Use AWS SDK

For advanced use cases where Amplify does not provide the functionality, you can retrieve an escape hatch to access the underlying Amazon Cognito client.

You can access the underlying CognitoIdentityProviderClient and CognitoIdentityClient as shown below

implementation "aws.sdk.kotlin:cognitoidentityprovider:1.0.44"
implementation "aws.sdk.kotlin:cognitoidentity:1.0.44"

suspend fun resendCodeUsingEscapeHatch() {
    // Get the instance of AWSCognitoAuthPlugin
    val cognitoAuthPlugin = Amplify.Auth.getPlugin("awsCognitoAuthPlugin")
    val cognitoAuthService = cognitoAuthPlugin.escapeHatch as AWSCognitoAuthService
    // Get the instance of CognitoIdentityProviderClient
    val cognitoIdentityProviderClient = cognitoAuthService.cognitoIdentityProviderClient
    val request = ResendConfirmationCodeRequest {
        clientId = "xxxxxxxxxxxxxxxx"
        username = "user1"
    val response = cognitoIdentityProviderClient?.resendConfirmationCode(request)

Learn more about consuming Kotlin clients from Java using either a blocking interface or an equivalent async interface based on futures.

// Get the instance of AWSCognitoAuthPlugin
AWSCognitoAuthPlugin cognitoAuthPlugin = (AWSCognitoAuthPlugin) Amplify.Auth.getPlugin("awsCognitoAuthPlugin");
// Get the instance of CognitoIdentityProviderClient
CognitoIdentityProviderClient client = cognitoAuthPlugin.getEscapeHatch().getCognitoIdentityProviderClient();
ResendConfirmationCodeRequest request = ResendConfirmationCodeRequest.Companion.invoke(dslBuilder -> {
    dslBuilder.setClientId("xxxxxxxxxxxxxxxx");
    dslBuilder.setUsername("user1");
    return null;
assert client != null;
client.resendConfirmationCode(request, new Continuation<ResendConfirmationCodeResponse>() {
    @NonNull
    @Override
    public CoroutineContext getContext() {
        return GlobalScope.INSTANCE.getCoroutineContext();
    @Override
    public void resumeWith(@NonNull Object resultOrException) {
        Log.i(TAG, "Result: " + resultOrException);

Use existing Cognito resources