Tcl

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  
            }  
        ]  
    }  

Tcl

load ./chilkat.dll

set success 0

set json [new_CkJsonObject]

# 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.
set index -1

set success [CkJsonObject_AddStringAt $json -1 "Title" "The Cuckoo's Calling"]
set success [CkJsonObject_AddStringAt $json -1 "Author" "Robert Galbraith"]
set success [CkJsonObject_AddStringAt $json -1 "Genre" "classic crime novel"]

# Let's create the Detail JSON object:
set detail [new_CkJsonObject]

CkJsonObject_AppendObject2 $json "Detail" $detail

set success [CkJsonObject_AddStringAt $detail -1 "Publisher" "Little Brown"]
set success [CkJsonObject_AddIntAt $detail -1 "Publication_Year" 2013]
set success [CkJsonObject_AddNumberAt $detail -1 "ISBN-13" "9781408704004"]
set success [CkJsonObject_AddStringAt $detail -1 "Language" "English"]
set success [CkJsonObject_AddIntAt $detail -1 "Pages" 494]

# Add the array for Price
set aPrice [new_CkJsonArray]

CkJsonObject_AppendArray2 $json "Price" $aPrice

# Entry in aPrice will be a JSON object.

# Append a new/empty ojbect to the end of the aPrice array.
set priceObj [new_CkJsonObject]

CkJsonArray_AddObjectAt2 $aPrice -1 $priceObj
set success [CkJsonObject_AddStringAt $priceObj -1 "type" "Hardcover"]
set success [CkJsonObject_AddNumberAt $priceObj -1 "price" "16.65"]

CkJsonArray_AddObjectAt2 $aPrice -1 $priceObj
set success [CkJsonObject_AddStringAt $priceObj -1 "type" "Kindle Edition"]
set success [CkJsonObject_AddNumberAt $priceObj -1 "price" "7.00"]

CkJsonObject_put_EmitCompact $json 0
puts [CkJsonObject_emit $json]

delete_CkJsonObject $json
delete_CkJsonObject $detail
delete_CkJsonArray $aPrice
delete_CkJsonObject $priceObj