ios mock swagger responses locally via swagger.json file + OHHTTPStubs

HTTPStub.swift

import Foundation
import UIKit
import OHHTTPStubs
import SwiftyJSON


//    Pods
//    pod 'OHHTTPStub'
//    pod 'SwiftyJSON'
//
//    Usage:  in Appdelegate instantiate HTTPStub() 

@objc class HTTPStub: NSObject {
   
    
    override init() {
        HTTPStub.stubHTTP() // N.B. when enabling do a clean
    }
    
    
    class func stubHTTP() {
        
        OHHTTPStubs.setEnabled(true)
        OHHTTPStubs.onStubActivation { (request: URLRequest, stub: OHHTTPStubsDescriptor, response: OHHTTPStubsResponse) in
            print("[OHHTTPStubs] Request to \(request.url) has been stubbed")
        }
        
        OHHTTPStubs.removeAllStubs()
        let filePath = Bundle.main.path(forResource: "yourswagger-instance-1.0.0-swagger",ofType:"json")
        let url = URL.init(fileURLWithPath: filePath!)
        
        do{
            let data = try Data.init(contentsOf: url, options: Data.ReadingOptions.uncached)
            let json = JSON(data: data)
    
            for (key,value) in json["paths"] {

                let response = value["get"]["responses"]["200"]["examples"]["application/json"]
                if let _ = response.null {
                    return
                }
                do {
                    let responseData = try response.rawData()
                    
                    OHHTTPStubs.stubRequests(passingTest: { (request) -> Bool in
                        if let path =  request.url?.path{
                             return(request.url?.host == "virtserver.swaggerhub.com" && path.contains( key))
                        }
                       return false
                        
                    }) { (request) -> OHHTTPStubsResponse in
                        print("INFO: mocking response ")
                          return OHHTTPStubsResponse(data:responseData , statusCode: 200, headers: ["Content-Type" : "application/json"])
                    }
                }catch {
                }
            }
        }catch _ {
            
        }
    }
}