CODEWITHSUNDEEP
jsonswiftnsdictionarynsjsonserialization
1110
1110

Reputation: 6839

Getting invalid JSON array from array of dictionaries in swift

I want to create JSON array string from array that I have. But I am getting invalid JSON.
This is what I want:

[
    {
        "validationCode": null,
        "FirstName": "Samer",
        "LastName": "Shame",
        "MobileNumber": "0991992993",
        "SimNumber": null,
        "Email": null,
        "PhoneNumber": "0991992994",
        "Name": "Abo Alshamat",
        "ID": 1
    },
    {
        "validationCode": null,
        "FirstName": "Ahmad",
        "LastName": "Ali",
        "MobileNumber": "0992993994",
        "SimNumber": null,
        "Email": null,
        "PhoneNumber": "0992993995",
        "Name": "AL-Kamal",
        "ID": 2
    }
]

And this is what I get:

[
    [
        "validationCode": null,
        "FirstName": "Samer",
        "LastName": "Shame",
        "MobileNumber": "0991992993",
        "SimNumber": null,
        "Email": null,
        "PhoneNumber": "0991992994",
        "Name": "Abo Alshamat",
        "ID": 1
    ],
    [
        "validationCode": null,
        "FirstName": "Ahmad",
        "LastName": "Ali",
        "MobileNumber": "0992993994",
        "SimNumber": null,
        "Email": null,
        "PhoneNumber": "0992993995",
        "Name": "AL-Kamal",
        "ID": 2
    ]
]

This is code:

var data = [NSDictionary]()
for item in someList {
    var d = ["validationCode": null,
            "FirstName": item.prop1,
            "LastName": item.prop2,
            "MobileNumber": item.prop3...]

    data.append(d)
}
var bytes = NSJSONSerialization.dataWithJSONObject(data, options: NSJSONWritingOptions.allZeros, error: nil)
var jsonObj = NSJSONSerialization.JSONObjectWithData(bytes!, options: nil, error: nil) as! [Dictionary<String, String>]

What I should do to get standard JSON format?

Upvotes: 1

Views: 1072

Answers (1)

Arbitur
Arbitur

Reputation: 39091

You are converting a Swift CollectionType into JSON (bytes) and then converting it back (jsonObj).

In this case bytes is the JSON as NSData and jsonObj is a Swift CollectionType.

So when you print(jsonObj) you are not printing the JSON, you are printing the collection.

To get the real JSON 

print(NSString(data: bytes, encoding: NSUTF8StringEncoding))

Here you will see the proper JSON format.

In Swift JSON is a String. Not an object.

Your code should look lie this:

let json = NSJSONSerialization.dataWithJSONObject(data, options: nil, error: nil)!

let jsonString = NSString(data: json, encoding: NSUTF8StringEncoding)!

println(jsonString)

Upvotes: 2

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