Basically Im receiving reviews for a specific restaurant using the YELP API and I want to display the reviews to my SKLabel. I can see the reviews in my console printing out but when I try to get the text value from my struct it doesn't appear on to the SKLabel. Here is the code Im working with. Thank you!
extension GameScene {
func fetchReviews(id: String, //Required
locale: String, //Optional
completionHandler: #escaping ([Reviews]?, Error) -> Void) {
// MARK: Retrieve venues from Yelp API
let apikey = "API KEY"
/// create URL
let baseURL = "https://api.yelp.com/v3/businesses/\(id)/reviews"
let url = URL(string: baseURL)
print("this is the url for reviews : \(url)")
/// Creating request
var request = URLRequest(url: url!)
request.setValue("Bearer \(apikey)", forHTTPHeaderField: "Authorization")
request.httpMethod = "GET"
URLSession.shared.dataTask(with: request) { (data, response, error) in
if let err = error {
print(err.localizedDescription)
}
do {
let json = try JSONSerialization.jsonObject(with: data!, options: []) as! [String: Any]
print(">>>>>", json, #line, "<<<<<<<<<")
} catch {
print("caught")
}
}.resume()
}
}
//Reviews.swift
struct Reviews {
var text : String?
var locale : String?
var id : String?
var total : Int?
var rating: Int?
}
//GameScene.swift
fetchReviews(id: venue.id!, locale: "en_US") { (response, error) in
for review in response! {
reviewLabel.text = review.text //Doesn't work here
reviewLabel.position = CGPoint(self.size.width / 2, self.size.height / 2)
reviewLabel.fontColor = .white
reviewLabel.fontSize = 20
addChild(reviewLabel)
}
}
Related
I'm trying to get the cities by country using the POSTMAN Api. When I don't bring any variables into the parameter, the request works as expected. Though, when I try to use a global variable as a parameter, it returns empty. It works perfectly fine if it was coded as such: "country": "Nigeria" (everything else the same)
Code below:
let myCountry = selectedCountryString.lowercased().trimmingCharacters(in: .whitespacesAndNewlines)
guard let url = URL(string: "https://countriesnow.space/api/v0.1/countries/population/cities/filter") else {
return
}
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
let body: [String: Any] = [
"limit": 10,
"order": "dsc",
"orderBy": "value",
"country": "\(myCountry)"
]
request.httpBody = try? JSONSerialization.data(withJSONObject: body, options: .fragmentsAllowed)
let task = URLSession.shared.dataTask(with: request) {data, _, error in
guard let data = data, error == nil else {
return
}
do{
let response = try JSONDecoder().decode(CitiesPopModel.self, from: data)
onCompletion(response)
}
catch {
print("Error country -> \(myCountry)")
}
}
task.resume()
}
I switched my code to this and it is now working with the variable:
func callCitiesByPopAPI(completion: #escaping (CitiesPopModel?, Error?) -> ()) {
let url = "https://countriesnow.space/api/v0.1/countries/population/cities/filter"
let parameters: [String: Any] = [
"limit": 20,
"order": "dsc",
"orderBy": "value",
"country": selectedCountryString
]
AF.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default).responseDecodable(of: CitiesPopModel.self) { response in
if let error = response.error {
completion(nil, error)
return
}
if let result = response.value {
completion(result, nil)
print("City pop model result is \(result)")
return
}
}
}
Not worry about it you have to pass selectedCountryString value as like it then all goes perfectly
let selectedCountryString = "INDIA"
Replace value forHttpHeaderField for this:
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
And replace httpBody for this:
request.httpBody = body.percentEncoded()
I tested this with Algeria, it's worked.
extension Dictionary {
func percentEncoded() -> Data? {
map { key, value in
let escapedKey = "\(key)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
let escapedValue = "\(value)".addingPercentEncoding(withAllowedCharacters: .urlQueryValueAllowed) ?? ""
return escapedKey + "=" + escapedValue
}
.joined(separator: "&")
.data(using: .utf8)
}
}
extension CharacterSet {
static let urlQueryValueAllowed: CharacterSet = {
let generalDelimitersToEncode = ":#[]#" // does not include "?" or "/" due to RFC 3986 - Section 3.4
let subDelimitersToEncode = "!$&'()*+,;="
var allowed: CharacterSet = .urlQueryAllowed
allowed.remove(charactersIn: "\(generalDelimitersToEncode)\(subDelimitersToEncode)")
return allowed
}()
}
Here is my test code that shows how to fetch the data from the server,
using a variable as a parameter (country) to the POST request, and display it in a view. Works very well for me.
