Question Re: CAP action doesn't return data properly when called u... in Technology Q&A

CAP action doesn't return data properly when called using a custom action

David21 — Wed, 30 Apr 2025 21:44:36 GMT

Hello everyone,

I'm using CAP(Node.js) with Fiori elements. I have a cap action that returns a string :

this.on('CapAction', entity, async req => {

return "TEST"

});

I have also added a custom action using extension point & my requirement is such that i need to call the CAP action when the user click on custom button. Custom action's handler look like this :

Now the the CAP action handler is being called and in the network tab of developer tools it's returning :

HTTP/1.1 200 OK
odata-version: 4.0
content-type: application/json;odata.metadata=minimal

{"@odata.context":"../$metadata#Edm.String","value":"TEST"}

But inside my custom handler the result variable shows :

d {oModel: T, sPath: '/TestService(ID=6f76d291-9e2e-423a-bd16-1c7b7…true)/TestService.CapAction(...)', bForceRefresh: false, sDeepPath: '', oBinding: c, …}

And the string "TEST" isn't being returned anywhere in this object. Any ideas how i can get the returned value ?

Re: CAP action doesn't return data properly when called u...

Willem_Pardaens — Thu, 01 May 2025 04:31:16 GMT

The return value of the 'invokeAction()' function is an ODataV4Context on which the 'getObject()' function will return the data object.

See: https://sapui5.hana.ondemand.com/1.135.0/#/api/sap.ui.model.odata.v4.Context%23methods/getObject

So in your code you can do

this.editFlow .invokeAction(sActionName, oParameters) .then(result => { const data = result?.getObject() console.log(data?.value) }

Re: CAP action doesn't return data properly when called u...

David21 — Thu, 01 May 2025 11:23:08 GMT

Appreciate the answer