Simple Alamofire Calls in Swift 4

Simple Alamofire Calls in Swift 4

import Alamofire

func makeGetCallWithAlamofire() {
  let todoEndpoint: String = "https://jsonplaceholder.typicode.com/todos/1"
  Alamofire.request(todoEndpoint)
    .responseJSON { response in
      // check for errors
      guard response.result.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling GET on /todos/1")
        print(response.result.error!)
        return
      }

      // make sure we got some JSON since that's what we expect
      guard let json = response.result.value as? [String: Any] else {
        print("didn't get todo object as JSON from API")
        if let error = response.result.error {
          print("Error: \(error)")
        }
        return
      }

      // get and print the title
      guard let todoTitle = json["title"] as? String else {
        print("Could not get todo title from JSON")
        return
      }
      print("The title is: " + todoTitle)
  }
}

func makePostCallWithAlamofire() {
  let newTodo: [String: Any] = ["title": "My First Post", "completed": 0, "userId": 1]
  Alamofire.request(TodoRouter.create(newTodo))
    .responseJSON { response in
      guard response.result.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling POST on /todos/1")
        print(response.result.error!)
        return
      }
      // make sure we got some JSON since that's what we expect
      guard let json = response.result.value as? [String: Any] else {
        print("didn't get todo object as JSON from API")
        if let error = response.result.error {
          print("Error: \(error)")
        }
        return
      }
      // get and print the title
      guard let idNumber = json["id"] as? Int else {
        print("Could not get id number from JSON")
        return
      }
      print("Created todo with id: \(idNumber)")
  }
}

func makeDeleteCallWithAlamofire() {
  let firstTodoEndpoint: String = "https://jsonplaceholder.typicode.com/todos/1"
  Alamofire.request(firstTodoEndpoint, method: .delete)
    .responseJSON { response in
      guard response.result.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling DELETE on /todos/1")
        if let error = response.result.error {
          print("Error: \(error)")
        }
        return
      }
      print("DELETE ok")
  }
}

Cheers man!

what is todRouter in makepostcallwithalamofire ?

please change file extension (.swift) - i guess it will be far more readable :)

Swift 5 and Alamofire 5 version:

import Alamofire

func makeGetCallWithAlamofire() {
  let todoEndpoint: String = "https://jsonplaceholder.typicode.com/todos/1"
  AF.request(todoEndpoint)
    .responseJSON { response in
      // check for errors
      guard response.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling GET on /todos/1")
        print(response.error!)
        return
      }

      // make sure we got some JSON since that's what we expect
      guard let json = response.value as? [String: Any] else {
        print("didn't get todo object as JSON from API")
        if let error = response.error {
          print("Error: \(error)")
        }
        return
      }

      // get and print the title
      guard let todoTitle = json["title"] as? String else {
        print("Could not get todo title from JSON")
        return
      }
      print("The title is: " + todoTitle)
  }
}

func makePostCallWithAlamofire() {
  let newTodo: [String: Any] = ["title": "My First Post", "completed": 0, "userId": 1]
  AF.request(TodoRouter.create(newTodo))
    .responseJSON { response in
      guard response.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling POST on /todos/1")
        print(response.error!)
        return
      }
      // make sure we got some JSON since that's what we expect
      guard let json = response.value as? [String: Any] else {
        print("didn't get todo object as JSON from API")
        if let error = response.error {
          print("Error: \(error)")
        }
        return
      }
      // get and print the title
      guard let idNumber = json["id"] as? Int else {
        print("Could not get id number from JSON")
        return
      }
      print("Created todo with id: \(idNumber)")
  }
}

func makeDeleteCallWithAlamofire() {
  let firstTodoEndpoint: String = "https://jsonplaceholder.typicode.com/todos/1"
  AF.request(firstTodoEndpoint, method: .delete)
    .responseJSON { response in
      guard response.error == nil else {
        // got an error in getting the data, need to handle it
        print("error calling DELETE on /todos/1")
        if let error = response.error {
          print("Error: \(error)")
        }
        return
      }
      print("DELETE ok")
  }
}