doc/developer-guide/api/functions/TSHttpTxnServerReqGet.en.rst

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   License, Version 2.0 (the "License"); you may not use this file
   except in compliance with the License.  You may obtain a copy of
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.. include:: ../../../common.defs

.. default-domain:: c

TSHttpTxnServerReqGet
*********************

Synopsis
========

.. code-block:: cpp

    #include <ts/ts.h>

.. function:: TSReturnCode TSHttpTxnServerReqGet(TSHttpTxn txnp, TSMBuffer * bufp, TSMLoc * obj)

Description
===========

Get the request |TS| is sending to the upstream (server) for the transaction :arg:`txnp`.
:arg:`bufp` and :arg:`obj` should be valid pointers to use as return values. The call site could
look something like ::

   TSMBuffer mbuffer;
   TSMLoc mloc;
   if (TS_SUCCESS == TSHttpTxnServerReqGet(&mbuffer, &mloc)) {
      /* Can use safely mbuffer, mloc for subsequent API calls */
   } else {
      /* mbuffer, mloc in an undefined state */
   }

This call returns :c:macro:`TS_SUCCESS` on success, and :c:macro:`TS_ERROR` on failure. It is the
caller's responsibility to see that :arg:`txnp` is a valid transaction.

Once the request object is obtained, it can be used to access all of the elements of the request,
such as the URL, the header fields, etc. This is also the mechanism by which a plugin can change the
upstream request, if done before the request is sent (in or before
:c:macro:`TS_HTTP_SEND_REQUEST_HDR_HOOK`). Note that for earlier hooks, the request may not yet
exist, in which case an error is returned.