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https://issues.apache.org/jira/browse/SOLR-7576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14564099#comment-14564099
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David Smiley commented on SOLR-7576:
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This duplicates SOLR-5005; but the approach appears a little different.
Perhaps you forgot about that issue? I admit I've been too busy to finish that
up; not that it doesn't work but could use more polish & tests.
> Implement RequestHandler in Javascript
> --------------------------------------
>
> Key: SOLR-7576
> URL: https://issues.apache.org/jira/browse/SOLR-7576
> Project: Solr
> Issue Type: New Feature
> Reporter: Noble Paul
> Attachments: SOLR-7576.patch
>
>
> Solr now support dynamic loading (SOLR-7073) of components and it is secured
> in SOLR-7126
> We can extend the same functionality with JS as well
> example of creating a RequestHandler
> {code:javascript}
> curl http://localhost:8983/solr/collection1/config -H
> 'Content-type:application/json' -d '{
> "create-requesthandler" : {"name": "jshandler" ,
> "class":"solr.JSRequestHandler,
> "defaults": {
> "js": "myreqhandlerjs", //this is the name of the blob in .system collection
> "version":"3",
> "sig":"mW1Gwtz2QazjfVdrLFHfbGwcr8xzFYgUOLu68LHqWRDvLG0uLcy1McQ+AzVmeZFBf1yLPDEHBWJb5KXr8bdbHN/PYgUB1nsr9pk4EFyD9KfJ8TqeH/ijQ9waa/vjqyiKEI9U550EtSzruLVZ32wJ7smvV0fj2YYhrUaaPzOn9g0="
> }
> }
> }'
> {code}
> To make this work
> * Solr should be started with {{-Denable.runtime.lib=true}}
> * The javascript must be loaded to the {{.system}} collection using the blob
> store API
> * Configure the requesthandler with the JS blob name and version
> * Sign the javascript and configure the signature if security is enabled
> The {{JSRequestHandler}} is implicitly defined and it can be accessed by
> hitting {{/js/<jsname>/<version>}}
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