Swift

Create more Complex JSON Document

See more JSON Examples

Sample code to create the following JSON document:

    {  
        "Title": "The Cuckoo's Calling",  
        "Author": "Robert Galbraith",  
        "Genre": "classic crime novel",  
        "Detail": {  
            "Publisher": "Little Brown",  
            "Publication_Year": 2013,  
            "ISBN-13": 9781408704004,  
            "Language": "English",  
            "Pages": 494  
        },  
        "Price": [  
            {  
                "type": "Hardcover",  
                "price": 16.65  
            },  
            {  
                "type": "Kindle Edition",  
                "price": 7.00  
            }  
        ]  
    }  

Swift

func chilkatTest() {
    var success: Bool = false

    let json = CkoJsonObject()!

    // The only reason for failure in the following lines of code would be an out-of-memory condition..

    // An index value of -1 is used to append at the end.
    var index: Int = -1

    success = json.addString(at: -1, name: "Title", value: "The Cuckoo's Calling")
    success = json.addString(at: -1, name: "Author", value: "Robert Galbraith")
    success = json.addString(at: -1, name: "Genre", value: "classic crime novel")

    // Let's create the Detail JSON object:
    let detail = CkoJsonObject()!
    json.appendObject2(name: "Detail", jsonObj: detail)

    success = detail.addString(at: -1, name: "Publisher", value: "Little Brown")
    success = detail.addInt(at: -1, name: "Publication_Year", value: 2013)
    success = detail.addNumber(at: -1, name: "ISBN-13", numericStr: "9781408704004")
    success = detail.addString(at: -1, name: "Language", value: "English")
    success = detail.addInt(at: -1, name: "Pages", value: 494)

    // Add the array for Price
    let aPrice = CkoJsonArray()!
    json.appendArray2(name: "Price", jarr: aPrice)

    // Entry in aPrice will be a JSON object.

    // Append a new/empty ojbect to the end of the aPrice array.
    let priceObj = CkoJsonObject()!

    aPrice.addObjectAt2(index: -1, json: priceObj)
    success = priceObj.addString(at: -1, name: "type", value: "Hardcover")
    success = priceObj.addNumber(at: -1, name: "price", numericStr: "16.65")

    aPrice.addObjectAt2(index: -1, json: priceObj)
    success = priceObj.addString(at: -1, name: "type", value: "Kindle Edition")
    success = priceObj.addNumber(at: -1, name: "price", numericStr: "7.00")

    json.emitCompact = false
    print("\(json.emit()!)")

}