When group have `events` in `challengeFilter`, call API with `events` instead `groupId`. Please ref. swagger file: https://github.com/topcoder-platform/challenge-api/blob/4a480a0e7c435a6e3d431fdfa03960bf3ce91455/docs/swagger.yaml#L184-L191 example: ``` "challengeFilter": { "events": ["tco21"] }, ```
When group have
eventsinchallengeFilter, call API witheventsinsteadgroupId.Please ref. swagger file: https://github.com/topcoder-platform/challenge-api/blob/4a480a0e7c435a6e3d431fdfa03960bf3ce91455/docs/swagger.yaml#L184-L191
example: