although I was surprised about the reported execution times at that time
Yes my test was a bit harsh :-) ab -n 100 -c 10 http://localhost:8984/bsp/simple Is 100 requests as fast as possible with 10 concurrent. I also had nearly 2Mb of parser code in XQuery generated by REX [1] just in one app.
Thanks for the tips. /Andy
[1] http://www.bottlecaps.de/rex/
On 7 May 2014 11:24, Christian Grün christian.gruen@gmail.com wrote:
However one thing to be aware of with the current implementation is that response times depend on the quantity of XQuery code defined, making
large
applications problematic. This was mentioned in Christian's recent
"Upcoming
features" email, so I am sure it will be addressed soon.
I agree with Andy (although I was surprised about the reported execution times at that time). In one of our projects, we now have around 500 KB of XQuery code, and the constant overhead for evaluating a single REST request is about 40 ms - which may be too slow if you have lots of requests per seconds.
However, if you encounter bottlenecks, there are already various ways to improve performance (all of them undocumented, I guess - once again, Wiki edits are welcome..):
- Move all XQuery modules without RESTXQ annotations into your
repository ("repo" directory) [1]. This can be done manually (there is no need to use the REPO commands), and you can edit XQuery modules directly in your repo directory.
- Only keep those XQuery modules in your restxq directory which are
required in your project.
The reason is that the restxq directory is scanned for changes every time a new request takes place. We think about introducing a RELEASE mode in a future version, in which various checks will be skipped that are required during the development stage.
Hope this helps, Christian
[1] http://docs.basex.org/wiki/Repository
Hello Yoann,
You do not "need to do so", but I remember your project quite well and I was one of the people who said you don't actually need PHP. From what I saw and remember, I think RestXQ is simply a much better fit.
RestXQ enables you to do complete server-side processing (just like PHP does) using XQuery. You can define all sorts of options for your functions using annotations and how it should be served to your users.
Theoretically, this would also be possible using Rest. However, the Rest interface is more intended for short queries and querying on a data set. You will always have to submit your query and of course this is very impractical and slow if you develop a whole web app. But it might be a good idea to add something to the documentation to make the distinction between rest and RestXQ clearer. So much we could add to the docs, actually... :)
Cheers, Dirk
On 07/05/14 10:44, Yoann Maingon wrote:
Thx
I look into the provided example. At first I was more going into Rest and not RestXq, but if I need to do so then I guess I need to spend some time on it. Open sourcing our projects is a good question. I still have some colleagues affraid to somehow loose what they've developped and I don't have a clear opinion about it. But I'd be happy to share code (you may regret it! I'm a bad developper !)
*Cordialement / Best Regards,*
*Yoann Maingon* Minerva France
*+33 6 64 32 49 66*
Download Aras Innovator - Téléchargez Aras Innovator<
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2014-05-07 10:18 GMT+02:00 Dirk Kirsten dk@basex.org:
Hi,
I agree with Max that it would be a good idea to have a list of projects and examples, which are build on top of BaseX. A problem might be
that
many applications which are build on top of BaseX are not open
source.
@Yoann: Please be aware that there is a Rest and RestXQ
implementation
within BaseX, which are quite different. What you most likely want to use is RestXQ. Some documentation is available at https://docs.basex.org/wiki/RESTXQ Using RestXQ itself, there is an example for a blog at https://github.com/siserle/blog-example
As Max already suggested, the main difference when you use it with angular or some other framework is that you most likely want to
return
JSON, so you have to change the output method.
Cheers, Dirk
On 07/05/14 09:34, Maximilian Gärber wrote:
Hi Yoann,
I guess having examples like these would be helpful in general. Together with basex, we built a larger project for managing
conference
registrations etc. last year. I could extract some of the modules - maybe we could manage to publish them on some github repo or a dedicated site? @basex: maybe it is time for a basex contrib page?
What you need, is some json endpoint which leverages the session module, checks the credentials and returns some json back to Angular (or JQuey)
Besides that, you need to secure all your restxq endpoints with a authentication check:
if(not(session:logged-in())) then web:redirect($C:START-PAGE)
else
_:do-something-useful()
Login example:
import module namespace session = "http://basex.org/modules/web/session
";
declare %restxq:path("/api/login/check") %restxq:POST("{$content}") %output:method("json") %output:json("lax=yes") function _:check( $content as item()* ) { let $user := $content//u/string() let $pass := $content//p/string()
let $ok := _:check-user($user, $pass)
if ($ok) then let $user-id := session:id() let $role := session:role() return((), <json objects="json"> <url>{_:redirect-url-from-role($role)}</url> </json> )else <json objects="json"> <error>Login failed.</error> </json> };
angular.module('login', []) .config([ '$routeProvider', function ($routeProvider) { $routeProvider.when('/Logout', { redirectTo: '/restxq/logout' }); }])
.controller('LoginCtrl', [ '$scope', '$http', '$location', function ($scope, $http, $location) { $scope.login = function() { var url = '/restxq/api/login/check';
//use jquery here, because angular does not detect auto-filldata var payload = { u: $('#u').val(), p: $('#p').val() };
$http.post(url, payload). success(function(data) { if (data.error) { // trigger error status $scope.loginForm.$error.failed = true; } else { // redirect window.location.pathname = data.url; } }). error(function(data, status, headers, config) { alert("Could not load data from server.") }); };}]);
<div class="row" ng-controller="LoginCtrl"> <div class="span6 offset3"> <h2 class="alumni-name">Please Login</h2>
<div class="alert alert-error"ng-show="loginForm.$error.failed"> <p> Incorrect login data. Please try again. </p> </div> <form name="loginForm"> <table cellpadding="3"> <tr> <td>Username  </td> <td><input type="text" name="u" id="u" ng-model="user" style="width:146px !important;margin:0"/></td> </tr> <tr> <td>Password   </td> <td><input id="p" name="p" ng-model="password" style="width:146px !important;margin:0" type="password" /></td> </tr> <tr> <td/> <td><button ng-click="login()" class="btn" style="width:152px !important;margin:0">Login</button> </td> </tr> </table>
</form> </div> </div>Regards,
Max
2014-05-07 1:38 GMT+02:00 Yoann Maingon yoann.maingon@mydatalinx.com: > Hi, > > After xmlprague and my presentation at the BaseX user group I was > told
(and
> I agree) that it wasn't really smart to use php for what I was > building
as
> it had almost no added value as I could directly query basex using > the
Rest
> Interface. > > Does anyone as some example using either angularjs or jquery ? I > think
I'm
> struggling with the login. Even just trying with a Rest test tool,
I
can see
> that I have error messages in Basex telling me theat access was > refused. > > > Yoann Maingon > CEO - mydatalinx > +33664324966
-- Dirk Kirsten, BaseX GmbH, http://basex.org |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22
-- Dirk Kirsten, BaseX GmbH, http://basex.org |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22