What is the best method for removing a collection with AngularJS through a RESTful API?

There is a function in my application where users can pick specific entities to delete by selecting checkboxes. The IDs of the selected entities are added to an array. For instance, if I choose the first, second, and fourth entities, their IDs would be:

[0, 1, 3]

In the front-end service, I have the following method:

deleteEntities: function(batchIds){
    return $http.delete('/finance/entities', {params: [batchIds collection here??]}).success(function(data){
        return data;
    });
}

This data is then passed to the back-end service which utilizes this method:

@Component
@Path("/entities")
@Produces("application/json")
public class FinanceEntityServiceImpl implements FinanceEntityService {
    @DELETE
    public void massDeleteEntitiesByIds(String batchIds){
        System.out.println("batch ids: " + batchIds);
        List<Long> idList = GsonProcessing.deserializeIdsList(batchIds);
        financeDao.massDelete(idList);
    }
}

As I was exploring solutions on how to delete collection resources using angularjs $http, I haven't found a definitive answer yet.

I'm uncertain about whether I can pass a fresh collection to $http.delete as a parameter where it says [batchIds collection here??].

From what I understand so far, when deleting a collection, the URL should follow the format

'/myURL/batch?id=1&id=2&id=3'
. However, this approach doesn't seem practical when trying to delete a batch of 20 IDs.

Therefore, my question is: What is the best way to delete collection resources using angularjs $http.delete?

Answer №1

To start, utilizing a list of IDs is an efficient approach for deleting via the REST API.

Furthermore, it is not advisable to pass the IDs in the URL (due to security concerns). A more secure method would be to include the data in JSON format within the request body (this applies to PUT and POST requests as well).

Lastly, if your code consistently sends JSON data (possibly through a dedicated service), your backend method should also expect and handle JSON input rather than plain strings. Parsing of the request payload should ideally take place separate from the method itself.

Answer №2

Surprisingly, the solution turned out to be much simpler than anticipated. Instead of using 'params', I just needed to switch to 'data':

{params: [batchIds collection here??]} 

Changed to:

{data: batchIds}

With this adjustment, it is now possible to delete a batch of ids or perform any desired action as long as you deserialize the data on the backend.

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