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listCollections()

This operation lists all existing collections.

public ListCollectionsResp listCollections()

Request Syntax​

listCollections()

RETURN TYPE:

ListCollectionsResp

RETURNS:

A ListCollectionsResp object containing a list of collection names. If there is not any collection, an empty list will be returned.

PARAMETERS:

  • collectionNames (List<String>)

    A list of strings containing the names of all existing collections.

EXCEPTIONS:

  • MilvusClientExceptions

    This exception will be raised when any error occurs during this operation.

Example​

import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;
import io.milvus.v2.service.collection.response.ListCollectionsResp;

// 1. Set up a client
ConnectConfig connectConfig = ConnectConfig.builder()
        .uri("YOUR_CLUSTER_ENDPOINT")
        .token("YOUR_CLUSTER_TOKEN")
        .build();
        
MilvusClientV2 client = new MilvusClientV2(connectConfig);

// 2. List collections
ListCollectionsResp listAliasResp = client.listCollections();