CAP - JAVA Actions and Functions

[FatihOrnek]

Hi,

This is how I defined action.

When I trigger it via Business App Studio, it keeps asking for username password. Where could it be wrong?

I am testing the example below.

I am referring to URL:

https://cap.cloud.sap/docs/java/provisioning-api#implementing-event-handlers

Please get back to me on the following feedback:

[marcbecker]

Hi,

can you please provide a little more context? How are you triggering the action? Can you please provide the request URL you are trying? With which parameters are you trying it?

Best regards,
Marc

[FatihOrnek]

Hi marcbecker ,

I have defined an cds entity as follows. There is an action named getUserInfo.

I open the test screen with terminal mvn clean spring-boot: run. I am sending parameters over the link as follows. But I'm getting an authorization error. There is a problem with the link I defined as action. Other service triggers work correctly and do not give authorization errors.

Sample EventHandler code.

     @On(event = "getUserInfo", entity = "SfapiService.SFUserInfo")
     public void getUserInfo(GetUserInfoContext context) {
        
        Integer stars = context.getId();
        SFUserInfoReviews inf = SFUserInfoReviews.create();
        inf.setId(stars);
      
        context.setResult(inf);
    }

[marcbecker]

The URL is not correct. Please have a look at the OData V4 specification on how to trigger actions: https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-protocol.html#_Toc31359014

First of all, Actions need to be triggered using a POST request, not a GET request. The parameters are provided in a JSON Map in the Body.

The action you have defined here is bound to the entity SFUserInfo, therefore the URL to the action should look like this:

/odata/v4/SfapiService/SFUserInfo(<ID>)/SfapiService.getUserInfo

If you don't want the action to be bound to an entity you should define an action directly in the service like outlined here: https://cap.cloud.sap/docs/cds/cdl#actions

In that case you also shouldn't provide an entity in your event handler registration.

[FatihOrnek]

Thanks, Marc. This method works fine.

[FatihOrnek]

Hi heli.heli ,

I used CDS custom actions and functions structure instead of Java.

Thanks.

[former_member138873]

Thank you for your answer.