Etag (Entity Tags) for Hypertext Transfer Protocol as defined in RFC 2616 Etag is useful for checking whether an Entity has changed since you last read.

HTTP Header Field[1]#

Etag HTTP Header Field in a response provides the current entity-tag for the selected representation, as determined at the conclusion of handling the request. An entity-tag is an opaque validator for differentiating between multiple representations of the same resource, regardless of whether those multiple representations are due to resource state changes over time, content negotiation resulting in multiple representations being valid at the same time, or both. An entity-tag consists of an opaque quoted string, possibly prefixed by a weakness indicator.

SCIM Read Request#

Etag may be used in SCIM Resource Operations


Etag is useful for checking whether an entry has changed since you last read it from the directory. Etag is often a Directory Operation Virtual Attribute.

Attribute Definition#

The Etag AttributeTypes is defined as:

More Information#

There might be more information for this subject on one of the following:
  • [#1] - ETag - based on information obtained 2018-03-25-