MoyaObjectMapper

ObjectMapper bindings for Moya for easier JSON serialization. Includes RxSwift and ReactiveSwift bindings as well.

Installation

CocoaPods

Use the following entry in your Podfile

pod 'MoyaObjectMapper', '1.0.3'

The subspec if you want to use the bindings over RxSwift.

pod 'MoyaObjectMapper/RxSwift', '1.0.3'

And the subspec if you want to use the bindings over ReactiveSwift.

pod 'MoyaObjectMapper/ReactiveSwift', '1.0.3'

Usage

Create a model struct or class. It needs to implement protocol Mappable. More details about model creation here

import Foundation
import ObjectMapper

struct Repository: Mappable {
    var identifier: Int!
    var name: String!
    var fullName: String!
    var language: String?
    
    init?(map: Map) {
        if map.JSON["id"] == nil {
            return nil
        }
    }
    
    mutating func mapping(map: Map) {
        identifier <- map["id"]
        name <- map["name"]
        fullName <- map["full_name"]
        language <- map["language"]
    }
}

Then you have methods that extends the response from Moya. These methods are:

map(to: type, context: MapContext? = nil) // map object
map(to: [type], context: MapContext? = nil) // map array of objects

For RxSwift and ReactiveCocoa additionally methods for optional mapping are provided. These methods are:

mapOptional(to: type, context: MapContext? = nil)
mapOptional(to: [type], context: MapContext? = nil)

See examples below, or in a Demo project.

1. Normal usage (without RxSwift or ReactiveCocoa)

provider = MoyaProvider<GitHub>()
provider.request(GitHub.repos(username: "gperdomor")) { (result) in
    if case .success(let response) = result {
        do {
            let repos = try response.map(to: [Repository.self])
            print(repos)
        } catch Error.jsonMapping(let error) {
            print(try? error.mapString())
        } catch {
            print(":(")
        }
    }
}

2. RxSwift

provider = RxMoyaProvider<GitHub>()
provider.request(GitHub.repo(fullName: "gperdomor/sygnaler"))
        .map(to: Repository.self)
        .subscribe { event in
            switch event {
            case .next(let repo):
                print(repo)
            case .error(let error):
                print(error)
            default: break
            }
        }

Additionally, modules for RxSwift contains optional mappings. It basically means that if the mapping fails, mapper doesn't throw errors but returns nil. For instance:

provider = RxMoyaProvider<GitHub>()
provider
    .request(GitHub.repos(username: "gperdomor"))
    .mapOptional(to: [Repository.self])
    .subscribe { event in
        switch event {
        case .next(let repos):
            // Here we can have either nil or [Repository] object.
            print(repos)
        case .error(let error):
            print(error)
        default: break
        }
    }

3. ReactiveSwift

provider = ReactiveSwiftMoyaProvider<GitHub>()
provider
    .request(GitHub.repos(username: "gperdomor"))
    .map(to: [Repository.self])
    .start { event in
        switch event {
        case .value(let repos):
            print(repos)
        case .failed(let error):
            print(error)
        default: break
        }
    }

Additionally, modules for ReactiveSwift contains optional mappings. It basically means that if the mapping fails, mapper doesn't throw errors but returns nil. For instance:

provider = ReactiveSwiftMoyaProvider<GitHub>()
provider
    .request(GitHub.repos(username: "gperdomor"))
    .mapOptional(to: [Repository.self])
    .start { event in
        switch event {
        case .value(let repos):
            // Here we can have either nil or [Repository] object.
            print(repos)
        case .failed(let error):
            print(error)
        default: break
        }
    }

Sample Project

There's a sample project in the Demo directory. To use it, run pod install to download the required libraries. Have fun!

Other Mappers

• MoyaModelMapper: ModelMapper bindings for Moya
• MoyaUnbox: Unbox bindings for Moya

Contributing

Hey! Like MoyaObjectMapper? Awesome! We could actually really use your help!

Open source isn't just writing code. MoyaObjectMapper could use your help with any of the following:

• Finding (and reporting!) bugs.
• New feature suggestions.
• Answering questions on issues.
• Documentation improvements.
• Reviewing pull requests.
• Helping to manage issue priorities.
• Fixing bugs/new features.

If any of that sounds cool to you, send a pull request! After a few contributions, we'll add you as an admin to the repo so you can merge pull requests and help steer the ship 🚢

License

MoyaObjectMapper is available under the MIT license. See the LICENSE file for more info.