Your screenshot does not show how you are preparing the payload of the service node call. Please refer to “Working with service node” in our documentation. You can use this node when you have collected the parameters needed for the API request using Entity or other nodes to capture the user input.
It is further explained in the documentation that you need to refer to captured entities or context variables as the following:
- In the second field of the Request URL , specify the URL for the Dialog task response to process at Kore.ai, for example, http://koremessenger.com/postURL. Add query or path parameters as part of the URL, if required. To use Entity node values as parameters, use the following syntax for accessing the
Contextobject: https://myDomain.com/`{{context.entities.topic}}for thecontext.entities.topic. You must use the double brackets{{ context.object }}` . For more information, see the Context Object.
Hope this helps.