URLSession not sending data to PHP API - php

Question

I am using this code below to send a HTTP request to my PHP API
static func submitNumber(parameters: [String: Any]){
print("parameters", parameters)
guard let url = URL(string: Constants.phoneVerifyUrl) else {
print("URL not found")
return
}
let datas = try! JSONSerialization.data(withJSONObject: parameters, options: [])
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = datas
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
let urlSession = URLSession.shared.dataTask(with: request) { data, _, error in
if error != nil {
print("error", error?.localizedDescription ?? "")
return
}
do {
if let data = data {
print("data", data)
let decodedData = try JSONDecoder().decode(DataModels.self, from: data)
DispatchQueue.main.async {
let noError = decodedData.noError
let dataStr = decodedData.dataStr
print("noError", noError)
print("dataStr", dataStr)
}
} else {
print("No Data received")
}
} catch let JsonError {
print("JSON error", JsonError.localizedDescription)
}
}
urlSession.resume()
}
And then in my PHP API, I try to receive the data like this
<?php
if(isset($_POST)){
$phoneNumber = $_POST['phoneNumber'];
//Run Code here
}
?>
When I do
print("parameters", parameters)
This is what I get (As expected)
parameters ["phoneNumber": "1234567890"]
But then, for a reason I don't know, the code in my PHP API is not executing. The PHP code is perfectly working because I use the same API for my Android app and it works fine, so I know the issue is not from my PHP API
And when I also do this print("data", data) I get a random number like this data 8402 bytes
For me, I believe I'm not passing the parameters in the right way to my API, Since I'm new to Swift, I don't know how it's done
And for my URL string Constants.phoneVerifyUrl, it's okay
Please note: I don't want to temper with my PHP API as I also use it for my Android app. So I need only to fix my Swift code

Answer 1

I found an answer from to create post body request data using below code.
var jsonData:Data?
do {
jsonData = try JSONSerialization.data(withJSONObject: dic, options: .prettyPrinted)
} catch {
print(error.localizedDescription)
}
and then create the request like this.
let url = URL(string: "https://blah.com/server/dudes/decide/this")!
var request = URLRequest(url: url)
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Accept")
request.httpMethod = "POST"
request.httpBody = jsonData

Answer 2

Okay... My first answer was wrong, but I've got it figured out.
First I removed this lines
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
And replaced it with this
request.addValue("application/json", forHTTPHeaderField: "Accept")
Then I changed my Data parameters dictionary from JSON to String
var datas = parameters.toQueryString.data(using: .utf8)!
Below is the Dictionary extension of toQueryString
extension Dictionary {
var toQueryString: String? {
return self.reduce("") { "\($0!)\($1.0)=\($1.1)&" }
}
}