A MilvusClient interface. This method drops a role.

Note: Drops the role from Milvus. It succeeds if the role exists, otherwise fails.
R<RpcStatus> dropRole(DropRoleParam requestParam);


Use the DropRoleParam.Builder to construct a DropRoleParam object.

import io.milvus.param.DropRoleParam;
DropRoleParam.Builder builder = DropRoleParam.newBuilder();

Methods of DropRoleParam.Builder:

withRoleName(String roleName)Sets the role name. The role name cannot be empty or null.roleName: The role name used to create the privilege.

The can throw the following exceptions:

  • ParamException: Prompts an error if the parameter is invalid.


This method catches all the exceptions and returns an R object.

  • If the API fails on the server side, it returns an error code and an error message.
  • If the API fails due to RPC exceptions, it returns R.Status.Unknown and error message of the exception.
  • If the API succeeds, it returns R.Status.Success.


import io.milvus.param.DropRoleParam;

R<RpcStatus> response = client.dropRole(DropRoleParam.newBuilder()

if (response.getStatus() != R.Status.Success.getCode()) {
    throw new RuntimeException(response.getMessage());