Step 3. Handling IdpCollector nodes

Your app must handle the IdpCollector node type that DaVinci sends when a user attempts to authenticate using an external IdP.

When encountering an IdpCollector node type, call idpCollector.authorize() to begin authentication with the external IdP:

var node = daVinci.start()

if (node is ContinueNode) {
    node.collectors.forEach {
        when (it) {
            is IdpCollector -> {
                when (val result = idpCollector.authorize()) {
                    is Success -> {
                        // When success, move to next Node
                        node.next()
                    }
                    is Failure -> {
                        // Handle the failure
                    }
                }
            }
        }
    }
}

The idpCollector.authorize() method returns a Success result when authentication with the external IdP completes successfully. If not, it returns Failure and Throwable which shows the root cause of the issue.

val result = idpCollector.authorize()

result.onSuccess {
    // Move to next Node
}
result.onFailure {
    it // The Throwable
}

The result resembles the following:

Figure 1. An Android app with three external IdP options: Google, Apple, and Facebook.

Ping SDKs

Step 3. Handling IdpCollector nodes