This is my json structure -----> How should I save in model Class using JSONJoy.
JSON:
Optional(<__NSSingleObjectArrayI 0x61000000b570>(
{
locationC = 116789;
locationN = testrtyuio;
siteName = lab;
}
)
)
Please check :
struct LocationDetails: JSONJoy {
var locationC: String? // based on your datatype change it
let locationN: String? // based on your datatype change it
let siteName: String? // based on your datatype change it
init(_ decoder: JSONDecoder) throws {
locationC = try decoder["locationC"].get()
locationN = try decoder["locationN"].get()
siteName = try decoder["siteName"].get()
}
}
let data = try Data(contentsOf: file) // data is your json format
var locationDetails = try LocationDetails(JSONDecoder(data))
print(locationDetails) // Output : LocationDetails(locationC: Optional("116789"), locationN: Optional("testrtyuio"), siteName: Optional("lab"))
print(locationDetails.locationC!) // Output : 116789
Related
I am a newbie and need help.
I need to create a baseString from the below QueryString.
This baseString will look something like this in the end:
&ap=裕廊坊 心邻坊&oq=c# nunit mac&q=c# nunit mac
QueryString :
HTTPS://www.sky.com/api/v1/rest/level2/in-in/?q=c%23+nunit+mac&oq=c%23+nunit+mac&ap=裕坊%20邻坊
Problem:
How to get the KeyValue from the above QueryString
1) By getting all the components separated by "&" like below
--Keyvalue from the Query String:
q=c%23+nunit+mac&oq
oq=c%23+nunit+mac
ap=裕坊%20邻坊
I would use struct as I need to call the static func:
struct BaseString {
static func createBaseString(authPrefix,signMethod,urlPath,nonce, timestamp,delimeter="&", bool sort= true, bool quote = false) -> String? {
var dict = [String:String]()
let url = NSURL(string: urlPath)
var keyValues = url.query?.componentsSeparatedByString("&")
//-(1)- adding keyValue into Dictinary
dict.??
//-- how to add the data below?
//- after (1) : Add other key value into same Dictionary
dict Add(authPrefix + "_timestamp", timestamp);
dict.Add(authPrefix + "_nonce", nonce);
dict.Add(authPrefix + "_signature_method", signMethod);
dict.Add(authPrefix + "_version", "1.0");
var return_format:String
if quote == true{
//-- create a baseString
sort the Dictionary
return_format = "&" + url + "&" +Dictionary.ToString()
(format: String = "q ="V1" " the value with double quote)
}else{
//-- create a baseString
sort the Dictionary
return_format = Dictionary.ToString()
(format:Strig = " q=v2")
}
var baseString = return_format
return baseString
}
}
Thanks. your help is much appreciated.
You can get Key-Value dictionary from your URL's query items with the help of URLQueryItem class, like this
let urlString = "https://www.sky.com/api/v1/rest/level2/in-in/?q=c%23+nunit+mac&oq=c%23+nunit+mac&ap=裕坊%20邻坊"
let encodedUrlString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
let items = URLComponents(string: encodedUrlString)?.queryItems
var keyValues: [String: String] = [:]
items?.forEach{
item in
keyValues[item.name] = item.value
}
print(keyValues)
//["q": "c%23+nunit+mac", "ap": "裕坊%20邻坊", "oq": "c%23+nunit+mac"]
Hope this will help you.
If you need to obtain Query substring from your url string, you need to create URL from it and get query.
guard let url = URL(string: encodedUrlString) else {
fatalError()
}
let queryString = url.query!
print(queryString.removingPercentEncoding)
//q=c%23+nunit+mac&oq=c%23+nunit+mac&ap=裕坊%20邻坊
If you need to add new components to your query,
var components = URLComponents(string: encodedUrlString)
let item = URLQueryItem(name: "NEWVKEY", value: "NEWVALUE")
components?.queryItems?.append(item)
let url = components?.url
let resultString = url?.absoluteString
//or
let resultString2 = url?.absoluteString.removingPercentEncoding
The idea is to use URL processing abilities of Swift standard library. Please check the documentation of URL, URLComponents, URLQueryItem structs. Don't write string processing code, manipulate URLs instead.
https://developer.apple.com/documentation/foundation/url
https://developer.apple.com/documentation/foundation/urlcomponents
https://developer.apple.com/documentation/foundation/urlqueryitem
I hope I manage to ask this properly:
I am using Alamofire and SwiftyJSON for managing the JSON files I get from the server.
I have issues with understanding the type of response.result.value , how to cast it to an object I can construct it with SwiftyJSON's JSON(data: data) constructor.
