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

> updateMainAuthDescriptor(
    authDescriptor: AnyAuthDescriptorRegistration ,
): Operation Creates an operation object that can be used to call the ft4.upd

Source: https://docs.chromia.com/pages/ft4-ts-client/functions/accounts.updateMainAuthDescriptor/

Function

# updateMainAuthDescriptor

* ```signature
  updateMainAuthDescriptor(
      authDescriptor: AnyAuthDescriptorRegistration,
  ): Operation
  ```

  Creates an operation object that can be used to call the `ft4.update_main_auth_descriptor`-operation

  #### Parameters

  + authDescriptor: [AnyAuthDescriptorRegistration](https://docs.chromia.com/pages/ft4-ts-client/types/accounts.AnyAuthDescriptorRegistration/)

    information for the new main auth descriptor

  #### Returns Operation

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