Difficulty Parsing JSON With Alamofire - json

Question

I have this snippet of code:
Alamofire.request("https://api.waqi.info/feed/geo:10.3;20.7/?token=demo").responseJSON { response in
print(response.result) // result of response serialization
if let JSON = response.result.value {
print("JSON: \(JSON)")
}
guard let JSON = response.result.value as? [String:Any],
let data = JSON["data"] as? [[String:Any]] else {
print("Could not parse weather values")
return
}
It seemed to be working a few days ago but now when I run the application it will print the Could not parse weather values indicating that it is not parsing the JSON data correctly. I've gone back and changed it to what it used to be but it seems to be broken still.
I'm hoping someone here will be able to help me out with this as it's a crucial component of my first project that will be published to the App Store.
EDIT: Just to add, it successfully prints the JSON data at the print("JSON: \(JSON)") line

Answer 1

Need I post my response word for word from the last time you posted this question?
You can parse your result following the printout of your JSON
response:
guard let JSON = response.result.value as? [String:Any],
let weather = JSON["weather"] as? [[String:Any]] else {
print("Could not parse weather values")
return
}
for element in weather {
if let description = element["description"] as? String {
print(description)
}
}
If you wanted to save the result, or do something based on a certain
result as you described, you could insert something else instead of
just print(description) like:
if description == "sunny" {
//do something
}
Let me know if this makes sense. Keep in mind that ( and ) in the
Xcode console means "Array".
I really ought to be flagging this as a duplicate of Save Alamofire Result as Variable?
Edit: Based on this JSON snippet - http://pastebin.com/XiGhNA26 - it should be easy to parse out the desired information with:
guard let JSON = response.result.value as? [String:Any],
let data = JSON["data"] as? [String:Any] else
{
print("Could not parse weather values")
return
}
The difference is that in this JSON response, the "data" parameter is not an array of dictionaries, it is just a dictionary itself.

Answer 2

In you guard statement you are doing the same thing twice. That's not necessary. Take a look at this code and test it out. I'm not able to test your code right now, but I believe the error is around the area of where the downcasting happens. I believe improving that will help you.
Alamofire.request("https://api.waqi.info/feed/geo:10.3;20.7/?token=demo").responseJSON { response in
print(response.result) // result of response serialization
if let JSON = response.result.value {
print("JSON: \(JSON)")
let parsed = JSON as? NSDictionary //Here is your son data ready to be used
//We can access the data content
let data = parsed["data"] //The data is here and can be access using keys
print("Data: \(parsed["data"])")
}else{
print("Values don't exists")
return
}
}