The Collections API manages Fusion collections. It provides endpoints for creating, updating, and deleting collection, as well as endpoints for getting a collection’s status and usage statistics. Fusion maintains internal system collections for logs, blobs, and metrics data which operate in conjunction with collections created by users. The Collections API is used to manage all Fusion collections. For more information, view the API specification.

​
Examples

In order to see this object within the Fusion UI, it must be associated with an app. To do this, create the object using the /apps endpoint.
Create a new collection called ‘newCollection’, with appropriate SolrCloud environment settings: REQUEST 
curl -u USERNAME:PASSWORD -X POST -H 'Content-type: application/json' -d '{"name": "newCollection","solrParams":{"replicationFactor":1,"numShards":1}}' https://FUSION_HOST:FUSION_PORT/api/collections
RESPONSE 
{
  "id" : "newCollection",
  "createdAt" : "2014-09-19T18:46:52.954Z",
  "searchClusterId" : "default",
  "solrParams" : {
    "name" : "newCollection",
    "numShards" : 1,
    "replicationFactor" : 1
  },
  "type" : "DATA",
  "metadata" : { }
}
Create a collection named ‘local-collection1’ that refers to ‘collection1’ in a pre-existing SolrCloud cluster named ‘Solr4.10’: REQUEST 
curl -u USERNAME:PASSWORD -X POST -H 'Content-type: application/json' -d '{"id":"local-collection1", "searchClusterId":"Solr4.10", "solrParams":{"name":"collection1"}}' https://FUSION_HOST:FUSION_PORT/api/collections
RESPONSE 
{
  "id" : "local-collection1",
  "createdAt" : "2014-09-19T18:48:45.396Z",
  "searchClusterId" : "Solr4.10",
  "solrParams" : {
    "name" : "collection1"
  },
  "type" : "DATA",
  "metadata" : { }
}
Delete a collection, but keep the associated signals and searchLogs collections: REQUEST 
curl -u USERNAME:PASSWORD -X DELETE https://FUSION_HOST:FUSION_PORT/api/collections/newCollection?purge=false
Get the status of the ‘demo’ collection: REQUEST 
curl -u USERNAME:PASSWORD https://FUSION_HOST:FUSION_PORT/api/collections/demo/status
RESPONSE 
{
  "maxShardsPerNode" : 1,
  "replicationFactor" : 1,
  "shards" : {
    "shard1" : {
      "range" : "80000000-7fffffff",
      "state" : "active",
      "replicas" : {
        "core_node1" : {
          "state" : "active",
          "core" : "demo_shard1_replica1",
          "leader" : true,
          "base_url" : "https://FUSION_HOST:8983/solr",
          "node_name" : "FUSION_HOST:8983_solr"
        }
      }
    }
  }
}
Get stats for the ‘demo’ collection: REQUEST 
curl -u USERNAME:PASSWORD https://FUSION_HOST:FUSION_PORT/api/collections/demo/stats
RESPONSE 
{
  "collectionId" : "demo",
  "documentCount" : 536,
  "requestCount" : 6,
  "qps" : 28.34716542561849,
  "sizeInBytes" : 7646045,
  "lastModified" : "2014-05-19T19:58:33.545Z"
}
Add the recommendations feature for the ‘tempy’ collection:
For more information on collection features and feature management, see Collection Features API
Use this structure to send the request: 
https://FUSION_HOST:FUSION_PORT/api/collections/{collection}/features/{feature}

curl -u USERNAME:PASSWORD -X POST -H 'Content-type: application/json' -d @enable-recommendations.json https://FUSION_HOST:FUSION_PORT/api/apps/Recommender-App/collections/tempy/features/recommendations -v
Make sure to change the collection-id in the JSON and save as a file or send directly in the string. Recommendations JSON: 
{
"name": "recommendations",
"collectionId": "tempy",
"params":

{ "idField": "id", "itemsForUser": true, "itemsForQuery": false, "itemsForItem": true, "queriesForQuery": false }
,
"enabled": true
}
Signals JSON: 
{
"name": "signals",
"collectionId": "tempy",
"params": {},
"enabled": false
},
Search Logs JSON: 
{
"name": "searchLogs",
"collectionId": "tempy",
"params": {},
"enabled": false
}
Partition by time JSON: 
{
"name": "partitionByTime",
"collectionId": "tempy",
"params": {},
"enabled": false
}