# get\_reserves

This on-chain view returns reserves (token A and token B) in a specific liquidity pool (pair). Also can return a list of responses for a list of requests.

### Call parameters

```pascaligo
type token_id_t         is nat

type reserves_req_t     is token_id_t

list(reserves_req_t)
```

<table><thead><tr><th width="150">Field</th><th width="202.33333333333331">Type</th><th>Description</th></tr></thead><tbody><tr><td>reserves_req_t</td><td>token_id_t (nat)</td><td>Pair ID for which you need to get reserves</td></tr></tbody></table>

### Return type

```pascaligo
type token_id_t         is nat

type reserves_t         is [@layout:comb] record [
  token_a_pool            : nat;
  token_b_pool            : nat;
]

type reserves_req_t     is token_id_t

type reserves_res_t     is [@layout:comb] record [
  request                 : reserves_req_t;
  reserves                : reserves_t;
]

list(reserves_res_t)
```

#### reserves\_t

<table><thead><tr><th>Field</th><th width="150">Type</th><th>Description</th></tr></thead><tbody><tr><td>token_a_pool</td><td>nat</td><td>Amount of token A in the liquidity pool (pair)</td></tr><tr><td>token_b_pool</td><td>nat</td><td>Amount of token B in the liquidity pool (pair)</td></tr></tbody></table>

#### reserves\_res\_t

<table><thead><tr><th width="150">Field</th><th width="152.00000000000003">Type</th><th>Description</th></tr></thead><tbody><tr><td>request</td><td>reserves_req_t (nat)</td><td>Pair ID for which you need to get a reserves</td></tr><tr><td>reserves</td><td><a href="#reserves_t">reserves_t</a></td><td>Reserves of tokens in a liquidity pool (pair)</td></tr></tbody></table>

### Usage

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

```javascript
const dexCoreAddress = "KT1...";
const params = [0, 1, 15];
const viewCaller = "tz1...";
const dexCore = await tezos.contract.at(dexCoreAddress);
const reserves = await dexCore.contract.contractViews.get_reserves(params).executeView({ viewCaller: viewCaller });
```

{% endtab %}
{% endtabs %}

### Errors

* `108` - pair (pool) with the specified `token_id` not listed.