Data return issue in swiftUI from another function

August 10, 2022

Below is my code which is calling an API and performing action as per the code

import Foundation

class apiCall {
    func getUsers(completion:@escaping ([Result]) -> ()) {
        
        let url = URL(string: "http://myapi-call-ges-here")!
        var request = URLRequest(url: url)
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")
        request.httpMethod = "GET"

        URLSession.shared.dataTask(with: request) { (data, response , error) in
     
            do{
                let result = try JSONDecoder().decode(Result.self,from: data!)
                print(result)
                
            }
            catch{
                print("Error:\(error)")
            }
         }.resume()
        }
}

But I want to do code clean up and wanted to keep API calling code in different file as shown below

import Foundation

class apiCall {
    func getUsers(completion:@escaping ([Result]) -> ()) {

      let request=apiParamfunc()

        URLSession.shared.dataTask(with: request) { (data, response , error) in

            do{
                let result = try JSONDecoder().decode(Result.self,from: data!)
                print(result)

            }
            catch{
                print("Error:\(error)")
            }
         }.resume()
        }
}

apiParamfunc is a function which is created in another file

import Foundation
 funct apiParamfunc-> Any{

     let url = URL(string: "http://myapi-call-ges-here")!
        var request = URLRequest(url: url)
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")
        request.httpMethod = "GET"
   
       return request


}

but I am getting an error for dataTask as "No exact matches in call to instance method ‘dataTask’ ". I even tried with different datatype but not getting any helpful thing,please help me on this

>Solution :

You cannot use Any, but specify exact type, like

 funct apiParamfunc() -> URLRequest {     // << here !!

     let url = URL(string: "http://myapi-call-ges-here")!
     var request = URLRequest(url: url)