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Document replacement for HttpServletRequest #5581

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Nov 19, 2019
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Document replacement for HttpServletRequest #5581

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11 changes: 11 additions & 0 deletions docs/src/main/asciidoc/rest-json.adoc
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Expand Up @@ -459,6 +459,17 @@ quarkus.resteasy.gzip.max-input=10M // <2>
<2> Configure the upper limit on deflated request body. This is useful to mitigate potential attacks by limiting their reach. The default value is `10M`.
This configuration option would recognize strings in this format (shown as a regular expression): `[0-9]+[KkMmGgTtPpEeZzYy]?`. If no suffix is given, assume bytes.

== Servlet compatibility

In Quarkus, RESTEasy can either run directly on top of the Vert.x HTTP server, or on top of Undertow if you have any servlet dependency.

As a result, certain classes, such as `HttpServletRequest` are not always available for injection. Most use-cases for this particular
class are covered by JAX-RS equivalents, except for getting the remote client's IP. RESTEasy comes with a replacement API which you can inject:
https://docs.jboss.org/resteasy/docs/4.4.1.Final/javadocs/org/jboss/resteasy/spi/HttpRequest.html[`HttpRequest`], which has the methods
https://docs.jboss.org/resteasy/docs/4.4.1.Final/javadocs/org/jboss/resteasy/spi/HttpRequest.html#getRemoteAddress--[`getRemoteAddress()`]
and https://docs.jboss.org/resteasy/docs/4.4.1.Final/javadocs/org/jboss/resteasy/spi/HttpRequest.html#getRemoteHost--[`getRemoteHost()`]
to solve this problem.

== What's Different from Jakarta EE Development

=== No Need for `Application` Class
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