(CkPython) Get the Root of a JSON Document

Demonstrates how to get back to the JSON root object from anywhere in the JSON document. This example uses the following JSON document:

{
  "flower": "tulip",
  "abc":
    {
    "x": [
       { "a" : 1 },
       { "b1" : 100, "b2" : 200 },
       { "c" : 3 }
    ],
    "y": 200,
    "z": 200
    }
}

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux

import sys
import chilkat

success = False

json = chilkat.CkJsonObject()

jsonStr = "{\"flower\": \"tulip\",\"abc\":{\"x\": [{ \"a\" : 1 },{ \"b1\" : 100, \"b2\" : 200 },{ \"c\" : 3 }],\"y\": 200,\"z\": 200}}"

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

# Get the "abc" object.
abcObj = chilkat.CkJsonObject()
success = json.ObjectOf2("abc",abcObj)
if (success == False):
    print(json.lastErrorText())
    sys.exit()

# Side note: The JSON of a sub-part of the document can be emitted from any JSON object:
abcObj.put_EmitCompact(False)
print(abcObj.emit())

# Navigate to the "x" array
xArray = chilkat.CkJsonArray()
abcObj.ArrayOf2("x",xArray)

# Navigate to the 2nd object contained within the array.  This contains members b1 and b2
bObj = chilkat.CkJsonObject()
xArray.ObjectAt2(1,bObj)

# Show that we're at "b1/b2".
# The value of "b1" should be "200"
print("b2 = " + str(bObj.IntOf("b2")))

# Now go back to the JSON doc root:
docRoot = chilkat.CkJsonObject()
bObj.GetDocRoot2(docRoot)

# We'll skip the null check and assume it's non-null...

# Pretty-print the JSON doc from the root to show that this is indeed the root.
docRoot.put_EmitCompact(False)
print(docRoot.emit())