PUT request method creates a new resource or replaces a representation of the target resource with the request payload.
The difference between
POST is that
PUT is idempotent: calling it once or several times successively has the same effect (that is no side effect), whereas successive identical
POST requests may have additional effects, akin to placing an order several times.
PUT /new.html HTTP/1.1
PUT /new.html HTTP/1.1 Host: example.com Content-type: text/html Content-length: 16 <p>New File</p>
If the target resource does not have a current representation and the
PUT request successfully creates one, then the origin server must inform the user agent by sending a
HTTP/1.1 201 Created Content-Location: /new.html
If the target resource does have a current representation and that representation is successfully modified in accordance with the state of the enclosed representation, then the origin server must send either a
OK) or a
No Content) response to indicate successful completion of the request.
HTTP/1.1 204 No Content Content-Location: /existing.html
|HTTP Semantics |
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