# Websocket Subscribe & Unsubscribe

### Order data of any trading pair (`level2`)

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "level2"
  ],
  "token": "" #option
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "level2"
  ],
  "token": "" #option
}
```

{% endtab %}
{% endtabs %}

**Notice:**

When you subscribe to [level2](https://github.com/ZKEX/dev-docs/tree/main/market-maker-apis#ws-level2) for the first time, you will receive the snapshot data by [push-snapshot](https://github.com/ZKEX/dev-docs/tree/main/market-maker-apis#push-snapshot)

***

### K-line data of a trading pair (1/3/5/15/30/60min/2/4/6/12/24hour)

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "candles_1m"
  ],
  "token": ""   # optional (JWT-token)
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "candles_1m"
  ],
  "token": ""    # optional (JWT-token)
}
```

{% endtab %}

{% tab title="Channel name comparison table" %}

<table><thead><tr><th width="309">channel name</th><th>time</th></tr></thead><tbody><tr><td>candles_1m</td><td>1min</td></tr><tr><td>candles_3m</td><td>3min</td></tr><tr><td>candles_5m</td><td>5min</td></tr><tr><td>candles_15m</td><td>15min</td></tr><tr><td>candles_30m</td><td>30min</td></tr><tr><td>candles_60m</td><td>60min</td></tr><tr><td>candles_120m</td><td>2hour</td></tr><tr><td>candles_240m</td><td>4hour</td></tr><tr><td>candles_360m</td><td>6hour</td></tr><tr><td>candles_720m</td><td>12hour</td></tr><tr><td>candles_1440m</td><td>24hour</td></tr></tbody></table>
{% endtab %}
{% endtabs %}

***

### Ticker info of a trading pair

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "ticker"
  ],
  "token": ""    # optional (JWT-token)
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "ticker"
  ],
  "token": ""    # optional (JWT-token)
}
```

{% endtab %}
{% endtabs %}

***

### Matching information of a trading pair

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "match"
  ],
  "token": ""    # optional (JWT-token)
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "match"
  ],
  "token": ""    # optional (JWT-token)
}
```

{% endtab %}
{% endtabs %}

***

### Success order information of a trading pair

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "trade"
  ],
  "token": ""    # required (JWT-token) 
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "trade"
  ],
  "token": ""    # required (JWT-token)
}
```

{% endtab %}
{% endtabs %}

***

### Order change infomation of a trading pair

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "order"
  ],
  "token":""  # required (JWT-token)
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "product_ids": [
    "UNI-USDC"
  ],
  "channels": [
    "order"
  ],
  "token": ""  # required (JWT-token)
}
```

{% endtab %}
{% endtabs %}

***

### The asset change information of an account

{% tabs %}
{% tab title="Subscribe" %}

```
{
  "type": "subscribe",                                
  "currency_ids": [
    "UNI",
    "USDC"
  ],
  "channels": [
    "funds"
  ],
  "token": ""   # required (JWT-token)
}
```

{% endtab %}

{% tab title="Unsubscribe" %}

```
{
  "type": "unsubscribe",                                
  "currency_ids": [
    "UNI",
    "USDC"
  ],
  "channels": [
    "funds"
  ],
  "token":""   # required (JWT-token)
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: 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:

```
GET https://docs.zkex.com/zkex2.0-market-maker-apis/websocket-subscribe-and-unsubscribe.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.