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Support Article

getGadgetData always returns undefined when using Mashup



getGadgetData always returns 'undefined'. Mashup is used to retrieve data from DataField in PRPC content using getGadgetData.

Code examples,

var firstName = pega.web.api.doAction("GCSTestDataBind", "getGadgetData", "[gadget/GCSTestDataBind/OperatorID.pyFirstName]");
var createOpName = pega.web.api.doAction("GCSTestDataBind", "getGadgetData", "[gadget/GCSTestDataBind/.pxCreateOpName]");

Syntax is as defined according to the PDN article:

Application record has the correct host names set in Mashup security section.

Error Messages

Not Applicable

Steps to Reproduce

  1. Configure the Simple Gadget: CreatNewWork - PegaSample-Task - BasicProcess
  2. Set the Data Fields present in New harness: OperatorID.pyFirstName
  3. Set the Data Fields present in Resolve Flow Action: .pxCreateOpName
  4. Use Mashup to retrieve data from DataField in PRPC content using getGadgetData

Root Cause

The PDN documentation listed above is incorrect.


The use of getGadgetData requires the usage of a callback function:

pega.web.api.doAction("GADGETNAME", "getGadgetData", "[PropertyRefence]" {callback:function(){},scope:scope});

For example,
function getTheGadgetData(){
pega.web.api.doAction("GCSTestDataBind", "getGadgetData", "OperatorID.pyFirstName", {callback:callBackForFirstname});
function callBackForFirstname(rtnValue)
alert("return value: " + rtnValue);

Additionally, as of Pega 7.2.1, DataField controls are no longer used for getGadgetData. Instead use a simple hidden input element using the control, Hidden Input.

Published October 25, 2017 - Updated October 8, 2020

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