Email link password reset flow example (using flow continuation)





Airlock IAM

  • Airlock IAM 7.7 or newer.


Intended solution environment

This example shows how to configure and use the Loginapp REST API to implement a password reset flow using the flow continuation concept.

  • This example meets the following requirements:
  • User identification is verified using an email address by sending a link to the end-user.
  • After clicking on the link, the user may set a new password.

Note that the example may easily be combined with a 2nd factor as shown in Complex password reset flow example.


  • Understand how the password reset feature works in general.
  • Understand how to use the flow continuation concept to build a password reset flow using the Send Email Link Step.
  • Be able to configure and try out flow continuation.

All following procedures are exemplary and will vary according to your setup or needs.


  • The user account used in the example exists in the IAM database.
  • An email address is stored in the user account.
  • The Loginapp REST API is configured.

Notes on the configuration

  • To implement a password reset flow using the Send Email Link Step, two flows must be configured:
  • Initiating flow: A flow that lets the user enter the username and sends an email with a link to the user.
  • Continuation flow: A flow that verifies the flow continuation token from the link, identifies the user with it and lets the user set the new password.

See Using the Flow Continuation Step in public self-service flows for more information on the flow continuation concept.

1. Initiating flow configuration and REST calls

The flow is configured as a public self-service flow under:
Loginapp >> Public Self-Service Flows >> new flow with id password-reset-init.

The flow steps configured for this example and a high-level view of the REST calls is shown in the diagram below.






Provide the name of the user for which the password reset flow should be executed.

This step is required to start the flow and to select the user.

By default, this step will complete with 200 OK, even if the user cannot be found, the account is locked or invalid. This is done to provide protection against user enumeration attacks.

To change this, adapt the configuration of the Default Password Reset Restrictions plugin or define your own password restriction settings using the plugin Custom Public Self-Service Restrictions.


Sends an email with a link to the user.

Note that the configuration of this step contains the ID of the continuation flow described below. It embeds the flow ID in the link sent to the user so - that when the link is clicked - the correct continuation flow is selected.

The step stores information about the user in the IAM database such that the continueing flow can access it (even on a new HTTP session).

2. Continuation flow configuration and usage

As the initiating flow, this flow is also configured as a public self-service flow under:
Loginapp >> Public Self-Service Flows >> new flow with id password-reset-continue.






Validate the flow continuation token to identify the user for the flow.

When clicking on the link in the email (sent by the Send Email Link Step), a flow continuation token is sent in the HTTP header when selecting the flow (1).

This step extracts the flow continuation token and looks it up in the IAM database. With the token, it identifies the user for the rest of the flow.

If this step is successful, the email address of the user has been verified.


Set the new password.

This step persists the new password if it passes the password policy.


Clears all open OAuth sessions.

For security reasons, all open OAuth sessions (e.g. logged-in apps) are logged out.


Logs out all remembered browsers/devices.

For security reasons, all logged-in browsers/devices (remember-me feature) are logged out.