# Join and Pay

{% hint style="info" %}
Combines joining a game room and paying tokens into a single atomic operation.
{% endhint %}

**Endpoint:** `/game/joinPay`\
**Method:** POST

{% tabs %}
{% tab title="Request Parameters" %}

```typescript
{
    gameId: string; // The game ID
    roomId: string; // The ID of the room to join and pay to
    sessionJwts: string[]; // Array of session JWTs for players joining and paying
    tokens: string[]; // Array of token names/symbols
    amounts: number[]; // Array of amounts to pay (corresponding to tokens array)
    sync?: boolean; // When true, returns direct response. When false/undefined, returns a task ID for polling status
}
```

{% endtab %}

{% tab title="Success Response (200)" %}
When sync=false (default):

```typescript
{
    task: {
        id: string; // Task ID for checking status
    }
}
```

When sync=true:

```typescript
{
        roomId: string;
        plyrIds: string[]; // Array of player IDs that joined
        payments: {
            plyrId: string;
            token: string;
            amount: number;
        }[];
}
```

{% endtab %}

{% tab title="Error Response (400)" %}

```typescript
{
    error: string;
}
```

{% endtab %}
{% endtabs %}

{% hint style="info" %}
The arrays \`sessionJwts\`, \`tokens\`, and \`amounts\` must have corresponding lengths. The operation is atomic - if either joining or paying fails, the entire operation is rolled back.
{% endhint %}

## Example Usage

```javascript
// Sync=true usage
const timestamp = Date.now().toString();
const body = {
    gameId: 'game_xyz',
    roomId: '123',
    sessionJwts: ['playerJwt1', 'playerJwt2'],
    tokens: ['TOKEN1', 'TOKEN2'],
    amounts: [100, 50],
    sync: true // or omit for task-based response
};

const hmac = generateHmacSignature(timestamp, body, secretKey);

const response = await axios.post(apiEndpoint + '/game/joinPay', body, {
    headers: {
        apikey: apiKey,
        signature: hmac,
        timestamp: timestamp
    }
});
```


---

# 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://dev.plyr.network/api-reference/game-room/helpers/join-pay.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.