Swift WordPress Posts Fetch Page

2 comments

1. You need to use awesome new API of WordPress called WP REST API, which will give you all data you need in JSON format. Have a look at this url to get started:
   http://v2.wp-api.org/

   Use this official plugin in your WordPress site:
   https://wordpress.org/plugins/rest-api/

   Update: You do not need to install above plugin as it has been merged into WordPress core from v4.4 to onwards.

2. At first, you should define models for parsing the JSON response, for example, as below.

   import Foundation
   
   struct Title: Decodable {
   
       let rendered: String
   
   }
   
   struct Content: Decodable {
   
       let rendered: String
   
   }
   
   struct WPFeaturedMedia: Decodable {
   
       let sourceURLString: String
   
       var url: URL? {
           .init(string: sourceURLString)
       }
   
       enum CodingKeys: String, CodingKey {
           case sourceURLString = "source_url"
       }
   
   }
   
   struct Embedded: Decodable {
   
       let medias: [WPFeaturedMedia]?
   
       enum CodingKeys: String, CodingKey {
           case medias = "wp:featuredmedia"
       }
   
   }
   
   struct PostHeader: Decodable, Identifiable {
   
       let id: Int
   
       let date: Date
       let title: Title
       let embedded: Embedded
   
       enum CodingKeys: String, CodingKey {
           case date = "date"
           case title = "title"
           case embedded = "_embedded"
           case id = "id"
       }
   
   }
   
   struct Post: Decodable, Identifiable {
   
       let id: Int
   
       let date: Date
       let title: Title
       let content: Content
       let embedded: Embedded
   
       enum CodingKeys: String, CodingKey {
           case date = "date"
           case title = "title"
           case content = "content"
           case embedded = "_embedded"
           case id = "id"
       }
   
   }
   
   

   You can easily fetch posts using Combine.

   import Combine
   import SwiftUI
   
   final class ViewModel: ObservableObject {
   
           @Published var postHeaders: [PostHeader] = []
           @Published var error: Error?
   
           private var cancellable: AnyCancellable?
   
           init() {
               let url = URL(string: "https://PUT_YOUR_HOST_HERE/wp-json/wp/v2/posts?_fields=id,date,title,_links,_embedded&_embed”)!
   
               cancellable = URLSession.shared.dataTaskPublisher(for: url)
                   .map { $0.data }
                   .decode(type: [PostHeader].self, decoder: JSONDecoder())
                   .receive(on: DispatchQueue.main)
                   .sink(
                       receiveCompletion: { completion in
                           switch completion {
                           case .failure(let error):
                               self.error = error
                           case .finished:
                               break
                           }
                       },
                       receiveValue: { posts in
                           self.postHeaders = posts
                       }
                   )
           }
   }
   
   

   Full sources you can find here: https://github.com/fuzzzlove/SwiftUIWordpressClient

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