >
> > Also, I can not find any examples or documentation for:
> > jquery.couch.js (the jQ plugin)
> > and
> > couch.js (that ships with the couchDB installation).
> > Pointers to docs/examples much appreciated.
> >
> > Mike Behar
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>

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