This is my code for the request using Alamofire:
func performRequest() {
// parameters["retry_count"] = retryNum
if let _ = host, let path = path {
let request = Alamofire.request(HOST + path, method: method, parameters: parameters, headers: headers)
request.responseJSON { response in
print("-----")
print(response.response?.statusCode)
print("-----")
// check if responseJSON already has an error
// e.g., no network connection
if let json = response.result.value {
print("--------")
print(json)
print("--------")
}
guard response.result.error == nil else {
print(response.result.error?.localizedDescription ?? "Response Error")
self.completionHandler?(response.result.isSuccess, nil)
self.retryRequest()
return
}
// make sure we got JSON and it's a dictionary
guard let json = response.result.value as? [String: AnyObject] else {
print("didn't get dictionary object as JSON from API")
self.completionHandler?(response.result.isSuccess, nil)
self.retryRequest()
return
}
// make sure status code is 200
guard response.response?.statusCode == 200 else {
// handle status code
self.completionHandler?(response.result.isSuccess, nil)
return
}
self.completionHandler?(response.result.isSuccess, json)
RequestsQueue.sharedInstance.sema.signal()
}
}
This results with this print:
{
numOfShiftsInDay = 3;
shifts = (
{
endTime = "14:00";
startTime = "07:30";
},
{
endTime = "20:00";
startTime = "13:30";
},
{
endTime = "02:00";
startTime = "19:30";
}
);
}
this data type is a [String: AnyObject].
I want to use it to construct a SwiftyJSON JSON object since it is easier for me to parse the data using SwiftyJSON methods..
This is the code I try for parsing it and then using it but obviously it doesn't work:
let json = JSON(data: data)
I get this compilation error:
Cannot convert value of type '[String : AnyObject]?' to expected argument type 'Data'
So how should I go about this?
You need to use JSON(data) instead of JSON(data: data) because this init(data:) wants Data as argument.
Changed line
let json = JSON(data: data)
To
let json = JSON(data)
I got Encrypted data from API hit by below method
URLSession.shared.dataTask(with: url!)
converted data into JSON but still it is encrypted
var json = try(JSONSerialization.jsonObject(with: data!, options: .allowFragments))
converted it into string
let arr:String = json as! String
decrypted it
let jsonText = arr.fromBase64()//extension method, given end of question
now it is in Json Formate as below (this is only 1 record, there are more than 1 records in Json string)
{
"CompanyAlt_Key": 1,
"Company_Name": "XYZ LTD",
"TableName": "CompanyList"
},
I have a model of same type
public class CompanyList {
public var companyAlt_Key : Int?
public var company_Name : String?
public var tableName : String?
}
here is fromBase64 method
func fromBase64() -> String {
let data = NSData.init(base64Encoded: self, options: []) ?? NSData()
return String(data: data as Data, encoding: String.Encoding.utf8) ?? ""
}
I am facing problem to get the Json String into an array of type CompanyList class
Help would be appreciate
You'll need to convert your jsonString to data first:
let jsonData = jsonString.data(using: .utf8)!
The convert the data to an array
let array = JSONSerialization.jsonObject(with: jsonData, options: nil) as? [[String: Any]]
Then iterate through the array…
let companies = array?.map {
return CompanyList(dictionary: $0)
}
Implement an init method for your CompanyList, passing in a dictionary for each record in your response…
public class CompanyList {
public var companyAlt_Key : Int?
public var company_Name : String?
public var tableName : String?
init(dictionary: [String: Any]) {
companyAlt_Key = dictionary["companyAlt_Key"] as? Int
company_Name = dictionary["company_Name"] as? String
tableName = dictionary["tableName"] as? String
}
}
You can also use this to validate the data. If the fields in your class are non-optional, you can use an optional init as follows…
public class CompanyList {
public var companyAlt_Key : Int
public var company_Name : String
public var tableName : String
init?(dictionary: [String: Any]) {
guard let companyAlt_Key = dictionary["companyAlt_Key"] as? Int,
let company_Name = dictionary["company_Name"] as? String,
let tableName = dictionary["tableName"] as? String else {
return nil
}
self.companyAlt_Key = companyAlt_Key
self.company_Name = company_Name
self.tableName = tableName
}
}
If you're using an optional init, use flatMap to ensure you don't have any optional elements in your array…
let companies = array?.flatMap {
return CompanyList(dictionary: $0)
}
I'm hoping someone may be able to help me figure out a snafu I'm having with an app I am trying to write (or learn to write) in Swift 2.0. This previously worked in Swift 1.2, but after the necessary conversions, I am continunally facing the error;
Cannot invoke initializer of type 'NSData' with an argument list of type '(contenOfURL: NSURL, options: NSDataReadingOptions, error:nil)'
Here is my code, slightly truncated, that I am using;
...
class func fetchMinionData() -> [Minion] {
let myURL = "https://myurl/test.json"
let dataURL = NSURL(string: myURL)
let data = NSData(contentsOfURL: dataURL!, options: NSDataReadingOptions.DataReadingMappedIfSafe, error: nil)
//THIS IS THE LINE THAT THROWS THE ERROR
let minionJSON = JSON(data)
var minions = [Minion]()
for (_ , minionDictionary) in minionJSON {
minions.append(Minion(minionDetails: minionDictionary))
}
return minions
}
...
