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Add PATCH Method for Adding/Removing Members to a Group
Today, if you want to modify a groups membership via our REST API, you need to use a PUT method which requires you to post all members of the group back to the system not just the ones that have changed. If you are modifying a group multiple times simultaneously, this will cause race conditions and ultimately inconsistencies in the group.
For example, consider the following:
- Two scripts kick off to each add a different new member to a group
- Each script makes a GET call to get current members of the group each receiving the same list of members
- Each script then modifies their DTO request to include their new member; the original list plus their new member but not the new member of the other script
- Both make a PUT call to add their member; whichever one finishes last "wins" and the group's membership will include the original members plus the one additional member
With a PATCH method the API would only require the member(s) being added or removed preventing a "last wins" scenario.
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