> For the complete documentation index, see [llms.txt](https://docs.gamechat.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gamechat.me/basics/game-chat-v3/game-chat-english/start-using-v3/login.md).

# Login

## Login <a href="#undefined" id="undefined"></a>

After initialization is complete, you can log in by entering your username, name, and profile image address (optional).

### Access <a href="#undefined" id="undefined"></a>

```csharp
await nc.Connect(
    id: [USERNAME],
    name: [NAME],
    profile: [PROFILE_URL],
    customField: [CUSTOM_FIELD],
    token: [TOKEN]
);
```

| ID            | Type   | Description         | Required |
| ------------- | ------ | ------------------- | -------- |
| USERNAME      | string | ID                  | O        |
| NAME          | string | Nickname            | X        |
| PROFILE\_URL  | string | Profile address URL | X        |
| LANGUAGE      | string | Language code       | X        |
| CUSTOM\_FIELD | string | User-defined field  | X        |
| TOKEN         | string | Token value         | X        |

> Note
>
> * Obtain a token through the API for log-in security.
> * [API DOCS TOKEN](https://api.ncloud-docs.com/docs/en/bizapp-token-issuance) lets you use a token issued through the API.
> * If you do not want to use the token method, set **disable** in **Dashboard > Security settings > Token authentication**.

### Terminate access <a href="#undefined" id="undefined"></a>

Use the code below to disconnect from the connected Game Chat server.

```csharp
await nc.Disconnect();
```

### User information <a href="#undefined" id="undefined"></a>

* Member Data Class

| ID      | Type   | Description   |
| ------- | ------ | ------------- |
| id      | string | User ID       |
| name    | string | Username      |
| profile | string | Image address |

#### **Import user information**

Gets information about a specific ID (only the nickname is sent for security reasons).

```csharp
Hashtable filter = new Hashtable
{
    { "id", [USER_ID] }
};
Hashtable sort = new Hashtable
{
    { "created_at", -1 }
};
Hashtable option = new Hashtable
{
    { "offset", 0 },
    { "per_page", 10 }
};
var users = await nc.getUsers(filter, sort, option);
```

* Parameters

<table><thead><tr><th width="116">ID</th><th width="95">Type</th><th width="445">Description</th><th>Required</th></tr></thead><tbody><tr><td>filter</td><td>object</td><td>Search is available for all fields of a query through filtering</td><td>O</td></tr><tr><td>sort</td><td>object</td><td>Define the filter for the fields you want to sort (ascending order "1", descending order "-1")</td><td>X</td></tr><tr><td>option</td><td>object</td><td>See the following when there are options</td><td>X</td></tr></tbody></table>

* Options

<table><thead><tr><th width="212">ID</th><th width="192">Type</th><th>Description</th></tr></thead><tbody><tr><td>offset</td><td>number</td><td>Start offset</td></tr><tr><td>per_page</td><td>number</td><td>The number of returns (up to 100)</td></tr></tbody></table>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.gamechat.me/basics/game-chat-v3/game-chat-english/start-using-v3/login.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.