iOS Swift API URLQueryitem

Question

var urlComponents = URLComponents(string: "https://jsonplaceholder.typicode.com/users/")
    urlComponents?.queryItems = [URLQueryItem(name: "id", value: userId.id)]

 var urlComponents = URLComponents(string: "https://jsonplaceholder.typicode.com/users/")
    urlComponents?.queryItems = [URLQueryItem(name: "id", value: userId.id)]
    
    var urlRequest = URLRequest(url: (urlComponents?.url!)!)
    urlRequest.httpMethod = "GET"
    let config = URLSessionConfiguration.default
    let session = URLSession(configuration: config)
    
    print("urlRequest=====\(urlRequest)")
    
    session.dataTask(with: urlRequest) { (data, response, error) in
        
        guard let data = data else { return }
        
        do {
            let decoder = JSONDecoder()
            let userRes = try decoder.decode([UserResponse].self, from: data)
            self.delegate?.UserDetailsSuccess(userDetail: userRes)
        } catch let error {
            print("Error: ", error)
        }
    }.resume()

I am getting the url as : urlRequest=====https://jsonplaceholder.typicode.com/users/?id=1 The actual url : https://jsonplaceholder.typicode.com/users/1

I need to remove the ?id= How to remove this characters from this. Please help.

Thanks in advance.

I reverted your latest edit because the question became pointless. The string must be `"https://jsonplaceholder.typicode.com/users/\(userId.id)"` with a backslash before the `(`. If it still crashes then something is wrong with `userId`. Is it optional? — vadian, Nov 13 '22 at 08:05
Then just `print("https://jsonplaceholder.typicode.com/users/\(userId.id)")` to see what you get — vadian, Nov 13 '22 at 08:13
in model class id was optional. I removed that now it is working fine. thank you for your help! — Sivani Sangameswaran, Nov 13 '22 at 09:19

vadian · Accepted Answer · 2022-11-13T06:01:45.567

0

URLQueryItem adds the question mark which represents the query separator.

This REST URL doesn't use URL query so URLQueryItem is not needed at all. Add the user ID with String Interpolation.

URLRequest is not needed either, GET is the default and you don't use a special configuration

let url = URL(string: "https://jsonplaceholder.typicode.com/users/\(userId.id)")!

URLSession.shared.dataTask(with: url) { (data, response, error) in
    
    if let error { print(error); return }
    
    do {
        let decoder = JSONDecoder()
        let userRes = try decoder.decode([UserResponse].self, from: data!)
        self.delegate?.UserDetailsSuccess(userDetail: userRes)
    } catch {
        print("Error: ", error)
    }
}.resume()

edited Nov 13 '22 at 06:01

answered Nov 13 '22 at 05:55

vadian

274,689
30
353
361

So, where we need to use URLQueryItem? – Sivani Sangameswaran Nov 13 '22 at 06:10
If I am giving like above code, app is crashing Unexpectedly found nil while unwrapping an Optional value in this line let url = URL(string: "https://jsonplaceholder.typicode.com/users/\(userId.id)")! – Sivani Sangameswaran Nov 13 '22 at 06:26
Please note the backslash (\\) before the opening parenthesis. `URLQueryItem` is needed if the URL contains the query like many Google APIs. – vadian Nov 13 '22 at 07:19
I gave backslash, but it is not showing when I post a comment. let url = URL(string: "https://jsonplaceholder.typicode.com/users/\(userId.id)")! – Sivani Sangameswaran Nov 13 '22 at 08:08
Put code always in backticks (\`) – vadian Nov 13 '22 at 08:09
`let url = URL(string: "https://jsonplaceholder.typicode.com/users/\(userId.id)")!` Thanks. Now you can see. still it is crashing and userId is not in optional – Sivani Sangameswaran Nov 13 '22 at 08:14

iOS Swift API URLQueryitem

1 Answers1