JSON Post method is not working swift - ios

Question

I am Parsing json data from google maps api in swift, am trying to show current location using google maps api, getting current location latitude and longitude using didUpdateLocations. inside the serviceLocationupdate()
posting lat and long values using post method but am not getting the response from the json. how can I get the response(data) from the json.
this is the code
var lat = ""
var long = ""
var latlng:String = ""
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location:CLLocationCoordinate2D = manager.location!.coordinate
self.lat = String(location.latitude)
self.long = String(location.longitude)
latlng = self.lat+"," + self.long
}
func serviceLocationupdate()
{
var request = URLRequest(url: URL(string: "http://maps.googleapis.com/maps/api/geocode/json")!)
let session = URLSession.shared
request.httpMethod = "POST"
----->> let bodyData = "latlng=\(latlng)&sensor=\("true")"
print("bodydata",bodyData)
request.httpBody = bodyData.data(using: String.Encoding.utf8);
let task = session.dataTask(with:request,completionHandler:{(d,response,error)in
do{
if let data = d{
do{
let jsonResult = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as! NSDictionary
if let results = jsonResult["results"] as? [[String : AnyObject]] {
for result in results{
if let addressComponents = result["address_components"] as? [[String : AnyObject]] {
print(addressComponents)
}
}
}
} catch
{
}
}
}
})
task.resume()
}
if i can use this api its working fine getting proper data
var request = URLRequest(url: URL(string:"http://maps.googleapis.com/maps/api/geocode/json?latlng=13.026811,77.593773&sensor=true")!)
I want display the current location using latitude and longitude

Answer 1

Looks like the API works with the url you mentioned (http://maps.googleapis.com/maps/api/geocode/json?latlng=13.026811,77.593773&sensor=true), then you can just use GET instead of POST. Try the following:
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location:CLLocationCoordinate2D = manager.location!.coordinate
self.lat = String(location.latitude)
self.long = String(location.longitude)
latlng = self.lat+","+self.long
serviceLocationupdate()
}
func serviceLocationupdate()
{
var request = URLRequest(url: URL(string: "http://maps.googleapis.com/maps/api/geocode/json?latlng=\(latlng)&sensor=true")!)
let task = session.dataTask(with:request,completionHandler:{(d,response,error)in
if let data = d{
do{
let jsonResult = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as! NSDictionary
if let results = jsonResult["results"] as? [[String : AnyObject]] {
for result in results{
if let addressComponents = result["address_components"] as? [[String : AnyObject]] {
print(addressComponents)
}
}
}
} catch
{
}
}
})
task.resume()
}

Answer 2

This works in a playground:
//: Playground - noun: a place where people can play
import UIKit
import XCTest
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
func serviceLocationupdate()
{
let session = URLSession.shared
if let url = URL(string: "http://maps.googleapis.com/maps/api/geocode/json"),
var params = URLComponents(url: url, resolvingAgainstBaseURL: false) {
params.queryItems = [URLQueryItem]()
params.queryItems?.append(URLQueryItem(name: "latlng", value: "33.9250675,-84.339827"))
params.queryItems?.append(URLQueryItem(name: "sensor", value: "true"))
guard let finalURL = params.url else {
print("Failed to create URL")
return
}
var request = URLRequest(url: finalURL)
request.httpMethod = "POST"
let task = session.dataTask(with:request,completionHandler:{(data,response,error)in
if let error = error {
print("Error is \(error)")
return
}
if let resp = response as? HTTPURLResponse {
print("Response status code \(resp.statusCode)")
guard let data = data else {
return
}
do {
if let jsonResult = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as? NSDictionary,
let results = jsonResult["results"] as? [[String : AnyObject]] {
for result in results {
if let addressComponents = result["address_components"] as? [[String : AnyObject]] {
print(addressComponents)
}
}
} else {
print("Could not coerce into a dictionary")
}
} catch _ {
print("An error occurred")
}
} else {
print("Invalid response")
}
})
task.resume()
}
}
serviceLocationupdate()