> For the complete documentation index, see [llms.txt](https://docs.justaname.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.justaname.id/sdk-reference/justaname-react-sdk/interfaces/useissubnameavailableparams.md).

# UseIsSubnameAvailableParams

[**@justaname.id/react**](/sdk-reference/justaname-react-sdk.md) • **Docs**

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[@justaname.id/react](/sdk-reference/justaname-react-sdk/globals.md) / UseIsSubnameAvailableParams

## Interface: UseIsSubnameAvailableParams

### Properties

#### chainId?

> `optional` **chainId**: `ChainId`

**Defined in**

[packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts:16](https://github.com/JustaName-id/JustaName-sdk/blob/dc845c10af242e3ca87d95ef392516ac0bfa8b95/packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts#L16)

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#### ensDomain?

> `optional` **ensDomain**: `string`

**Defined in**

[packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts:15](https://github.com/JustaName-id/JustaName-sdk/blob/dc845c10af242e3ca87d95ef392516ac0bfa8b95/packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts#L15)

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#### username

> **username**: `string`

**Defined in**

[packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts:14](https://github.com/JustaName-id/JustaName-sdk/blob/dc845c10af242e3ca87d95ef392516ac0bfa8b95/packages/@justaname.id/react/src/lib/hooks/subname/useIsSubnameAvailable.ts#L14)