Note that I plan to use the SwiftyJSON library to further parse the data once it is downloaded. I am searching endlessly online, but I just can't seem to figure this out! Thank you!
If you are working with Swift 2, you should not pass the last argument "error". Instead put a try around the NSData initialization. If data needs to be accessed outside take the init result in a var and convert to let Modified code
var optData:NSData? = nil
do {
optData = try NSData(contentsOfURL: dataURL!, options: NSDataReadingOptions.DataReadingMappedIfSafe)
}
catch {
print("Handle \(error) here")
}
if let data = optData {
// Convert data to JSON here
}
Example code for Dictionary :) Swift 2.0
https://github.com/DaRkD0G/LoadExtension/edit/master/LoadExtensionDictionary.swift
enum EHError: ErrorType {
case Nil(String)
case NSData(String)
case JSON(String)
}
extension Dictionary {
/**
Loads a JSON file from the app bundle into a new dictionary
- parameter filename: File name
- throws: PathForResource / NSData / JSON
- returns: Dictionary<String, AnyObject>
*/
static func loadJSONFromBundle(filename: String) throws -> Dictionary<String, AnyObject> {
guard let path = NSBundle.mainBundle().pathForResource(filename, ofType: "json") else {
throw EHError.Nil("[EasyHelper][loadJSONFromBundle][->pathForResource] The file could not be located\nFile : '\(filename).json'")
}
guard let data = try? NSData(contentsOfFile: path, options:NSDataReadingOptions()) else {
throw EHError.NSData("[EasyHelper][loadJSONFromBundle][->NSData] The absolute path of the file not find\nFile : '\(filename)'")
}
guard let jsonDict = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions()) as? Dictionary<String, AnyObject> else {
throw EHError.JSON("[EasyHelper][loadJSONFromBundle][->NSJSONSerialization]Error.InvalidJSON Level file '\(filename)' is not valid JSON")
}
return jsonDict
}
}
If I do not do a mistake, for you is that
/**
Loads a JSON file from the app bundle into a new dictionary
- parameter filename: File name
- throws: EHError : PathForResource / NSData / JSON
- returns: [String : AnyObject]
*/
static func loadJSONFromBundle(filename: String, nameJson:String) throws -> [String : AnyObject] {
guard let path = NSBundle.mainBundle().pathForResource(filename, ofType: "json") else {
throw EHError.Nil("[EasyHelper][loadJSONFromBundle][->pathForResource] The file could not be located\nFile : '\(filename).json'")
}
guard let data = try? NSData(contentsOfFile: path, options:NSDataReadingOptions()) else {
throw EHError.NSData("[EasyHelper][loadJSONFromBundle][->NSData] The absolute path of the file not find\nFile : '\(filename)'")
}
guard let jsonDict = try NSJSONSerialization.JSONObjectWithData(data, options: .AllowFragments) as? [String : AnyObject] else {
throw EHError.JSON("[EasyHelper][loadJSONFromBundle][->NSJSONSerialization] Invalid JSON\n nameJson '\(nameJson)'\nFile '\(filename)'")
}
return jsonDict
}
I am currently doing a map-reduce with the c# driver in Mongo.
I have got it working where the JSON is as follows:
{ "_id" : CSUUID("ef53b163-699c-462f-9135-b81bad115635"), "value" : { "firstname" : "Joe", "lastname" : "Bloggs", "groupName" : "System Wide Access" } }
What I want to do is flatten this object so as I don't have an Id and Value field, I only want the actual properties that are in my read model class.
Here is my code as it is currently:
const string mapUserGroupMember = #"function ()
{
var output = {groupId:this.GroupId, firstname:this.Forename, lastname:this.Surname, groupName:null}
emit(this.GroupId, output);
}";
const string mapUserGroupName = #"function ()
{
var output = {groupId:this._id, firstname:null, lastname:null, groupName:this.Name}
emit(this._id, output);
}";
var reduceF = #"function(key, values) {
var results = {firstname:null, lastname:null , groupName:null};
values.forEach(function(v){
if(results.firstname ==null){
results.firstname = v.firstname
}
if(results.lastname ==null){
results.lastname = v.lastname
}
if(results.groupName ==null){
results.groupName = v.groupName
}
});
return results;
};";
var groupMemberCollection = database.GetCollection("UserGroupMemberReadModel");
var groupNameCollection = database.GetCollection("UserGroupNameReadModel");
var options = new MapReduceOptionsBuilder();
options.SetOutput(MapReduceOutput.Reduce("MergedData"));
var results = groupNameCollection.MapReduce(mapUserGroupName, reduceF, options);
results = groupMemberCollection.MapReduce(mapUserGroupMember, reduceF, options);
I want to be able to call var collection = database.GetCollection("MergedData").AsQueryable<ReadModel>();
Any help would be appreciated.