Java client SDK - Evaluate boolean flag using object with list

[cristianonicolai]

Hi, Im looking to build a boolean flag evaluation using fliptClient.evaluateBoolean but the context object is a Map<String, String>. How can I pass a list, for instance roles, where I would send a list of string containing all user roles to help with the evaluation?
Thanks

[dosubot[bot]]

The Java Flipt client SDK expects the context for flag evaluation to be a Map<String, String>, so it doesn't directly support passing a list (like roles) as a value. A common workaround is to encode your list as a single string—typically a comma-separated list, for example: context.put("roles", "admin,user,editor"). You can then write your flag targeting rules to parse or match against this string as needed. There isn't built-in support for lists or arrays in the context object in the current SDK or its documentation, and this approach is reflected in the official usage examples as well cite.

To reply, just mention @dosu.

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[erka]

It’s the Flipt API. The context is defined as a map[string]string by design. There have been some discussions about this, but no great solution has emerged so far. I know this can be tricky to manage, but Dosubot’s suggestions seem like a good place to start.