[Geoserver-users] WPS Request - POST - not working

GeoServer GeoServer User
1

Hi everyone!

I need some help to build a client for geoserver wps…

Let me explain to you the whole context. I created a process that receives a common json string (CDATA) and… process it… (for now, it is just sending the json string back).

I could test the process using the WPS Request Builder interface, and it worked very fine =)

Now, I’m trying to develop a Javascript client to send a json string to this wps process and get the string back… but it’s not working =/

Here is what I’m doing:

var jsonDescription = JSON.stringify(array); //Parsing a javascript array to json string.
var wpsRequest = new WPSRequest(“http://localhost:8080/geoserver/wps”,“gs:MyProcess”,“execute”,“POST”,jsonDescription); //Object to define the request.
var wpsInput = wpsRequest.wpsInput(); //build the request using jsonDescription
wpsRequest.request(wpsInput); //Does the request…

Now, if you look inside my object:

//My object definition
function WPSRequest(url,process,processMethod, method, data){
this.urlRequest = url;
this.process = process;
this.processMethod = processMethod;
this.method = method;
this.data = data;
this.wpsInput = buildInput;
this.request = doRequest;
}

//function that does the request
function doRequest(input){

var urlreq = this.urlRequest;
var reqType = this.method;

alert(input);

$(function() {

//The request using jquery ajax:
$.ajax({
type: reqType, //POST
url: urlreq, //http://localhost:8080/geoserver/wps
data: input
}).done(function(result){
alert(result);
});

});
}

function buildInput(){

switch(this.processMethod){
case “execute”:
var wpsBody = “<?xml version=\"1.0\" encoding=\"UTF-8\"?>”

wpsBody = this.data;

return wpsBody;
break;
}
} //End of WPSRequest obj

When executing, I get the following error:

org.geoserver.platform.ServiceException: Could not determine geoserver request from http request org.geoserver.platform.AdvancedDispatchFilter$AdvancedDispatchHttpRequest@anonymised.com

Some details:

If I copy and paste the result of “alert(input);” (doRequest function) in Geoserver WPS Request Builder, the request works fine!

If I just change the URL from:
http://localhost:8080/geoserver/wps
to
http://localhost:8080/geoserver/ows?service=WPS&version=1.0.0&request=Execute&Identifier=gs:MyProcess
in my object definition, the request seens to work, once the error is: “Parameter jsonDescription is missing but has min multiplicity > 0”

I belive the second URL is a GET request, and, once the param is not in URL, the error is expected… this happens even if I keep the ajax type param = POST

The question is: Am I missing some thing to get the post request to work??

If someone knows a simple example showing how to do some request like this, it will help!

My next step will be to define a simple javascript ajax function to post to url http://localhost:8080/geoserver/wps

Any help will be appreciated!

Thanks!

–
Rodrigo C. Antonialli

Campinas - SP - Brasil
LinkedIn: http://www.linkedin.com/in/rcaprofile
Contato: (19) 8136-2347
rcantonialli@anonymised.com
Skype: rc_antonialli