Error in extending application for SAP S/4HANA Cloud using CAP

[#1]

Hello Experts,

I am working on a CAP based project wherein I am consuming external services from S/4 HANA. I am able to retrieve the data from external services by using custom handlers in the js file.

However, my requirement is to create/post the data in the external service. Therefore, following the blog Extend CAP using cloud SDK, I have written the code as:

this.on('CREATE', WorkPackageCreateSet, async (req) => {
 try {
 const payload = buildAddressForCreate(req);
 const result = await WorkPackageSet
 .requestBuilder()
 .create(payload)
 .execute(sdkDest);
 return prepareResult(result);
 } catch (err) {
 req.reject(err);
 }
 });

const { WorkPackageSet } = require("@sap/cloud-sdk-vdm-commercial-project-detail-service");

const _prepareBody = (address) => {
 return {
 ProjectID: address.ProjectID,
 WorkPackageID: address.WorkPackageID,
 WorkPackageName: address.WorkPackageName,
 Description: address.Description,
 WPStartDate: address.WPStartDate,
 WPEndDate: address.WPEndDate,
 WorkPackageType: address.WorkPackageType
}

}
//create payload
const buildAddressForCreate = (req) => {
 const address = WorkPackageSet.builder().fromJson(_prepareBody(req.data));
 if (req.params[0]) {
 const { ProjectID } = req.params[0];
 address.ProjectID = ProjectID;
 }
 return address;
}

While posting the data, WorkPackageSet in buildAddressForCreate is appearing undefined. Although I have installed all the dependencies, I am getting the below issue:

[cds] - POST /masterdata/WorkPackageCreateSet

[INTERNAL ERROR] TypeError: Cannot read property 'builder' of undefined

If anyone has worked on any such scenario or if I am missing something, Please suggest.

Regards,

Navneet Kaur.

[Junjie · Accepted solution]

Hi Navneet Kaur,

I guess you should use "WorkpackageSet" (with the "p" in lower case) instead of "WorkPackageSet".

You can always find the proper class name by checking the installed packages in the "node_modules".

Please feel free to create an issue here next time for the SAP Cloud SDK for JavaScript as an official support channel.

BR,

Junjie

[Junjie · Accepted solution]

Hi nkaur06,

if my answer solves your issue. Please accept it. Thank you.