Injecting spring data repository into spring cloud function - spring-data

Question

I would like to use spring data repository functionality within the spring cloud function.
I've cloned the spring cloud function with azure provider: https://github.com/spring-cloud/spring-cloud-function/tree/2.2.x/spring-cloud-function-samples/function-sample-azure
I have it running locally as well as on azure.
I would like to do the following:
public class FooHandler extends AzureSpringBootRequestHandler<Foo, Bar> {
#Autowired
private FooRepository fooRepository;
#FunctionName("uppercase")
public Bar execute(
#HttpTrigger(name = "req", methods = { HttpMethod.POST}, authLevel = AuthorizationLevel.FUNCTION) HttpRequestMessage<Optional<Foo>> foo,
ExecutionContext context) {
fooRepository.insert(foo.getBody().get());
return handleRequest(foo.getBody().get(), context);
}
}
Example mongo repo:
import org.springframework.data.mongodb.repository.MongoRepository;
public interface FooRepository extends MongoRepository<Foo, String> {
}
The result is NullPointerException. Any idea whether it's possible with spring cloud functions?

Answer 1

You are injecting it in the wrong place. FooHandler is just a delegate to invoke uppercase function. So instead inject it into the function itself.
#Bean
public Function<Foo, Bar> uppercase(FooRepository fooRepository) {
return foo -> {
// do whatever you need with fooRepository
return new Bar(foo.getValue().toUpperCase());
};
}