What should DELETE / collection do if some items cannot be deleted?

Question

I have a set of elements, and some of them may or may not be deleted, depending on some preconditions. If the user wants to delete the resource ( DELETE /collection/1) and there are external dependencies on this resource, the server will return an error. But what should happen if the user wants to delete the entire collection ( DELETE /collection)?

If all resources that can be deleted are deleted and the server returns 2xx, or should the server leave everything unchanged and return 4xx? What will be the expected behavior?

Answer 1

REST API, , , , 409 Conflict , . , DELETE , @jbarrueta.

, , , , , - 206 Partial Content ( DELETE, ) .

, , DELETE.

Answer 2

, - 409 - - ( ). .

, REST SOAP/RPC, . REST , HATEOAS, .

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Answer 3

, ( DELETE /collection/all DELETE/collection/),

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• -

, DELETE URL-,

- DELETE /collection/unused

ALL - DELETE /collection/all