JSON data extraction in swift - json

Question

I am using the following code:
let string = "https://wordsapiv1.p.mashape.com/words/?
hasDetails=examples&page=1"
let url = NSURL(string: string)
let request = NSMutableURLRequest(url: url! as URL)
request.setValue("KEY", forHTTPHeaderField: "X-Mashape-Key")
request.httpMethod = "GET"
let session = URLSession.shared
let task = session.dataTask(with: request as URLRequest) { (data, response, error) -> Void in
if let resp = response as? HTTPURLResponse {
let json = try? JSONSerialization.jsonObject(with: data!, options: [])
print(json)
}
}
task.resume()
And the following is printed by the 'print(json)' line of code:
Optional({
query = {
limit = 100;
page = 1;
};
results = {
data = (
".22 caliber",
".38 caliber",
a,
"a bit",
"a cappella",
"a couple of",
"a few",
"a great deal",
"a little",
"a lot",
"a posteriori",
"a priori",
"a trifle",
aah,
abacinate,
abaft,
abandon,
abandoned,
abandonment,
abasement,
abashed,
"abatable nuisance",
abate,
abatement,
abaxial,
abbreviated,
abdicable,
abdicate,
abdominal,
"abdominal breathing",
abduct,
aberrant,
aberrate,
abhor,
abhorrent,
"abide by",
abiding,
abject,
abjectly,
abjure,
ablated,
ablative,
ablaze,
able,
"able-bodied",
ablutionary,
abnegate,
abnegation,
abnormal,
abnormally,
aboard,
abolish,
abolition,
abominable,
abominably,
abomination,
aboral,
aboriginal,
abort,
abortive,
abound,
abounding,
about,
"about-face",
above,
"above all",
aboveboard,
aboveground,
abrasive,
abreast,
abridge,
abridged,
abroach,
abroad,
abrupt,
abscessed,
abscond,
abseil,
absence,
absent,
absently,
absentminded,
absolute,
absolutely,
absoluteness,
absolve,
absolved,
absorb,
absorbed,
absorbent,
absorptance,
absorption,
abstain,
abstemious,
abstemiously,
abstinent,
abstract,
abstractive,
abstruse,
abstrusely
);
total = 21753;
};
})
The problem is that I need to get just the data that I want from this i.e. the words.
How do I now get the data from this that I want? i.e. an array of all the words returned (from ".22 caliber" to abstrusely)

Answer 1

I like to use the SwiftyJson cocoapod, as its much easier to read and understand than JSONDecoder (but of course, that would work too):
import SwiftyJson
let string = "https://wordsapiv1.p.mashape.com/words/?hasDetails=examples&page=1"
let url = NSURL(string: string)
let request = NSMutableURLRequest(url: url! as URL)
request.setValue("KEY", forHTTPHeaderField: "X-Mashape-Key")
request.httpMethod = "GET"
let session = URLSession.shared
var wordArray : [String] = []
let task = session.dataTask(with: request as URLRequest) { (data, response, error) -> Void in
if let resp = response as? HTTPURLResponse {
let json : JSON = JSON(data!)
for word in json["results"]["data"] { //There's probably a way to cast directly to a [String] here instead but I'm not sure.
wordArray.append(word)
}
}
}
task.resume()