Why exist protocols Getable and Postable?

[amadeu01]

Postable and Postable are basically the same thing.

public protocol Getable {
    @discardableResult
    func get<T: Decodable>(url: String,
                           onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func get<T: Decodable>(url: URL,
                           onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func get<T: Decodable, U: Encodable>(url: String, query: U,
                                         onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func get<T: Decodable, U: Encodable>(url: URL, query: U,
                                         onComplete: @escaping OnComplete<T>) -> Cancellable
}

protocol Postable {
    @discardableResult
    func post<T: Decodable>(url: String,
                            onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func post<T: Decodable>(url: URL,
                            onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func post<T: Decodable, U: Encodable>(url: String, body: U,
                                          onComplete: @escaping OnComplete<T>) -> Cancellable
    @discardableResult
    func post<T: Decodable, U: Encodable>(url: URL, body: U,
                                          onComplete: @escaping OnComplete<T>) -> Cancellable
}

Why do not make one protocol and then extend it if necessary?

[ronanrodrigo]

The initial idea is to restrict all the protocols and concrete implementations to do well just one thing. This could overflow in the future. But, when this occurs we will plan how to avoid this.

[amadeu01]

I'm asking due to their similarities.
It seems like those classes are essentially the same.
Why do not have something between these two classes, and extend them if necessary?

[ronanrodrigo]

Yes, they are similar. And we could make a plan to aggregate common stuffs. But this is not the top-level issue now. I will keep this issue open so we can plan this here 😉