HttpKit

HttpKit is a Swift library for handling HTTP requests. It provides a convenient way to interact with HTTP endpoints and perform common HTTP operations.

Installation

To start using HttpKit in your Swift project, follow these installation instructions:

1. Swift Package Manager (SPM):

You can easily add HttpKit to your project by adding it as a dependency in your
Package.swift file:

.package(url: "https://github.com/kemalturk/HttpKit.git", .upToNextMajor(from: "1.0.0"))

2. Import HttpKit:

In your Swift code, import the HttpKit module to start using it:

import HttpKit

Usage

HttpKit is designed to simplify making HTTP requests. Here are some examples of how to use HttpKit in your Swift project:

Setting Base URL

let BASE_URL = "127.0.0.1:3000"

extension Endpoint {
    var scheme: String { "http" }
    var host: String { BASE_URL }
}

In the code above, we set the base URL for our API requests.

Defining Endpoints

HttpKit uses an Endpoint protocol to define API endpoints. Here's an example of how to define movie-related endpoints:

enum MovieEndpoint {
    case fetchMovies
    case likeMovie(id: String)
    case commentMovie(model: CommentMovieRequestModel)
}

extension MovieEndpoint: Endpoint {
    var path: String {
        switch self {
        case .fetchMovies:
            return "/movies"
        case .likeMovie:
            return "/movie/like"
        case .commentMovie:
            return "/click-event"
        }
    }

    var method: RequestMethod {
        switch self {
        case .likeMovie, .commentMovie:
            return .post
        case .fetchMovies:
            return .get
        }
    }

    var body: [String : Any]? {
        switch self {
        case .likeMovie(let id):
            return ["id": id]
        case .commentMovie(let model):
            return model.toDict()
        default:
            return nil
        }
    }
}

Implementing API Client

You can implement an API client using HttpKit to make API requests:

protocol ApiClient {
    func fetchMovies() async -> FetchState<[Movie]>
    func likeMovie(id: String) async -> FetchState<String>
    func commentMovie(model: CommentMovieRequestModel) async -> FetchState<String>
}

struct ApiHttpClient: HttpClient, ApiClient {
    func fetchMovies() async -> FetchState<[Movie]> {
        await sendRequest(endpoint: MovieEndpoint.fetchMovies).toFetchState()
    }

    func likeMovie(id: String) async -> FetchState<String> {
        await sendRequest(endpoint: MovieEndpoint.likeMovie(id: id)).toFetchState()
    }

    func commentMovie(model: CommentMovieRequestModel) async -> FetchState<String> {
        await sendRequest(endpoint: MovieEndpoint.commentMovie(model: model)).toFetchState()
    }
}

Using the API Client

@MainActor
class MoviesViewModel: ObservableObject {

    @Published var fetchState: FetchState<[Movie]> = .initial

    let client: ApiClient
    init(client: ApiClient = ApiHttpClient()) {
        self.client = client
    }

    func fetchMovies() {
        Task {
            fetchState = .loading
            fetchState = await client.fetchMovies()
        }
    }

}

Examples

Here are some practical examples of how to use HttpKit to interact with your API:

1. Fetch a list of movies:

let client = ApiHttpClient()
let fetchState = await client.fetchMovies()
print(fetchState)

2. Like a movie:

let client = ApiHttpClient()
let likeState = await client.likeMovie(id: "123")
print(likeState)

3. Comment on a movie:

let client = ApiHttpClient()
let commentModel = CommentMovieRequestModel(/* provide request data */)
let commentState = await client.commentMovie(model: commentModel)
print(commentState)

Contributing

Contributions to HttpKit are welcome. If you have any suggestions, bug reports, or would like to contribute to the development of HttpKit, please follow the guidelines in the Contributing.md file in the repository.