webauthn
signIn()
signIn<P>(
   provider?, 
   options?, 
authorizationParams?): Promise<P extends RedirectableProviderType ? SignInResponse | undefined : undefined>Initiate a signin flow or send the user to the signin page listing all possible providers. Handles CSRF protection.
Type parameters
| Type parameter | Value | 
|---|---|
P extends undefined | RedirectableProviderType | undefined | 
Parameters
| Parameter | Type | 
|---|---|
provider? | LiteralUnion<P extends RedirectableProviderType ? BuiltInProviderType | P : BuiltInProviderType> | 
options? | SignInOptions | 
authorizationParams? | SignInAuthorizationParams | 
Returns
Promise<P extends RedirectableProviderType ? SignInResponse | undefined : undefined>