# Examples

This section gathers sample scripts using ZOO-API, the ZOO-Project server-side JavaScript API.

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

## ZOO.Process example

    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 example

    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).