Examples

In this page you can find some small examples on how to use the JavaScript ZOO-API on the server side.

ZOO-API contains many classes and functions. You can find the description list here.

ZOO.Process example of use

function SampleService(conf,inputs,outputs){
   var myProcess = new ZOO.Process('http://localhost/cgi-bin-new1/zoo_loader_new1.cgi','Boundary');
   var myInputs = {InputPolygon: { type: 'complex', value: '{"type":"Polygon","coordinates":[[[-106.993853,35.998758],[-107.407233,35.997524],[-107.430525,35.997726],[-107.4824,35.99878],[-108.37013,35.999472],[-109.043633,35.996652],[-109.096265,35.997817],[-109.148763,36.001751],[-109.200981,36.008442],[-109.252775,36.017871],[-109.304,36.030014],[-109.354516,36.044835],[-106.468201,35.991497],[-106.855511,35.989504],[-106.90933,35.990676],[-106.963008,35.994743],[-106.993853,35.998758]]]}', mimeType: "application/json"} };
   var myExecuteResult=myProcess.Execute(myInputs);
   return {result: ZOO.SERVICE_SUCCEEDED, outputs: [ {name:"Result", value: myExecuteResult} ] };
}

In this really short example you can see how to create ZOO.Process class instance and call the Execute method on such an instance. Then you’ll just need to return a JavaScript object containing the attributes result and outputs, which I’m sure you already know what is about. The first is about the status of the process (can be ZOO.SERVICE_SUCEEDED, ZOO.SERVICE_FAILED and so on), the last is obviously the resulting maps (take a look at the maps internal data structure used by ZOO Kernel in service.h).

ZOO.UpdateStatus

function SampleLongService(conf,inputs,outputs){
   var my_i=0;
   while(my_i<100){
       try{
         conf["lenv"]["status"]=my_i;
       }
       catch(e){
       }
       ZOOUpdateStatus(conf,my_i);
       SampleService(conf,inputs,outputs);
       my_i+=10;
   }
   return SampleService(conf,inputs,outputs);
}

You can see in this sample code how to use the ZOOUpdateStatus function to update the current status of your running process. This information will be really helpfull when the ZOO Kernel will run your JavaScript Service in background mode (if the user set to true the storeExecuteResponse parameter in his request).