# useReactorQuery

> **useReactorQuery**\<`Service`, `Method`, `Transform`, `Selected`\>(`__namedParameters`): [`UseReactorQueryResult`](https://ic-reactor.b3pay.net/v3/libs/type-aliases/usereactorqueryresult/)\<`Service`, `Method`, `Transform`, `Selected`\>

Defined in: [react/src/hooks/useActorQuery.ts:76](https://github.com/B3Pay/ic-reactor/blob/70bedf3c8779611a3b35710510442dee7f630b87/packages/react/src/hooks/useActorQuery.ts#L76)

Hook for executing query calls on a canister.

## Type Parameters

### Service

`Service`

### Method

`Method` *extends* `string`

### Transform

`Transform` *extends* keyof [`TransformArgsRegistry`](https://ic-reactor.b3pay.net/v3/libs/interfaces/transformargsregistry/)\<`unknown`\> = `"candid"`

### Selected

`Selected` = [`ReactorQueryData`](https://ic-reactor.b3pay.net/v3/libs/type-aliases/reactorquerydata/)\<[`ReactorReturnOk`](https://ic-reactor.b3pay.net/v3/libs/type-aliases/reactorreturnok/)\<`Service`, `Method`, `Transform`\>\>

## Parameters

### \_\_namedParameters

[`UseReactorQueryParameters`](https://ic-reactor.b3pay.net/v3/libs/interfaces/usereactorqueryparameters/)\<`Service`, `Method`, `Transform`, `Selected`\>

## Returns

[`UseReactorQueryResult`](https://ic-reactor.b3pay.net/v3/libs/type-aliases/usereactorqueryresult/)\<`Service`, `Method`, `Transform`, `Selected`\>

## Example

```ts
const { data, isLoading } = useActorQuery({
  reactor,
  functionName: "getUser",
  args: ["user-123"],
})

// With select transformation
const { data } = useActorQuery({
  reactor,
  functionName: "getUser",
  args: ["user-123"],
  select: (user) => user.name,
})
```