Can't confirm SNS subscription

[akirasosa]

I have got an error when received a request from SNS.

ava.lang.IllegalArgumentException: Invoked method public abstract void org.springframework.cloud.aws.messaging.endpoint.NotificationStatus.confirmSubscription() is no accessor method!
        at org.springframework.util.Assert.notNull(Assert.java:115)
        at org.springframework.data.projection.MapAccessingMethodInterceptor$Accessor.<init>(MapAccessingMethodInterceptor.java:97)
        at org.springframework.data.projection.MapAccessingMethodInterceptor.invoke(MapAccessingMethodInterceptor.java:62)
        at org.springframework.data.projection.ProjectingMethodInterceptor.invoke(ProjectingMethodInterceptor.java:75)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.data.projection.ProxyProjectionFactory$TargetAwareMethodInterceptor.invoke(ProxyProjectionFactory.java:214)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
        at com.sun.proxy.$Proxy123.confirmSubscription(Unknown Source)

@RestController
@RequestMapping("/sns/xxx")
public class SNSTestController {
    @NotificationSubscriptionMapping
    public void handleSubscriptionMessage(NotificationStatus status) throws IOException {
        status.confirmSubscription();
    }
}

@Configuration
@ComponentScan
@EnableAutoConfiguration(exclude = ElastiCacheAutoConfiguration.class)
public class Application extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-aws-messaging</artifactId>
            <version>1.0.4.RELEASE</version>
        </dependency>

[irshad-qb]

Seems like you missed the resolver.
Please add it like here in this tutorial link.

[aemruli]

@akirasosa closing for now as the link should help. Otherwise please re-open the issue

[forbode]

I will leave this here for others:

1. I was using Spring Data Rest with no UI
2. I am not using autoconfigure due to limitations it places

First I tried registering custom resolvers in my RepositoryRestConfigurerAdapter, which does not work when SNS tries to verify the subscription.

After digging a bit I used the source from Spring Cloud AWS to add the resolvers.

This worked just fine.

[alexsaleh]

Hi @forbode @akirasosa @irshad-qb @aemruli,

I'm not able to receive messages using the same configuration (in Spring boot, so the xml resolver config does not help). What do I need to add in my config to add the resolvers ? It's not clear to me.
Thanks!
Alex

[aemruli]

Hi @akirasosa did you register a subscription ? Does the url match to the URL of your controller ?
You can turn on request logging on the spring mvc classes to see if a request arrives at all.

[karunakerreddyv]

Publishing to HTTP/HTTPs Endpoints Using SNS and the AWS SDK for Java (This worked for me)
https://aws.amazon.com/blogs/developer/publishing-to-https-endpoints-using-sns-and-the-aws-sdk-for-java/

[gpmind]

The SNS integration doesn't work for me at all. Configurations on resolvers or not.

There's never a confirmation request entering, so what gives?