Appending JSON array with values from the array

Question

I have a json array with the following structure

{
        "connection": {
            "established": "yes"
        },
        "ping": {
            "server": "thirteen"
        }
    }

also i have a simple array of server names called servers

my goal is to append the values from the servers array to the Jsonarray - copying the "connection", "established", "yes", "ping", "server" values and just modifying the "thirteen" value.

So that the end result would look something like this

{
        "connection": {
            "established": "yes"
        },
        "ping": {
            "server": "fourteen"
        }
    }, 
{
        "connection": {
            "established": "yes"
        },
        "ping": {
            "server": "fifteen"
        }
    }

e.t.c.

I tried implementing the SwiftyJSON array library, but didn't really understand how to append values to the json itself.

Is there a way to manage it?

Appreciate any insights!

I just added the swift library file, I've seen some examples of for loops on swiftly github, but no more than that — David Robertson
– David Robertson, Commented Sep 26, 2015 at 7:06
That's not an array, it's a dictionary. JSON arrays are represented with square brackets [] — vadian
– vadian, Commented Sep 26, 2015 at 7:59
Yes you are absolutely correct. Thank you for clarification. How should I proceed with value appending? @vadian — David Robertson
– David Robertson, Commented Sep 26, 2015 at 12:09
to process the dictionaries in Swift create an Array, convert the JSON string to dictionary with SwiftyJSON, and append the dictionary to the array. — vadian
– vadian, Commented Sep 26, 2015 at 13:33

Abhinav · Accepted Answer · 2015-09-26 13:12:10Z

1

I hope this is what you are looking for. It took me some time to understand what you are asking for :)

// Initial Data - So called JSON Array
var dict1 = ["connection" : ["established": "yes"], "ping" : ["server" : "twelve"]]
var dict2 = ["connection" : ["established": "yes"], "ping" : ["server" : "thirteen"]]
var array = [dict1, dict2]

// Servers Array
var servers = ["fourteen", "fifteen"]

// First lets filter out dictionary where ping.server = thirteen
let predicate = NSPredicate(format: "ping.server = %@", "thirteen")

// Filtered dictionary
var targetDict = array.filter({
    predicate.evaluateWithObject($0)
})[0]

// Now lets loop on servers and modify filtered dictionary and add to parent array
for server in servers {
    targetDict["ping"]!["server"]! = server
    array.append(targetDict)
}

print("\(array)")

answered Sep 26, 2015 at 13:12

Abhinav

38.2k43 gold badges196 silver badges314 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

David Robertson Over a year ago

works as a charm! thank you ! sorry for not being clear enough

Abhinav Over a year ago

No worries... Glad it helped!

Wraithseeker · Accepted Answer · 2015-09-26 07:50:09Z

0

Try this using SwiftyJSON (Not tested)

Json["ping"] as NSDictionary)["server"] as NSString = "Your Value"

answered Sep 26, 2015 at 7:50

Wraithseeker

1,9042 gold badges21 silver badges36 bronze badges

1 Comment

David Robertson Over a year ago

not sure how it's supposed to work... once i insert the code, i'm getting "Expecting expression for size of array type" error. And what about the ")" symbol, should it be there?

Collectives™ on Stack Overflow

Appending JSON array with values from the array

2 Answers 2

2 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related