How do I decode paginated API responses in Swift?

When working with paginated API responses in Swift, it's essential to handle the data correctly to ensure a smooth user experience. Pagination typically involves requesting a set number of records and then using pagination tokens or page numbers to fetch additional sets of records as needed.

Here's a basic example of how you can decode a paginated API response in Swift. This example uses the `Codable` protocol and demonstrates how to manage pagination effectively.


        struct PaginatedResponse: Codable {
            let data: [T]
            let nextPage: String?
        }

        struct Item: Codable {
            let id: Int
            let name: String
        }

        func fetchItems(page: String? = nil, completion: @escaping ([Item]) -> Void) {
            var urlString = "https://api.example.com/items"
            if let page = page {
                urlString += "?page=\(page)"
            }

            guard let url = URL(string: urlString) else { return }

            let task = URLSession.shared.dataTask(with: url) { data, response, error in
                guard let data = data, error == nil else {
                    print("Error fetching data: \(String(describing: error))")
                    return
                }

                do {
                    let paginatedResponse = try JSONDecoder().decode(PaginatedResponse.self, from: data)
                    completion(paginatedResponse.data)
                } catch {
                    print("Failed to decode JSON: \(error)")
                }
            }

            task.resume()
        }

How do I decode paginated API responses in Swift?

Popular Topics

Recent Languages

How do I decode paginated API responses in Swift?

Related Questions

Popular Topics

Recent Languages