# Function: camelToSnakeKey()

> **camelToSnakeKey**(`key`): `string`

Defined in: [packages/bitbadgesjs-sdk/src/gamm/chain-query-client.ts:212](https://github.com/BitBadges/bitbadgesjs/blob/master/packages/bitbadgesjs-sdk/src/gamm/chain-query-client.ts#L212)

Convert a single string from camelCase to snake_case. Preserves leading `@`.

## Parameters

### key

`string`

## Returns

`string`