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You can allow or prevent the generation of entity tags (etags) for static Web content using the enable_etags
keyword in the .xsaccess file. Etags are used to improve caching performance, for example, so that the
same data is not resent if no change has occurred since the last request.
● MIME Mapping
MIME means Multipurpose Internet Mail Extensions. You can use the mime_mapping keyword in
the .xsaccess file to define the way in which to map certain file suffixes to required MIME types:
"mime_mapping": [ {"extension":"jpg", "mimetype":"image/jpeg"} ]
The Application-Access (.xsaccess) File
The following example, shows the composition and structure of the SAP HANA XS application access
(.xsaccess) file. In this file, data is available to client requests. The authentication methods specified are
SAP logon ticket and then, as a fall-back option if the logon with the SAP logon ticket fails, a logon with a
user name and password. Allowing a fall-back log-on mechanism is useful if the requesting client has
problems handling the SAP logon ticket mechanism.
{
$3"
}
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"exposed" : true, // Expose data via http
"authentication" : // Authentication method
[
{
"method": "LogonTicket",
},
{
"method" : "Basic"
},
],
"authorization": // Grant package privileges
[
"sap.xse.test::Execute",
"sap.xse.test::Admin"
]
"rewrite_rules" : // URL rewriting rules
[
{
"source": "/entries/(\\d+)/(\\d+)/(\\d+)/",
"target": "/logic/entries.xsjs?year=$1&month=$2&day=
}
],
"mime_mapping" : // Map file-suffix to MIME type
[
{
"extension":"jpg", "mimetype":"image/jpeg"
}
],
"force_ssl" : true, // Refuse request if not SSL
"enable_etags":false // Prevent etag generation
http://help.sap.com/hana/hana_admin_en.pdf
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SAP HANA Developer Guide
Setting Up Your Application