d9c7f9b7f0
* Include Respond Directives Examples for Java. * Include license on RespondWithDirectivesExamplesTest.
35 lines
1.3 KiB
ReStructuredText
35 lines
1.3 KiB
ReStructuredText
.. _-respondWithDefaultHeaders-java-:
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respondWithDefaultHeaders
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=========================
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Description
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-----------
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Adds the given HTTP headers to all responses coming back from its inner route only if a respective header with the same
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name doesn't exist yet in the response.
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This directive transforms ``HttpResponse`` and ``ChunkedResponseStart`` messages coming back from its inner route by
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potentially adding the given ``HttpHeader`` instances to the headers list.
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A header is only added if there is no header instance with the same name (case insensitively) already present in the
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response.
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See also :ref:`-respondWithDefaultHeader-java-` if you'd like to add only a single header.
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Example
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-------
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The ``respondWithDefaultHeaders`` directive is equivalent to the ``respondWithDefaultHeader`` directive which
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is shown in the example below, however it allows including multiple default headers at once in the directive, like so::
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respondWithDefaultHeaders(
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Origin(HttpOrigin("http://akka.io"),
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RawHeader("X-Fish-Name", "Blippy"))) { /*...*/ }
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The semantics remain the same however, as explained by the following example:
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.. includecode:: ../../../../code/docs/http/javadsl/server/directives/RespondWithDirectivesExamplesTest.java#respondWithDefaultHeaders
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See the :ref:`-respondWithDefaultHeader-java-` directive for an example with only one header.
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