Another network wrapper for URLSession. Built to be simple, small and easy to create tests at the network layer of your application.

Install

Carthage

To integrate Frisbee into your Xcode project using Carthage, specify it in your Cartfile:

github "ronanrodrigo/Frisbee" ~> 0.2.5

Run carthage update to build the framework and drag the built Frisbee.framework into your Xcode project.

CocoaPods

To integrate Frisbee into your Xcode project using CocoaPods, specify it in your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '10.0'
use_frameworks!

target '<Your Target Name>' do
    pod 'Frisbee', '0.2.5'
end

Then, run the following command:

$ pod install

Swift Package Manager

To integrate Frisbee into your Swift Package Manager project, set the dependencies in your Package.swift:

// swift-tools-version:4.0

import PackageDescription

let package = Package(
    name: "<Your Packege Name>",
    dependencies: [
        .package(url: "https://github.com/ronanrodrigo/Frisbee.git", from: "0.2.5")
    ],
    targets: [
        .target(name: "<Your Packege Name>", dependencies: ["Frisbee"])
    ]
)

Usage

GET Request

Decodable Entity

A Response of a Request made in Frisbee will return an enum of Result<T>. Where T must be a decodable entity. In this guide it will be used a Movie entity like bellow.

struct Movie: Decodable {
    let name: String
}

Making a Request

You could abstract Frisbee usage in some class and inject an object that conforms to Getable protocol. So, in production ready code you will use an instance of NetworkGet object.

class MoviesController {
    private let getRequest: Getable

    // Expect something that conforms to Getable
    init(getRequest: Getable) {
        self.getRequest = getRequest
    }

    func listMovies() {
        getRequest.get(url: someUrl) { moviesResult: Result<[Movie]> in
            switch moviesResult {
                case let .success(movies): print(movies[0].name)
                case let .fail(error): print(error)
            }
        }
    }
}

// Who will call the MoviesController must inject a NetworkGet instance
MoviesController(getRequest: NetworkGet())

Query Parameters

It is easy to use query ~~strings~~ paramenters. Just create an Encodable struct and use it in get(url:query:onComplete:) method.

struct MovieQuery: Encodable {
    let page: Int
}

let query = MovieQuery(page: 10)
NetworkGet().get(url: url, query: query) { (result: Result<Movie>) in
    // ...
}

POST Request

Same way as GET request, Frisbee has a Postable protocol. And in prodution ready code you will use an instance of NetworkPost.

Making Request

It is the same logic as GET request.

class MoviesController {
    private let postRequest: Postable

    // Expect something that conforms to Postable
    init(postRequest: Postable) {
        self.postRequest = postRequest
    }

    func createMovie() {
        postRequest.post(url: someUrl) { moviesResult: Result<[Movie]> in
            switch moviesResult {
                case let .success(movies): print(movies[0].name)
                case let .fail(error): print(error)
            }
        }
    }
}

Body Arguments

It is easy to use body paramenters. Just create an Encodable struct and use it in post(url:body:onComplete:) method.

struct MovieBody: Encodable {
    let name: String
}

let body = MovieBody(name: "A New Movie")
NetworkPost().post(url: url, body: body) { (result: Result<Movie>) in
    // ...
}

Usage in Tests

In test target code you can create your own Getable (or Postable as you needed) mock.

public class MockGet: Getable {
    var decodableMock: Decodable!

    public func get<Entity: Decodable>(url: URL, completionHandler: @escaping (Result<Entity>) -> Void) {
        get(url: url.absoluteString, completionHandler: completionHandler)
    }

    public func get<Entity: Decodable>(url: String, completionHandler: @escaping (Result<Entity>) -> Void) {
        if let decodableMock = decodableMock as? Entity {
            completionHandler(.success(decodableMock))
        }
    }

}

And instead NetworkGet you will use to test the MockGet on MoviesController


class MoviesControllerTests: XCTestCase {
    func testDidTouchAtListMoviesWhenHasMoviesThenPresentAllMovies() {
        let mockGet = MockGet()
        let movies = [Movie(name: "Star Wars")]
        mockGet.decodableMock = movies
        let controller = MoviesController(getRequest: mockGet)

        controller.didTouchAtListMovies()

        XCTAssertEqual(controller.moviesQuantity, movies.count)
    }
}

Frisbee Next Features

Get request
Create Carthage distribution
Create Cocoapod distribution
Query parameter builder
Issue # 8 Implement other HTTP verbs
Issue # 7 Ready for use mock
Issue # 2 Propagate Swift Errors

To collaborate, resolve questions and find out what’s new about the Frisbee library, join the group on Telegram: https://t.me/FrisbeeLib