# balance\_of

An entrypoint that retrieves a user's staked tokens amount and sends it to the callback contract. Works exactly like FA2 **balance\_of** entrypoint according to [TZIP-012](https://gitlab.com/tezos/tzip/-/blob/master/proposals/tzip-12/tzip-12.md).

### Call parameters

```pascaligo
type token_id_type      is nat

type bal_request_type   is [@layout:comb] record [
  owner                   : address;
  token_id                : token_id_type;
]

type bal_response_type  is [@layout:comb] record [
  request                 : bal_request_type;
  balance                 : nat;
]

type balance_of_type    is [@layout:comb] record [
  requests                : list(bal_request_type);
  callback                : contract(list(bal_response_type));
]
```

#### bal\_request\_type

| Field      | Type            | Description     |
| ---------- | --------------- | --------------- |
| owner      | address         | Owner of tokens |
| toeken\_id | token\_id\_type | Token ID        |

#### bal\_response\_type

| Field    | Type                                    | Description        |
| -------- | --------------------------------------- | ------------------ |
| requests | [bal\_request\_type](#bal_request_type) | Balance of request |
| balance  | nat                                     | Balance of token   |

#### balance\_of\_type

<table><thead><tr><th>Field</th><th width="286.1463414634146">Type</th><th>Description</th></tr></thead><tbody><tr><td>requests</td><td>list(<a href="#bal_response_type">bal_response_type</a>)</td><td>Balance of requests</td></tr><tr><td>callback</td><td>contract(list(<a href="#bal_response_type">bal_response_type</a>))</td><td>Callback contract</td></tr></tbody></table>

### Usage

{% tabs %}
{% tab title="🌮 Taquito" %}

```javascript
const qFarmAddress = "KT1...";
const params = [
    {
        owner: "tz1.../KT1...",
        token_id: 1,
    },
    ...
];
const qFarm = await tezos.contract.at(qFarmAddress);
const result = await qFarm.contract.views
  .balance_of(params)
  .read();
```

{% endtab %}
{% endtabs %}

### Errors

An entrypoint doesn't throw any error.


---

# 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.quipuswap.com/smart-contracts/farming/qfarm-contract/entrypoints-overview/fa2-entrypoints/balance_of.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.