# ftSigner · FT4 TypeScript client · Chromia Docs (concept)

> ftSigner(pubKey: BufferId): FtSigner Creates an FtSigner instance from the specified pubkey Parameters pubKey: BufferId the pubkey to convert to an FtSigne

Source: https://docs.chromia.com/pages/ft4-ts-client/functions/authentication.ftSigner/

Function

# ftSigner

* ```signature
  ftSigner(pubKey: BufferId): FtSigner
  ```

  Creates an `FtSigner` instance from the specified pubkey

  #### Parameters

  + pubKey: BufferId

    the pubkey to convert to an `FtSigner`

  #### Returns [FtSigner](https://docs.chromia.com/pages/ft4-ts-client/interfaces/authentication.FtSigner/)

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-ts-client/functions/authentication.ftSigner.html)Generated API reference, mirrored from the live docs