API Decoding Struct Swift

Question

Hello I'm trying to decode this API, https://gorest.co.in/public-api/posts. What I'm doing wrong with structs? Thank you.

struct Root: Decodable {
let first: [Code]
let second: [Meta]
let third: [Post] } 

struct Code: Decodable {
    let code: Int
}

struct Meta: Decodable {
    let meta: [Pagination]
}

struct Pagination: Decodable {
    let total: Int
    let pages: Int
    let page: Int
    let limit: Int
}

struct Post: Decodable {
    let id: Int
    let user_id: Int
    let title: String
    let body: String
}

Your struct doesn't match the JSON. Make them `Codable` instead of `Decodable` only, and do `let root = Root(first...`, ie create an instance, and use `JSONEncoder()` to see what's the "compatible" JSON with your struct. You'll see... — Larme, Jul 18 '22 at 11:10
No it's not. The `response` parameter is from the API. What is `PostPresenter` supposed to represent? — Daniel T., Jul 18 '22 at 12:51

score 2 · Accepted Answer · answered Jul 18 '22 at 11:15

2

Quicktype.io is your friend. Post the JSON to it and get the struct back automatically.

// This file was generated from JSON Schema using quicktype, do not modify it directly.
// To parse the JSON, add this file to your project and do:
//
//   let root = try? newJSONDecoder().decode(Root.self, from: jsonData)

import Foundation

// MARK: - Root
struct Root: Codable {
    let code: Int
    let meta: Meta
    let data: [Datum]
}

// MARK: - Datum
struct Datum: Codable {
    let id, userID: Int
    let title, body: String

    enum CodingKeys: String, CodingKey {
        case id
        case userID = "user_id"
        case title, body
    }
}

// MARK: - Meta
struct Meta: Codable {
    let pagination: Pagination
}

// MARK: - Pagination
struct Pagination: Codable {
    let total, pages, page, limit: Int
}

answered Jul 18 '22 at 11:15

Daniel T.

32,821
6
50
72

Cannot assign value of type '[Datum]' to type 'String' is the error for the datum. I am trying to solve it. The last one before the successful run – georgekak Jul 18 '22 at 11:24
1

What is the URL that causes that error? The one you provided does not. – Daniel T. Jul 18 '22 at 11:29
I refresh the question. Take a look. thanks. – georgekak Jul 18 '22 at 11:34
1

Your `title` var is a String, the `data` is not a String. It's an array of Datum objects. – Daniel T. Jul 18 '22 at 11:36

API Decoding Struct Swift

1 Answers1