Response writer

The user who is searching is mainly interested in the search output/response. Rather than providing output in only a single format, if we allow them to select their choice of output/response format and return a response in that format, it will really make the user happy. The good news is that Solr provides various response writers for the end user's convenience.

Once the user runs a search, along with providing matching results, Solr provides a formatted and well-organized output result that becomes easy and attractive for the end user. Solr handles this through a response writer. Solr supports these response writers:

• JSON (default)
• Standard XML
• XSLT
• Binary
• GeoJSON
• Python
• PHP
• PHP serialized
• Ruby
• CSV
• Velocity
• Smile
• XLSX

We can select the response writer by providing an appropriate value to the wt parameter. These are the response writer values for wt:​

Response writer	wt parameter value
JSON	json
Standard XML	xml
XSLT	xslt
Binary	javabin
GeoJSON	geojson
Python	python
PHP	php
PHP serialized	phps
Ruby	ruby
CSV...