How to pass large number of parameters from Angular js to rest service

Question

I am trying to fetch parameters from angular JS $http service to rest service using ** @queryParam** . I need to fetch lot of parameters(below have shown for 3 as an example ,but I need to use around 12-15 of them which I need to pass to the java side) ,so fetching all with @QueryParam makes the code look pretty bad .I am using GET .

How can I optimize this ?

Example what I am doing -

Angular Js code -

$http({
    url: someUrl, 
    method: "GET",
    params: {filter1: $scope.filter1,
filter2:$scope.filter2,
filter3:$scope.filter3
 });

Java side -

@path("/getAllData")
@GET
@Produces({..}
public response getAllData(@QueryParam("filter1") final String filter1,
                           @QueryParam("filter2") final String filter2,
                           @QueryParam("filter3") final String filter3){
}

Also ,wanted to know the optimization in case when I am building URL instead of params object, and picking the same with @PathParam

$http.get('rest/test/getAllData/?filter1='$scope.filter1 + 
           '&filter2='$scope.filter2 + '&filter3='$scope.filter3 + 
           '&filter4='$scope.filter4)

I am able to do it by passing individually in @QueryParam . I am looking for optimized code when we a large number of parameters.

Answer 1

Create a POJO with all the required parameters.

In angular, do this

var obj = {};
obj.filter1 =  $scope.filter1;
obj.filter2 =  $scope.filter2;
obj.filter3 =  $scope.filter3;


$http({
    url: someUrl, 
    method: "GET",
    params: obj
});

You can accept all the parameters in you rest like this -

@path("/getAllData")
@GET
@Produces({..}
public response getAllData(MyPojo obj){
  //String filter1 = obj.filter1;
}

Answer 2

You can do it in 2 ways:

1) org.json.simple.JSONObject .

2) Bean or POJO Class.

AngularJS Controller:

var URL = appURL+'/adm/addCollProcess.do';
var json = {"col_pro_id":$scope.col_pro_id, "col_code": $scope.col_code, "exam_type_ids": $scope.exam_types.toString().replace("[","").replace("]",""), 
    "created_by" : "admin", "file_path" : $scope.file_path, "website" : $scope.website, "facebook" : $scope.facebook};

// using JSONObject
$http.post(URL, json).then(function(response){
    if(response.data){
       // Code
    }
});

// using Bean Class
 $http.post(URL, JSON.stringify(json)).then(function(response){
    if(response.data){
       // Code
    }
});

Java Controller:

// using JSONObject
@RequestMapping(value="/addCollProcess.do", method=RequestMethod.POST)
public boolean addCollProcess(@RequestBody JSONObject json){
    // Code
}

// using Bean Class:
@RequestMapping(value="/addCollProcess.do", method=RequestMethod.POST)
public @ResponseBody boolean addCollProcess(@RequestBody AdmissionProcessBean processBean) {
    // Code
}