enable to update the catalog item field using Server script

[String]

Hi Team ,

am using server script to update the multi row variable set field by using below syntax 

g_form.setValue('amount', '200');

but enable to update ,

Please guid me 

[Prince Arora]

@String ,

You need to do something like mentioned below:
This is a sample script not exact scenario please modify your code according to mention script below:

Client SIde:

var inputs = {
"shipid" : $scope.page.g_form.getValue(shipid');,
"billto" : $scope.page.g_form.getValue(billto');
}
c.server.get(inputs).then(function(resp){
var resp = JSON.parse(resp);
$scope.page.g_form.setValue('amount',resp.amount);
$scope.page.g_form.setValue('quantity',resp.quantity);
})

Server Side:

if(input){
var billto = input.billto;
var shipid = input.shipid;

//make API call by passing the variables

//parse the data and return the output as json as

var result = {"id":"xxx" , "amount":"123","quantity" : "12"};

return JSON.stringify(result);
}

If my answer solved your issue, please mark my answer as ✅Correct & 👍Helpful based on the Impact!

[String]

@Prince Arora 

just to understand the flow I have hard coded the result to 200  and trying to update the form ,but not working 

Please guide 

[Prince Arora]

@String ,

Please replace your previous code and modify according to my recent reply and write the c.server.get code in the button $scope.clickmethod

If my answer solved your issue, please mark my answer as ✅Correct & 👍Helpful based on the Impact.

[String]

@Prince Arora 

client controller :

api.controller = function($scope) {

    /* widget controller */

    var c = this;

    // $scope.clickMethod = function() {

    $scope.clickMethod = function() {

        c.data.shipto = $scope.page.g_form.getDisplayValue('shipto');

        c.data.billto = $scope.page.g_form.getDisplayValue('billto');

        alert("ship" + $scope.page.g_form.getDisplayValue('shipto'));

        var mrvs = $scope.page.g_form.getDisplayValue("IO:6390228f1b306d1009952f02604bcb2b"); //We can access the MRVS values via getValue, using the "IO:" prefix, followed by the MRVS sys_id

        var objList = JSON.parse(mrvs);

        var objMRVS = JSON.parse(mrvs);

        c.data.mrvs = objMRVS;

        c.server.update();

c.server.get(inputs).then(function(resp) {

        alert("end"+resp);

        var resp1 = resp;

        $scope.page.g_form.setValue('amount', resp1);

        //$scope.page.g_form.setValue('quantity',resp1.quantity);

    });

    };

};

server script :

(function() {

    /* populate the 'data' object */

    /* e.g., data.table = $sp.getValue('table'); */

    if (input && input.shipto && input.billto) {

     var vUtil = new global.GetPriceUtilities(); //script include 

     vUtil.checkPrice(input.shipto, input.billto, input.mrvs);

       var result='200';

//return JSON.stringify(result);

return result;

}

})();

is am doing in rit way ?