struct ContentView: View {
#State var cityPop = CitiesPopModel()
var body: some View {
List(cityPop.data) { data in
VStack {
Text(data.city).foregroundColor(.blue)
ScrollView(.horizontal) {
HStack {
ForEach(data.populationCounts) { pop in
VStack {
Text(pop.year)
Text(pop.sex)
Text(pop.value).foregroundColor(.blue)
}
}
}
}
}
}
.onAppear {
getCountry(country: "Australia") { result in
if let popData = result {
cityPop = popData
}
}
}
}
func getCountry(country: String, completion: #escaping(CitiesPopModel?) -> Void) {
guard let url = URL(string: "https://countriesnow.space/api/v0.1/countries/population/cities/filter") else {
return
}
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
let body: [String: Any] = [
"limit": 10,
"order": "dsc",
"orderBy": "value",
"country": country
]
request.httpBody = try? JSONSerialization.data(withJSONObject: body, options: .fragmentsAllowed)
URLSession.shared.dataTask(with: request) { data, _, error in
guard let data = data, error == nil else { return }
do {
let response = try JSONDecoder().decode(CitiesPopModel.self, from: data)
return completion(response)
}
catch {
print("Error country -> \(country)")
}
completion(nil)
}.resume()
}
}
// MARK: - CitiesPopModel
struct CitiesPopModel: Codable {
var error: Bool = false
var msg: String = ""
var data: [City] = []
}
// MARK: - City
struct City: Identifiable, Codable {
let id = UUID()
let city: String
let country: String
let populationCounts: [Population]
enum CodingKeys: String, CodingKey {
case city, country, populationCounts
}
}
// MARK: - Population
struct Population: Identifiable, Codable {
let id = UUID()
let year, value, sex, reliabilty: String
enum CodingKeys: String, CodingKey {
case year, value, sex, reliabilty
}
}
I'm making an API call to a Rails server to fetch an array of objects and then display those objects in a SwiftUI view.
When I make this same API call in Postman, it works fine. I get the response.
When I make this same call in my SwiftUI project, I don't appear to be saving that response to my Models properly or I'm running into an error otherwise. My server appears to be sending the data fine. The view loads, but with a blank List and just the navigationTitle of "Your Projects"
Looking for guidance on how to check if my response array is storing data and how to troubleshoot. The view loads the data from this array and it appears to be empty.
I used quicktype.io to map the model structure out from the server provided JSON in Postman.
Here's the relevant portion of the Model:
import Foundation
struct ProjectFetchRequest: Decodable {
let request: [ProjectResponseObjectElement]
}
// MARK: - ProjectResponseObjectElement
struct ProjectResponseObjectElement: Codable, Identifiable {
let id = UUID()
let project: Project
let projectType: ProjectType
let inspirations: [JSONAny]
}
// MARK: - Project
struct Project: Codable {
let name: String
let id: Int
let projectType, timeframe, description: String
let currentProgress: Int
let zipcode, status, createdAt, visibility: String
let city, state: String
let title: String
let showURL: String
let thumbnailURL: String
let ownedByLoggedinUser, hasBids, isPublished: Bool
}
// MARK: - ProjectType
struct ProjectType: Codable {
let generalConstructions, landscapes: [GeneralConstruction]?
}
// MARK: - GeneralConstruction
struct GeneralConstruction: Codable {
let id: Int
}
typealias ProjectResponseObject = [ProjectResponseObjectElement]
Here's the API call:
import Foundation
final class Projectservice {
static let shared = Projectservice()
private init() {}
func fetchProjects(completed: #escaping (Result<[ProjectResponseObjectElement], AuthenticationError>) -> Void) {
guard let url = URL(string: "https://example.com/api/v1/projects") else {
completed(.failure(.custom(errorMessage:"URL unavailable")))
return
}
guard let Accesstoken = UserDefaults.standard.string(forKey: "access-token") else { return }
guard let client = UserDefaults.standard.string(forKey: "client") else { return }
guard let uid = UserDefaults.standard.string(forKey: "userEmail") else { return }
print(Accesstoken)
print(client)
print(uid)
var request = URLRequest(url: url)
request.httpMethod = "GET"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue(Accesstoken, forHTTPHeaderField: "access-token")
request.addValue(client, forHTTPHeaderField: "client")
request.addValue(uid, forHTTPHeaderField: "uid")
request.addValue("Bearer", forHTTPHeaderField: "Tokentype")
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard let data = data, error == nil else { return }
guard let projectResponse = try? JSONDecoder().decode(ProjectFetchRequest.self, from: data) else { return }
completed(.success(projectResponse.request))
print(projectResponse)
}.resume()
}
}
Here's the view:
import SwiftUI
struct ProjectsView: View {
#State private var projectObjects: [ProjectResponseObjectElement] = []
var body: some View {
NavigationView{
List(projectObjects){ projectObject in
ProjectRowView(project: projectObject.project)
}
.navigationTitle("Your Projects")
.foregroundColor(.primary)
}.navigationViewStyle(StackNavigationViewStyle())
.onAppear {
fetchProjects()
}
}
func fetchProjects() {
Projectservice.shared.fetchProjects { result in
DispatchQueue.main.async {
switch result {
case .success(let projectObjects):
self.projectObjects = projectObjects
case .failure(let error):
print(error.localizedDescription)
}
}
}
}
}
I needed to declare the top level array struct in the URLSession.
