[Zope3-Users] ANN: JSONView

[Jim Washington]

JSONView is now available as part of the jsonserver package.

A JSONView responds to HTTP GET and returns a snippet of JSON.  This is 
useful for AJAX/XHR, things like repopulating a select list without a 
full page refresh.

Usage is fairly simple.  Make a view class subclassing JSONView from 
jsonserver.  In your view class, make a method, doResponse, that returns 
a python dict or list that is the data you wish to return to the 
client.  One other method is always called before publication, 
doCacheControl, which may be overridden/extended for setting caching 
headers.  Content-type, which is by default 'application/json', may be 
overridden in your class by setting an instance variable named 
contentType.  Register your view with the <browser:page> ZCML directive, 
giving it a name, for (interface), class, and permission.

JSONView takes care of matching named parameters in the request with 
named parameters in the doResponse method, so a view named "sum" with a 
method signature like doResponse(a,b=10) can be requested like http://x 
ample.com/sum?a=4&b=9

jsonserver with JSONViews is available (ATM) only on z3labs svn:

http://codespeak.net/svn/z3/jsonserver/trunk

For more information the README (ftest) is at 
http://codespeak.net/svn/z3/jsonserver/trunk/JSONViews.txt .

This is new code, so comments/suggestions are welcome.

-Jim Washington