Webhooks & SAP Cloud application studio

[solene_roques]

Hello all,

I would like to integrate webhooks generated by an external application into ByDesign through SAP Cloud Application Studio (ByDesign or C4C). If anyone has already made it, could you give me an overview of what elements are needed please ?

My external application can generate html POST webhooks or SOAP webhooks. As far as I know, like the x-csrf-token is needed for POST OData action, my only option is to integrate SOAP webhooks.

Thanks for your help,

Best regards

[thiago]

Hello Sonène,

We are going to release blog posts related to event-driven architecture in a weekly basis, discussing concepts, delivering tutorial videos, sharing code and more.

This is the first of the series: https://blogs.sap.com/2020/10/09/how-to-get-sap-business-bydesign-events-in-a-loosely-coupled-soluti...

Best,
Thiago.

[jravnik]

Dear Solène,

the two possibilities to make a custom inbound interface are OData or SOAP.

For OData you will need to create a Custom Business Objekt in SDK and create an OData service in the admin work center within ByD. For the POST request you will need to use the x-csrf-token header, it will not work without. Also the JSON/XML you are receiving needs to have the compatible format (standard OData).

For SOAP you will also need to create a Custom Business Object in SDK and create a inbound service in SDK too. With that and the corresponding communication agreement you can create the necessary request from the WSDL. This also implies that the 3rd party can send a valid SOAP request which fits the schema of the WSDL.

Unfortunately there is no way to define some kind of "freestyle" endpoint which can receive and work with any kind of data structure.

Best regards
Jürgen

[solene_roques]

Dear Jürgen,

Thanks for this summary.

In my case, the 3rd party can not manage x-crsf token, so OData is excluded.

In the SOAP scenario, the service is already created by the 3rd party (standard on their side). I created an External webservice integration based on the wsdl provided by the 3rd party (and the communication agreement). But what should be done regarding the custom BO ? How can I create a BO that will perfectly fit the data given by the message ?

Thanks, best regards

[jravnik]

Dear Solène,

for the inbound communication via SOAP you have to create a Custom BO in the SDK. For that BO you will define a Web Service: https://help.sap.com/viewer/cbcebe3cfb1647a8b0322c18dbb0b481/2020.08/en-US/74f86f6073e210149e3fd0678...

That means that the WSDL will be generated by the SDK, which you cannot manipulate in any way.

So your 3rd Party must work with the WSDL generated by the SDK. You cannot use their WSDL as an inbound service definition.

Best regards
Jürgen

[solene_roques]

Dear Jürgen,

Thanks for this answer. Thus, in a situation like mine where : the 3rd party has deployed two web-hooks methods : POST and SOAP standards on their side and non-customizable, we are not able to integrate webhooks into ByD.

Sad situation because webhooks are quite useful.

Thanks,

Best regards,