import Foundation
final class Projectservice {
static let shared = Projectservice()
private init() {}
func fetchProjects(completed: #escaping (Result<[ProjectResponseObjectElement], AuthenticationError>) -> Void) {
guard let url = URL(string: "https://example.com/api/v1/projects") else {
completed(.failure(.custom(errorMessage:"URL unavailable")))
return
}
guard let Accesstoken = UserDefaults.standard.string(forKey: "access-token") else { return }
guard let client = UserDefaults.standard.string(forKey: "client") else { return }
guard let uid = UserDefaults.standard.string(forKey: "userEmail") else { return }
print(Accesstoken)
print(client)
print(uid)
var request = URLRequest(url: url)
request.httpMethod = "GET"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue(Accesstoken, forHTTPHeaderField: "access-token")
request.addValue(client, forHTTPHeaderField: "client")
request.addValue(uid, forHTTPHeaderField: "uid")
request.addValue("Bearer", forHTTPHeaderField: "Tokentype")
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard let data = data, error == nil else { return }
do {
let projectResponse = try JSONDecoder().decode([ProjectResponseObjectElement].self, from: data)
completed(.success(projectResponse))
} catch {
print(error)
}
}.resume()
}
}
So I'm practising trying to make API calls with Swift. The code is as below:
struct Example: Codable {
let userID: String
let ID: String
let title: String
let completed: String
}
func getJson(completion: #escaping (Example)-> ()) {
let urlString = "https://jsonplaceholder.typicode.com/todos/1"
if let url = URL(string: urlString) {
URLSession.shared.dataTask(with: url) {data, res, err in
if let data = data {
let decoder = JSONDecoder()
if let json: Example = try? decoder.decode(Example.self, from: data) {
completion(json)
}
}
}.resume()
}
}
getJson() { (json) in
print(json.ID)
}
However, I am unable to print out anything when getJson is called.
The example API I used is found here.
The tutorial that I used to help me write the code is found here.
Modified your variable name and data type exactly as your API response.
struct Example: Codable {
let userId: Int
let id: Int
let title: String
let completed: Bool
}
func getJson(completion: #escaping (Example)-> ()) {
let urlString = "https://jsonplaceholder.typicode.com/todos/1"
if let url = URL(string: urlString) {
URLSession.shared.dataTask(with: url) {data, res, err in
if let data = data {
let decoder = JSONDecoder()
do {
let json: Example = try! decoder.decode(Example.self, from: data)
completion(json)
}catch let error {
print(error.localizedDescription)
}
}
}.resume()
}
}
getJson() { (json) in
print(json.id)
}
You can also use CodingKey and can change your response during the init period.
