# listUsers()

This operation lists the names of all existing users.

```java
public List<String> listUsers()
```

## Request Syntax

```java
listUsers();
```

**RETURN TYPE:**

*List\&lt;String\&gt;*

**RETURNS:**

A list of strings containing the user names.

**EXCEPTIONS:**

- **MilvusClientExceptions**

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

## Example

```java
import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;

// 1. Set up a client
ConnectConfig connectConfig = ConnectConfig.builder()
        .uri("http://localhost:19530")
        .token("root:Milvus")
        .build();
        
MilvusClientV2 client = new MilvusClientV2(connectConfig);

// 2. List users
List<String> resp = client.listUsers();
```