(CkPython) JSON: Nested Objects

Here we have a JSON object that contains nested JSON objects. This example demonstrates how to access the contents of the nested objects.

{
  "name": "donut",
  "image":
    {
    "fname": "donut.jpg",
    "w": 200,
    "h": 200
    },
  "thumbnail":
    {
    "fname": "donutThumb.jpg",
    "w": 32,
    "h": 32
    }
}

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import sys
import chilkat

json = chilkat.CkJsonObject()

# This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
# The presence of whitespace chars for pretty-printing makes no difference to the Load
# method. 
jsonStr = "{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}"

success = json.Load(jsonStr)
if (success != True):
    print(json.lastErrorText())
    sys.exit()

# Get the "image" object.
# imageObj is a CkJsonObject
imageObj = json.ObjectOf("image")
if (json.get_LastMethodSuccess() == False):
    print("image object not found.")
    sys.exit()

print("image: fname=" + imageObj.stringOf("fname") + ", width=" + str(imageObj.IntOf("w")) + ", height="\
     + str(imageObj.IntOf("h")))

# Get the "thumbnail" object.
# thumbObj is a CkJsonObject
thumbObj = json.ObjectOf("thumbnail")
if (json.get_LastMethodSuccess() == False):
    print("thumbnail object not found.")
    sys.exit()

print("thumbnail: fname=" + thumbObj.stringOf("fname") + ", width=" + str(thumbObj.IntOf("w")) + ", height="\
     + str(thumbObj.IntOf("h")))