CODEWITHSUNDEEP
javaspringspring-boot
user6412004
user6412004

Reputation:

Local development with Google Cloud Spring dependencies

I'm currently implementing a spring boot application with quite a few dependencies on google cloud services like PubSub. The spring boot autoconfiguration creates a number of beans for me. For example a MessagingGateway implementation and a PubSubTemplate.

Now I have the following artifacts:

@Service
public class MyServiceImpl implements MyService {
    private final PubsubOutboundGateway messagingGateway;

    public MyServiceImpl(PubsubOutboundGateway messagingGateway) {
        this.messagingGateway = messagingGateway;
    }

    @Override
    public void sendToPubSub(String s) {
        messagingGateway.sendTest(s);
    }
}

@MessagingGateway
@Component
public interface PubsubOutboundGateway {
    @Gateway(requestChannel = "myChannel" )
    void sendTest(String test);
}

@Configuration
public class Channels {
    @Bean
    @ServiceActivator(inputChannel = "myChannel")
    public MessageHandler messageSender(PubSubTemplate pubsubTemplate) {
        return new PubSubMessageHandler(pubsubTemplate, "my-topic");
    }
}

When I turn off pubsub for local development, I get the following error

Consider defining a bean of type 'com.google.cloud.spring.pubsub.core.PubSubTemplate' in your configuration.

But what I really want is a local PubsubOutboundGateway that just prints the messages. I can achieve this by adding @Profile("!local") to PubsubOutboundGateway and Channels and implement a PubsubOutboundGatewayLocalImpl. But this seems like a hack.

How can perform local development without having an active GCP key etc. setup? Or does that just hinder development and I should use an active key?

Upvotes: 0

Views: 368

Answers (1)

Martin Zeitler
Martin Zeitler

Reputation: 76807

I'd suggest to use the Pub/Sub emulator, in order to get as close to the remote environment as possible.

Upvotes: 0

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