Sends the MFA challenge
HTTP request
POST https://identitytoolkit.googleapis.com/v2/accounts/mfaSignIn:start
The URL uses gRPC Transcoding syntax.
Request body
The request body contains data with the following structure:
| JSON representation |
|---|
{ "mfaPendingCredential" : string , "mfaEnrollmentId" : string , "tenantId" : string , // Union field |
mfaPendingCredential
string
Required. Pending credential from first factor sign-in.
mfaEnrollmentId
string
Required. MFA enrollment id from the user's list of current MFA enrollments.
tenantId
string
The ID of the Identity Platform tenant the user is signing in to. If not set, the user will sign in to the default Identity Platform project.
sign_in_info
. MFA information by type of 2nd factor. sign_in_info
can be only one of the following:phoneSignInInfo
object (
StartMfaPhoneRequestInfo
)
Verification info to authorize sending an SMS for phone verification.
Response body
mfaSignIn.start response.
If successful, the response body contains data with the following structure:
| JSON representation |
|---|
{ // Union field |
response_info
. MultiFactor start sign-in response by 2nd factor type. response_info
can be only one of the following:phoneResponseInfo
object (
StartMfaPhoneResponseInfo
)
MultiFactor sign-in session information specific to SMS-type second factors. Along with the one-time code retrieved from the sent SMS, the contents of this session information should be passed to mfaSignIn.finalize to complete the sign in.
Authorization scopes
Requires one of the following OAuth scopes:
-
https://www.googleapis.com/auth/identitytoolkit -
https://www.googleapis.com/auth/cloud-platform
For more information, see the Authentication Overview .
