Vapor API client for auth-template: Create User

.swift

import Cocoa
import Foundation

let baseURL = "http://localhost:8080"

enum APIError: Error {
    case invalidBody
    case invalidEndpoint
    case invalidURL
    case emptyData
    case invalidJSON
    case invalidResponse
    case statusCode(Int)
}

struct User: Codable {
    let name: String
    let email: String
    let password: String
    let verifyPassword: String
}

// We'll use this extension to quickly generate some user for our requests
extension User {
    init(id: Int) {
        self.name = "user\(id)"
        self.email = "user\(id)@example.com"
        self.password = "password\(id)"
        self.verifyPassword = "password\(id)"
    }
}

// Basic API client using dataTask
// From now on, we'll use the suffix OLD to indicate the API Client implemented with dataTask
func createUserOLD(user: User, completion: @escaping (Data?, URLResponse?, Error?) -> Void) {
    let headers = [
        "Content-Type": "application/json",
        "cache-control": "no-cache",
    ]
    let encoder = JSONEncoder()
    guard let postData = try? encoder.encode(user) else {
        completion(nil,nil, APIError.invalidBody)
        return
    }
    guard let url = URL(string: baseURL + "/users" ) else {
        completion(nil,nil, APIError.invalidEndpoint)
        return
    }
    var request = URLRequest(url: url,
                             cachePolicy: .useProtocolCachePolicy,
                             timeoutInterval: 10.0)
    request.httpMethod = "POST"
    request.allHTTPHeaderFields = headers
    request.httpBody = postData as Data
    
    let session = URLSession.shared
    let dataTask = session.dataTask(with: request as URLRequest, completionHandler: completion)
    dataTask.resume()
}


// Basic usage of the dataTask client
createUserOLD(user: User(id:2)) { (data, response, error) in
    if let data = data,
            let string = String(data: data, encoding: .utf8) {
            print(string)
    } else {
            print(" - No data")
    }
    //print(response ?? "")
    print(error ?? "")
}