Apache Solr Reference Guide Covering Apache Solr 6.0

Rollback Operations
The rollback command rolls back all add and deletes made to the index since the last commit. It neither calls any
event listeners nor creates a new searcher. Its syntax is simple: .
Using curl to Perform Updates
You can use the curl utility to perform any of the above commands, using its --data-binary option to
append the XML message to the curl command, and generating a HTTP POST request. For example:
curl http://localhost:8983/solr/my_collection/update -H "Content-Type: text/xml"
--data-binary '
Patrick Eagar
Sports
796.35
0002166313
1982
Collins
'
For posting XML messages contained in a file, you can use the alternative form:
curl http://localhost:8983/solr/my_collection/update -H "Content-Type: text/xml"
--data-binary @myfile.xml
Short requests can also be sent using a HTTP GET command, URL-encoding the request, as in the following.
Note the escaping of "":
curl http://localhost:8983/solr/my_collection/update?stream.body=%3Ccommit/%3E
Responses from Solr take the form shown here:
0
127
The status field will be non-zero in case of failure.
Using XSLT to Transform XML Index Updates
The UpdateRequestHandler allows you to index any arbitrary XML using the parameter to apply an XSL
transformation. You must have an XSLT stylesheet in the conf/xslt directory of your config set that can
transform the incoming data to the expected format, and use the tr parameter to specify
the name of that stylesheet.
Here is an example XSLT stylesheet:
Apache Solr Reference Guide 6.0
186