SOLR-12224: Add APIs to read collection properties #4071
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API is available at: `GET /api/collections/collName/properties`
API available at: `GET /api/collections/collName/properties/propName`
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epugh
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Jan 22, 2026
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I did a quick skim and it looks good. Also just a nice PR to read, and maybe model other adding of APIs on!
HoustonPutman
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Perfect PR. No notes
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Might be good to have an API to update more than one value at once, but it doesn't have to be done here. |
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https://issues.apache.org/jira/browse/SOLR-12224
Description
Solr allows users to create collectionproperties with its
/admin/collections?action=COLLECTIONPROPAPI, but doesn't offer any API-based way to read these properties. Users are forced to use SolrJ's ZkStateReader to lookup the collection-properties, or connect to Zookeeper in some other way to read them.Solution
This PR introduces two new v2 endpoints that give users an API-centric way of reading these properties:
GET /api/collections/someCollName/propertiesto list all properties of a collection, andGET /api/collections/someCollName/properties/somePropNameto fetch specific properties by name.These new v2 APIs are implemented via JAX-RS, and appear in Solr's OpenAPI, meaning that they're now included in our SolrJ generation. SolrJ users can call these APIs with the SolrRequest classes
CollectionPropertiesApi.ListCollectionPropertiesandCollectionPropertiesApi.GetCollectionProperty.Tests
Added coverage for new "read" APIs in CollectionsAPISolrJTest, using the generated SolrRequest classes.
Checklist
Please review the following and check all that apply:
mainbranch../gradlew check.