authFlow

The authentication flow for this call to run. The API action will depend on this value. For example:

• REFRESH_TOKEN_AUTH will take in a valid refresh token and return new tokens.

• USER_SRP_AUTH will take in USERNAME and SRP_A and return the Secure Remote Password (SRP) protocol variables to be used for next challenge execution.

• ADMIN_USER_PASSWORD_AUTH will take in USERNAME and PASSWORD and return the next challenge or tokens.

Valid values include:

• USER_SRP_AUTH: Authentication flow for the Secure Remote Password (SRP) protocol.

• REFRESH_TOKEN_AUTH/REFRESH_TOKEN: Authentication flow for refreshing the access token and ID token by supplying a valid refresh token.

• CUSTOM_AUTH: Custom authentication flow.

• ADMIN_NO_SRP_AUTH: Non-SRP authentication flow; you can pass in the USERNAME and PASSWORD directly if the flow is enabled for calling the app client.

• ADMIN_USER_PASSWORD_AUTH: Admin-based user password authentication. This replaces the ADMIN_NO_SRP_AUTH authentication flow. In this flow, Amazon Cognito receives the password in the request instead of using the SRP process to verify passwords.