struct Example: Codable {
var userID: Int
var ID: Int
var title: String
var completed: Bool
enum CodingKeys: String, CodingKey {
case userID = "userId"
case ID = "id"
case title = "title"
case completed = "completed"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
userID = try values.decode(Int.self, forKey: .userID)
ID = try values.decode(Int.self, forKey: .ID)
title = try values.decode(String.self, forKey: .title)
completed = try values.decode(Bool.self, forKey: .completed)
title = "Title: \(title)"
}
}
func getJson(completion: #escaping (Example)-> ()) {
let urlString = "https://jsonplaceholder.typicode.com/todos/1"
if let url = URL(string: urlString) {
URLSession.shared.dataTask(with: url) {data, res, err in
if let data = data {
do {
let json: Example = try JSONDecoder().decode(Example.self, from: data)
completion(json)
}catch let error {
print(error.localizedDescription)
}
}
}.resume()
}
}
getJson() { (json) in
print("ID: \(json.ID) \(json.title)")
}
import UIKit
class ApiManager: NSObject {
static func postApiRequest(url: String,parameters:[String: Any],completion: #escaping([String: Any])-> Void) {
let session = URLSession.shared
let request = NSMutableURLRequest(url: NSURL(string: url)! as URL)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
do{
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: JSONSerialization.WritingOptions())
let task = session.dataTask(with: request as URLRequest as URLRequest, completionHandler: {(data, response, error) in
if let response = response {
let nsHTTPResponse = response as! HTTPURLResponse
let statusCode = nsHTTPResponse.statusCode
print ("status code = \(statusCode)")
}
if let error = error {
print ("\(error)")
}
if let data = data {
do{
let jsonResponse = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions())
print ("data = \(jsonResponse)")
}catch _ {
print ("OOps not good JSON formatted response")
}
}
})
task.resume()
}catch _ {
print ("Oops something happened buddy")
}
}
}
I want to verify phone number by getting one time password. But I am getting some error. Please look into the code bellow and help me to resolve it. I am using Twilio for mobile verification. And Alamofire for API request. But the error I am getting like:-
Authentication Error - No credentials provided.
The data couldn’t be read because it isn’t in the correct format
My code is:-
Here is my model class: -
...struct SendVerificationCode: Codable {
let status: String?
let payee: String?
let dateUpdated: Date?
let sendCodeAttempts: [SendCodeAttempt]?
let accountSid, to: String?
let amount: Int?
let valid: Bool?
let lookup: Lookup?
let url: String?
let sid: String?
let dateCreated: Date?
let serviceSid, channel: String?
enum CodingKeys: String, CodingKey {
case status, payee
case dateUpdated = "date_updated"
case sendCodeAttempts = "send_code_attempts"
case accountSid = "account_sid"
case to, amount, valid, lookup, url, sid
case dateCreated = "date_created"
case serviceSid = "service_sid"
case channel
}
}
struct Lookup: Codable {
let carrier: Carrier?
}
struct Carrier: Codable {
let mobileCountryCode, type: String?
let errorCode: String?
let mobileNetworkCode, name: String?
enum CodingKeys: String, CodingKey {
case mobileCountryCode = "mobile_country_code"
case type
case errorCode = "error_code"
case mobileNetworkCode = "mobile_network_code"
case name
}
}
struct SendCodeAttempt: Codable {
let channel, time: String?
}...
Api Request:-
...func sendcode(mobileWithCode: String, completion: #escaping sendTwillioVerificationCodeCompletion) {
let url = URL(string: SEND_TWILIO_VERIFICATION_CODE)
var urlRequest = URLRequest(url: url!)
urlRequest.httpMethod = HTTPMethod.post.rawValue
urlRequest.addValue(userNameData, forHTTPHeaderField: "Username")
urlRequest.addValue(PasswordData, forHTTPHeaderField: "Password")
urlRequest.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
Alamofire.request(urlRequest).responseJSON { (response) in
if let error = response.result.error {
debugPrint(error.localizedDescription)
completion(nil)
return
}
guard let data = response.data else { return completion(nil)}
Common.sharedInstance().printRequestOutput(data: data)
let jsonDecoder = JSONDecoder()
do {
let clear = try jsonDecoder.decode(SendVerificationCode.self, from: data)
completion(clear)
} catch {
debugPrint(error.localizedDescription)
completion(nil)
}
}
}...
But i am getting error:-
{"code": 20003, "detail": "Your AccountSid or AuthToken was incorrect.", "message": "Authentication Error - No credentials provided", "more_info": "https://www.twilio.com/docs/errors/20003", "status": 401}
"The data couldn’t be read because it isn’t in the correct format."
Also i have tried the following code:-
import Foundation
semaphore = DispatchSemaphore (value: 0)
let parameters = "To=+919778882332&Channel=sms"
let postData = parameters.data(using: .utf8)
var request = URLRequest(url: URL(string: myUrl)!,timeoutInterval: Double.infinity)
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.addValue(requestData, forHTTPHeaderField: "Authorization")
request.httpMethod = "POST"
request.httpBody = postData
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data else {
print(String(describing: error))
return
}
print(String(data: data, encoding: .utf8)!)
semaphore.signal()
}
task.resume()
semaphore.wait()
But i am getting error like
"Invalid parameter"
Twilio developer evangelist here.
It looks as though your code is trying to call the Twilio API directly from the device and that you weren't setting your Account SID or Auth Token in that.
The issue here is that you should not store or access your auth token from within your application. That would make your account sid and auth token vulnerable to be stolen and then used to abuse your account.
