How to access response of callback from AWS Lambda function in swift? - swift

Question

I have a simple AWS Lambda function which returns the id of the user when he logins.
if (event.email && password)
{
connection.query("SELECT * FROM doctor_data WHERE doc_email = ?", [event.email], function(error, results, fields)
{
connection.release();
if(results.length > 0)
{
bcrypt.compare(password, results[0].password, function(err, ress)
{
if(!ress)
{
callback (null, "Incorrect Password");
}
else
{
callback (null, results[0].doc_id);
}
});
}
else
{
callback (null, "Incorrect Email");
}
});
}
else
{
callback(null, "Please enter Email and Password!");
}
Now in Android (Java) we used the below mentioned logic for accessing the id. We directly store it in the String variable and it works fine.
#Override
public void onResponse(Call call, Response response) throws IOException {
String responseMsg = response.body().string();
Log.e(TAG, msg: responseMsg+ " responseMsg");
The iOS swift code is mentioned below.
func callingLoginAPI(login: LoginModel,completionHandler: #escaping (Bool, String) -> ()){
let headers: HTTPHeaders = [
.contentType("application/json")
]
AF.request(doctor_login, method: .post, parameters: login, encoder:
JSONParameterEncoder.default, headers: headers).response{
response in debugPrint(response)
switch response.result{
case.success(let data):
let urlString = doctor_login
guard let url = URL(string: urlString) else {return}
URLSession.shared.dataTask(with: url){ (data, response, err) in
guard let data = data else {return}
let dataAsString = String(data: data,encoding: .utf8)
print("this is", dataAsString)
do{
let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers)
print(json)
print("json")
}
catch{
print(error.localizedDescription)
completionHandler(false, "Login not Done")
print("not done")
}
}.resume()
if response.response?.statusCode == 200
{
completionHandler(true, "Login Done")
print("done")
}
else{
completionHandler(false, "Please try again")
print("not done")
}
case.failure(let err):
print("that")
print(err.localizedDescription)
completionHandler(false, "Try Again")
}
}
It's giving me the following response. It's giving me the id of the user which is 2 in this case but I don't know how to get/extract or save it.
Can anyone guide me how to get/extract or save the response of the body which is 2 in this case?
In Android we used the okhttp library for accessing the API whereas in iOS swift we used NSURLConnection library for acccessing the API.