Broadleaf APIs not working - broadleaf-commerce

Question

I'm trying to consume Broadleaf APIs to Create Cart, Add Item and Checkout on a consumer application.
Cloned Demo application and modified the configuration as per the link:
https://www.broadleafcommerce.com/docs/core/current/broadleaf-concepts/rest/rest-tutorials
Problems:
1. Create new Cart->
POST: http://localhost:8080/api/v1/cart
Exception: HttpRequestMethodNotSupportedException: Request method 'POST' not supported
With GET request: worked
Add Product ID:
POST: http://localhost:8080/api/v1/cart/1?categoryId=1&customerId=100
Exception:HttpRequestMethodNotSupportedException: Request method 'POST' not supported
GET Request worked but the product is not added.
3.Add a Payment to the Order
POST: http://localhost:8080/api/v1/cart/checkout/payment?customerId=100
Added the OrderPaymentWrapper in the body as mentioned in the above URL
Exception:
messageKey": "queryParameterNotPresent",
"message": "com.broadleafcommerce.rest.api.exception.BroadleafWebServicesException.queryParameterNotPresent"
Alternatively, referred https://demo.broadleafcommerce.org/api/v2/swagger-ui.html#/ to invoke the API as per the swagger documentation.
Same issue, unable to create a order flow.
I've tried to debug by running on localhost https://github.com/BroadleafCommerce/DemoSite
Same issue.
Please advise.

Answer 1

This looks like an outstanding issue with our #FrameworkController annotation. I opened an issue in Broadleaf at https://github.com/BroadleafCommerce/Issues/issues/3 with more information as to why it is currently failing.
The workaround is to modify CustomCartEndpoint in the API project that you have to add in the createNewCartForCustomer() method. The final implementation of CustomCartEndpoint should look like this:
#RestController
#RequestMapping(value = "/cart",
produces = { MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE })
public class CustomCartEndpoint extends CartEndpoint {
#Override
#RequestMapping(value = "", method = RequestMethod.GET)
public OrderWrapper findCartForCustomer(HttpServletRequest request) {
try {
return super.findCartForCustomer(request);
} catch (Exception e) {
// if we failed to find the cart, create a new one
return createNewCartForCustomer(request);
}
}
#Override
#RequestMapping(value = "", method = RequestMethod.POST)
public OrderWrapper createNewCartForCustomer(HttpServletRequest request) {
return super.createNewCartForCustomer(request);
}
}