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Swift Package Manager compatiblePRs WelcomeLicense: MITCocoaPods Compatible Platform

Modern apps interact with a lot of different APIs. Netable makes that easier by providing a simple interface for using those APIs to drive high quality iOS and MacOS apps, built on Swift Codable, while still supporting non-standard and unusual APIs when need be.


Netable's core philosophy is to ensure that developers can write simple code for simple APIs, while providing various options for wrangling strange or non-standard APIs.

  1. Every request is an independent type
    1. Facilitates breaking up requests into separate files, avoiding monolithic networking classes
  2. Codable-based Result return types
    1. Easy interfacing between model and controller layers
    2. Reduces need for wrapper types
  3. Can automatically convert request responses into usable objects
  4. Easily integrates with existing logging libraries, or logs to debugPrint by default
  5. Comprehensive error types make handling expected and unexpected errors painless


Standard Usage

Make a new instance of Netable, and pass in your base URL:

let netable = Netable(baseURL: URL(string: "https://api.thecatapi.com/v1/")!)

Extend Request

struct CatImage: Decodable {
    let id: String
    let url: String

struct GetCatImages: Request {
    typealias Parameters = [String: String]
    typealias RawResource = [CatImage]

    public var method: HTTPMethod { return .get }

    public var path: String {
        return "images/search"

    public var parameters: [String: String] {
        return ["mime_type": "jpg,png", "limit": "2"]

Make your request and handle the result:

netable.request(GetCatImages()) { result in
    switch result {
    case .success(let catImages):
        if let firstCat = catImages.first,
           let url = URL(string: firstCat.url),
           let imageData = try? Data(contentsOf: url) {
            self.catsImageView1.image = UIImage(data: imageData)

        if let lastCat = catImages.last,
           let url = URL(string: lastCat.url),
           let imageData = try? Data(contentsOf: url) {
            self.catsImageView2.image = UIImage(data: imageData)
    case .failure(let error):
        let alert = UIAlertController(
            title: "Uh oh!",
            message: "Get cats request failed with error: \(error)",
            preferredStyle: .alert

        alert.addAction(UIAlertAction(title: "OK", style: .cancel))
        self.present(alert, animated: true, completion: nil)

Resource Extraction

Have your request object handle extracting a usable object from the raw resource

struct CatImage: Decodable {
    let id: String
    let url: String

struct GetCatImageURL: Request {
    typealias Parameters = [String: String]
    typealias RawResource = [CatImage]
    typealias FinalResource = URL

     // ...

    func finalize(raw: RawResource) -> Result<FinalResource, NetableError> {
        guard let catImage = raw.first else {
            return .failure(NetableError.resourceExtractionError("The CatImage array is empty"))

        guard let url = URL(string: catImage.url) else {
            return .failure(NetableError.resourceExtractionError("Could not build URL from CatImage url string"))

        return .success(url)

Leave your network code to deal with the important stuff

netable.request(GetCatImageURL()) { result in
    switch result {
    case .success(let catUrl):
        guard let imageData = try? Data(contentsOf: catUrl) else {

        self.imageView.image = UIImage(data: imageData)
    case .failure(let error):
        // ...

Full Documentation

In-depth documentation is provided through Jazzy and GitHub Pages.


To run the example project, clone the repo, and run pod install from inside the Example directory first.


  • iOS 10.0+
  • MacOS 10.15+
  • Xcode 11.0+


Netable is available through Swift Package Manager. To install it, follow these steps:

  1. In Xcode, click File, then Swift Package Manager, then Add Package Dependency
  2. Choose your project
  3. Enter this URL in the search bar https://github.com/steamclock/netable.git

Netable is also available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'Netable'

Then run pod install.


Netable is available under the MIT license. See the License.md for more info.


Stars: 2


- 2020-05-01T21:42:17

  • Add support for built in logging
  • Refine example project and documentation

Fix duration unit in network logs - 2020-03-12T16:54:22

Add error codes - 2020-03-02T21:44:10

Lower minimum iOS target to 11 - 2020-02-11T23:09:15

Rename to Netable - 2020-02-11T22:30:33

  • Renamed to Netable
  • Consolidated iOS and Mac targets
  • Added support for Mac Catalyst
  • Removed MockingJay and updated unit tests using OHHTTPStubs
  • Fixed async tests
  • Bumped version to 0.8.0
  • Updated readme, changelog, podspec, SPM manifest
  • Deintegrated pods and workspace from project

Add basic support for Swift Package Manager - 2020-02-03T22:00:53

It is now possible to use this library through Swift Package Manager. See README.md for installation instructions.

Support custom URL Session configuration - 2020-02-03T21:08:43

Users can now pass in custom url session configurations to customize behaviours such as timeouts and caching policies.