Update an entire resource collection in a REST way

Question

I have a REST URI for a list of resources, something like:

http://foo.com/group/users

Each of these users has a sequence number and I want

Answer 1

Semantically speaking, the HTTP PATCH method is the right way to go. This is also described in the currently chosen answer.

PATCH /group/users

[
    { "id": "userId1", "sequence": "newSequenceNumber1" },
    { "id": "userId2", "sequence": "newSequenceNumber2" },
    ...
]

However, the second method described in the chosen answer is not restful, because you invented new verbs inside a POST request. This is SOAP, not REST.