CODEWITHSUNDEEP
spring-bootaxon
souvikc
souvikc

Reputation: 1031

Spring boot -Axon framework NoHandlerForCommandException: No Handler for command

I am getting NoHandlerForCommandException: No Handler for command while trying to use Axon framework with Spring boot.

Below are my Java files :

The Rest controller ->

@RestController
@RequestMapping("/product")
public class ProductController {

@Autowired
private CommandGateway gateway;

@PostMapping
public ResponseEntity createProduct(@RequestBody CreateProductModel model) {
    
    CreateProductCommand command=CreateProductCommand.builder()
            .price("$123")
            .productId(UUID.randomUUID().toString())
            .product("Shoe")
            .build();
    
    String s=gateway.sendAndWait(command);
    
    return new ResponseEntity<String>(HttpStatus.CREATED);
}

The ProductCreatedEvent object ->

import lombok.Data;

@Data
public class ProductCreatedEvent {
@TargetAggregateIdentifier
private  String productId;
private  String product;
private  String price ;

}

The command class CreateProductCommand ->

@Builder
@Data
public class CreateProductCommand {
@TargetAggregateIdentifier
private final String productId;
private final String product;
private final String price ;

}

The Aggregate class ->

@Aggregate
public class ProductAggregate {

@AggregateIdentifier
private  String productId;
private  String product;
private  String price ;

public ProductAggregate() {
    
}

@CommandHandler
public ProductAggregate(CreateProductCommand command) {
    //TODO: Validation logic can be handled here
    ProductCreatedEvent event=new ProductCreatedEvent();
    
    BeanUtils.copyProperties(command, event);
    AggregateLifecycle.apply(event);
}

@EventSourcingHandler
public void on(ProductCreatedEvent event) {
    this.price=event.getPrice();
    this.productId=event.getProductId();
    this.product=event.getProduct();
    
}

}

Upvotes: 0

Views: 509

Answers (1)

Andrei Ramanouski
Andrei Ramanouski

Reputation: 21

You should not use the annotation TargetAggregateIdentifier in The ProductCreatedEvent class

Upvotes: 0

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