Custom Password Grant Handler for WSO2 Identity Server 5.9.0

• This custom password grant handler overrides the default password grant handler and append the userstore domain to username.
• The userstore domain is picked within scopes.
• If a scope starts with "US_" it's considered as the userstore domain.

Steps to deploy

• Build the component by running "mvn clean install".
• Copy custom-password-grant-1.0.0.jar file which can be found in target directory into `<IS_HOME>/repository/components/lib' directory.
• Open repository/conf/deployment.toml file and add the following config.

[oauth.grant_type.password]
grant_handler = "org.wso2.identity.custom.grant.password.CustomPasswordGrantHandler"

• Restart the Identity Server.