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<html><head><meta charset="ISO-8859-1"><title>2.HTTP</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="YAZ User's Guide and Reference"><link rel="up" href="soap.html" title="Chapter6.SOAP and SRU"><link rel="prev" href="soap.html" title="Chapter6.SOAP and SRU"><link rel="next" href="soap.xml.html" title="3.SOAP Packages"></head><body><link rel="stylesheet" type="text/css" href="common/style1.css"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">2.HTTP</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="soap.html">Prev</a></td><th width="60%" align="center">Chapter6.SOAP and SRU</th><td width="20%" align="right"><a accesskey="n" href="soap.xml.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="soap.http"></a>2.HTTP</h2></div></div></div><p>
YAZ only offers HTTP as transport carrier for SOAP, but it is
relatively easy to change that.
</p><p>
The following definition of <code class="literal">Z_GDU</code> (Generic Data
Unit) allows for both HTTP and Z39.50 in one packet.
</p><pre class="synopsis">
#include <yaz/zgdu.h>
#define Z_GDU_Z3950 1
#define Z_GDU_HTTP_Request 2
#define Z_GDU_HTTP_Response 3
typedef struct {
int which;
union {
Z_APDU *z3950;
Z_HTTP_Request *HTTP_Request;
Z_HTTP_Response *HTTP_Response;
} u;
} Z_GDU ;
</pre><p>
The corresponding Z_GDU encoder/decoder is <code class="function">z_GDU</code>.
The <code class="literal">z3950</code> is any of the known BER encoded Z39.50
APDUs.
<code class="literal">HTTP_Request</code> and <code class="literal">HTTP_Response</code>
is the HTTP Request and Response respectively.
</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="soap.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="soap.html">Up</a></td><td width="40%" align="right"><a accesskey="n" href="soap.xml.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter6.SOAP and SRU</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">3.SOAP Packages</td></tr></table></div></body></html>
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