Instead, you should create a server side application that talks to the Twilio API and then call that from your application.
As Jamil pointed out, there is a blog post you can follow on performing phone verification in iOS with Twilio Verify and Swift and I recommend you go through that. It includes an example server side application to call the Twilio Verify API built in Python, but you could build your own too.
Here is sample code:
import UIKit
class ViewController: UIViewController {
static let path = Bundle.main.path(forResource: "Config", ofType: "plist")
static let config = NSDictionary(contentsOfFile: path!)
private static let baseURLString = config!["serverUrl"] as! String
#IBOutlet var countryCodeField: UITextField! = UITextField()
#IBOutlet var phoneNumberField: UITextField! = UITextField()
#IBAction func sendVerification() {
if let phoneNumber = phoneNumberField.text,
let countryCode = countryCodeField.text {
ViewController.sendVerificationCode(countryCode, phoneNumber)
}
}
static func sendVerificationCode(_ countryCode: String, _ phoneNumber: String) {
let parameters = [
"via": "sms",
"country_code": countryCode,
"phone_number": phoneNumber
]
let path = "start"
let method = "POST"
let urlPath = "\(baseURLString)/\(path)"
var components = URLComponents(string: urlPath)!
var queryItems = [URLQueryItem]()
for (key, value) in parameters {
let item = URLQueryItem(name: key, value: value)
queryItems.append(item)
}
components.queryItems = queryItems
let url = components.url!
var request = URLRequest(url: url)
request.httpMethod = method
let session: URLSession = {
let config = URLSessionConfiguration.default
return URLSession(configuration: config)
}()
let task = session.dataTask(with: request) {
(data, response, error) in
if let data = data {
do {
let jsonSerialized = try JSONSerialization.jsonObject(with: data, options: []) as? [String : Any]
print(jsonSerialized!)
} catch let error as NSError {
print(error.localizedDescription)
}
} else if let error = error {
print(error.localizedDescription)
}
}
task.resume()
}
}
For more please check this link: Link.
I have done my Post-request but I am unsure about how to make it possible to send a full question and to get the most common answers back to my app.
I am in such a big need of this code in my program so would love to get some examples on how to make it work
Have tried to right the question into the parameters with a "+" instead of space which resulted into nothing.
#IBAction func GetAnswer(_ sender: Any) {
let myUrl = URL(string: "http://www.google.com/search?q=");
var request = URLRequest(url:myUrl!)
request.httpMethod = "POST"
let postString = questionAsked;
request.httpBody = postString.data(using: String.Encoding.utf8);
let task = URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in
if error != nil
{
print("error=\(String(describing: error))")
return
}
print("response = \(String(describing: response))")
do {
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
if let parseJSON = json {
let answer = parseJSON[" Answer "] as? String
self.AnswerView.text = ("Anwer: \(String(describing: answer))")
}
} catch {
print(error)
}
}
task.resume()
}
You do not use google.com/search, please check the api documentation
Paste following in Playground, should give a good start
struct Constants {
static let apiKey = "YOUR_API_KEY"
static let bundleId = "YOUR_IOS_APP_BUNDLE_ID"
static let searchEngineId = "YOUR_SEARCH_ENGINE_ID"
}
func googleSearch(term: String, callback:#escaping ([(title: String, url: String)]?) -> Void) {
let urlString = String(format: "https://www.googleapis.com/customsearch/v1?q=%#&cx=%#&key=%#", term, Constants.searchEngineId, Constants.apiKey)
let encodedUrl = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
guard let url = URL(string: encodedUrl ?? urlString) else {
print("invalid url \(urlString)")
return
}
let request = NSMutableURLRequest(url: url, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10)
request.httpMethod = "GET"
request.setValue(Constants.bundleId, forHTTPHeaderField: "X-Ios-Bundle-Identifier")
let session = URLSession.shared
let datatask = session.dataTask(with: request as URLRequest) { (data, response, error) in
guard
error == nil,
let data = data,
let json = try? JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String : Any]
else {
// error handing here
callback(nil)
return
}
guard let items = json["items"] as? [[String : Any]], items.count > 0 else {
print("no results")
return
}
callback(items.map { ($0["title"] as! String, $0["formattedUrl"] as! String) })
}
datatask.resume()
}
Usage
googleSearch(term: "George Bush") { results in
print(results ?? [])
}
Create a new search engine using following url
https://cse.google.com/cse/create/new
If you would like search entire web, use following steps
edit your engine using https://cse.google.com/cse/setup/basic?cx=SEARCH_ENGINE_ID
remove any pages listed under Sites to search
turn on Search the entire web