Invoke CAP action as a webhook with mime type application/x-www-form-urlencoded

[mariusobert]

Hi team,

I was just trying to call an CAP action as a webhook that uses the mime type "application/x-www-form-urlencoded" and got the following error:

No payload deserializer available for resource kind 'ACTION_PARAMETERS' and mime type 'application/x-www-form-urlencoded'

It works with the exact same payload when I use application/json but I cannot really control how the webhook is triggered. The action is defined as follows:

 action restock( ![Body] : String, ![From] : String, .... );
  

And I'm using the following versions:

@sap/cds: 5.7.5
@sap/cds-compiler: 2.11.4
@sap/cds-dk: 4.7.3
@sap/cds-foss: 3.0.0
Node.js: v16.13.2
bookshop: 1.0.0

Can you confirm that this is intended?

[mariusobert]

iwona.hahn david.kunz2 Sorry to bother you, can you help me?

[david_kunz2]

Hi Marius,

We only support application/json to trigger actions.

But you can add a custom express middleware to handle the incoming request (though you'd loose all generic functionality we provide, e.g. authorization).

Is that an option for you?

Best regards,

[mariusobert · Accepted solution]

Thanks David. I'll go ahead and move the logic to a custom middleware then 🙂