[keycloak-user] Passing an array of user realm roles in a Token Mapper

Hi, I have been using the Token Mappers within a Client to map a set of Keycloak Group Memberships into an attribute in the Token, so the client application can grant appropriate access based on this. The groups are coming through as an array in the token, which works nicely. I wanted to switch to using a "User Realm Role" mapper instead of "Group Memberships" because I can then set up automatic realm roles based on the identity source, which I can't do with Groups. My problem is, when I create a new User Realm Role mapper in the Client definition, the only types I can specify for the field are String, long, int or boolean. If I choose String, the list of roles comes through as a comma-separated String rather than an array in the JSON object. I'd rather not update all my clients to parse this - is there any way of getting keycloak to return the roles as an array rather than a string? Is this against the spec, or is there some other limitation I am not aware of that prevents this? Thanks, Adam.? Adam Hatherly Senior Technical Architect Central Architecture Service NHS Digital adam.hatherly@nhs.net<mailto:adam.hatherly@nhs.net> 0113 397 4164 07920 861 737 ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSi recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.nhsdigital.nhs.uk/nhsmail ********************************************************************************************************************