I have struct like this:
struct Company {
let name:String
let id:Int
}
I want to parse from JSON a set of Companies.
Can you please help me how can I do that in Swift?
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You can use SwiftyJSON, github.com/SwiftyJSON/SwiftyJSONvzamanillo– vzamanillo2014-12-11 11:25:17 +00:00Commented Dec 11, 2014 at 11:25
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3 Answers
This is for future folks. In Swift 4 there is a very nice solution with JSONDecoder.
With Alamofire code will look like this -
Alamofire.request(Router.login(parameters: parameters)).responseJSON {
response in
switch response.result{
case .success(_):
let decoder = JSONDecoder()
guard let _ = response.data else{
return
}
do {
let loginDetails = try decoder.decode(LoginDetails.self, from: response.data!)
// get your details from LoginDetails struct
} catch let err{
print(err)
}
case .failure(let error):
print(error)
}
}
https://developer.apple.com/documentation/foundation/jsondecoder
https://medium.com/xcblog/painless-json-parsing-with-swift-codable-2c0beaeb21c1
Hope this helps!!!
2 Comments
vadian
guard let _ is very bad syntax if you actually need the bound variable later.Kanishk Gupta
I think the point here is how to decode a JSON to a struct. You can unwrap the optional whichever way you want.
Unfortunately JSON parsing is not very easy in swift. You should use the NSJSONSerialization class to do it.
There are plenty of examples here to look at.
Comments
In Swift3, It's possible to convert dictionary direct to struct use MappingAce
struct Company: Mapping {
let name:String
let id:Int
}
let companyInfo: [String : Any] = ["name" : "MappingAce", "id" : 1]
let company = Company(fromDic: companyInfo)
print(company.name)//"MappingAce"
print(company.id) // 1
Comments
