How to loop through JSON data in SwiftyJSON - ios

Question

I have a JSON data with structure and I don't know how to use for-loop with SwiftyJSON to get each sections entries of "path" and "updated" value. Anyone can help? Thanks.
var jsonData = "{
"css":[
{
"path": "style.css",
"updated": "12432"
},
{
"path": "base.css",
"updated": "34627"
},
],
"html":[
{
"path": "home.htm",
"updated": "3223"
},
{
"path": "about",
"updated": "3987"
}
]
}
"
I tried to code part of for-loop
let json = JSON(jsonData)
for ( ) in json {
let filepath =
let updated =
// do searching another json to found file exists and updates
}

Answer 1

It's on the README, under the section named "loop": https://github.com/SwiftyJSON/SwiftyJSON#loop
// If json is .Dictionary
for (key,subJson):(String, JSON) in json {
//Do something you want
}
// If json is .Array
// The `index` is 0..<json.count's string value
for (index,subJson):(String, JSON) in json {
//Do something you want
}
Applied to your specific JSON structure:
let jsonData = """
{
"css": [
{
"path": "style.css",
"updated": "12432"
},
{
"path": "base.css",
"updated": "34627"
}
],
"html": [
{
"path": "home.htm",
"updated": "3223"
},
{
"path": "about",
"updated": "3987"
}
]
}
""".data(using: .utf8)!
let json = JSON(data: jsonData)
for (_, subJson):(String, JSON) in json {
for (_, subJson):(String, JSON) in subJson {
let filepath = subJson["path"].stringValue
let updated = subJson["updated"].stringValue
print(filepath + " ~ " + updated)
}
}
Using Swift 4 Codable:
struct FileInfo: Decodable {
let path, updated: String
}
let dec = try! JSONDecoder().decode([String:[FileInfo]].self,from: jsonData)
print(dec)

Answer 2

As per your JSON structure, use this :
for (index,subJson):(String, JSON) in json {
print(index) // this prints "css" , "html"
for (key,subJson):(String, JSON) in subJson {
let filepath = subJson["path"]
let updated = subJson["updated"]
}
}