hasCollection()

This operation checks whether a specific collection exists.

hasCollection(data): Promise<BoolResponse>

Request Syntax

milvusClient.hasCollection({ 
    db_name: string,
    collection_name: string,
    timeout?: number
})

PARAMETERS:

• db_name (str) -

  The name of the database that holds the target collection.

• collection_name (str) -

  [REQUIRED]

  The name of a collection.

• timeout (number) -

  The timeout duration for this operation.

  Setting this to None indicates that this operation timeouts when any response returns or error occurs.

RETURNS Promise<BoolResponse>

This method returns a promise that resolves to a BoolResponse object.

{
    value: boolean,
    status: object
}

PARAMETERS:

• value (string) -

  A boolean value indicating whether the specified collection exists.

• status (object) -

  • code (number) -

    A code that indicates the operation result. It remains 0 if this operation succeeds.

  • error_code (string | number) -

    An error code that indicates an occurred error. It remains Success if this operation succeeds.

  • reason (string) -

    The reason that indicates the reason for the reported error. It remains an empty string if this operation succeeds.

Example

const milvusClient = new milvusClient(MILUVS_ADDRESS);
const res = await milvusClient.hasCollection({ collection_name: 'my_collection' });