Do you still have issue configuring the Restful resources as described above ?
I am still looking for a solution on this post. We have not been able to create a service connector to interact with multi-part form data.
Aree you still waiting on a resolution? Have you tried defining the field as the "attachment" type within the input to the service connector? if so, then the data will be sent as multipart/form-data in case you have other input fields as well.
Thanks Rich, for working with Informatica support and publishing the community article for the same.
PS: please find the solution for the same provided in community article Utilize Salesforce OAuth Refresh Token for Authentication