Question

I hope someone could put me through a code to learn to call asmx webservices from backbone collection. The example i have put here is extremely simple

Collection

 window["Persons"] = Backbone.Collection.extend({
        model: Person,
        url: "service.asmx/GetPeople"
    });

note: I do have a service.asmx file at the point

Asmx End point

 [WebMethod]
    [ScriptMethod]
    public static List<Person> GetPeople()
    {
        List<Person> people = new List<Person>(10);
        for (int i = 0; i < 10; i++)
        {
            people.Add(new Person(i.ToString()));
        }
        return people;
    }

The Model

public class Person
{
    public string Name { get; set; }
    public Person(string name)
    {
        Name = name;
    }
}

when i do the below chrome xhr inspector informs me of this error

var family = new Persons();family.fetch();

Request format is unrecognized for URL unexpectedly ending in
‘/GetPeople’

Answer 1

You will want to override the Backbone.sync() function to customize the persistence and retrieval of models from the server.

You can take a look at the annotated source code of how the Backbone.sync() function is overwritten for a local storage alternative.