Chilkat Examples

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DataFlex Examples

ASN.1
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
Facebook
FileAccess
Firebase
GMail REST API
GeoOp
Google APIs
Google Calendar
Google Cloud Storage
Google Drive
Google Sheets
Gzip
HTML-to-XML/Text
HTTP
HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)

Java KeyStore (JKS)
Jira
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
PayPal
Peoplevox
QuickBooks
REST
REST Misc
RSA Encryption
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Shopify
Socket/SSL/TLS
Spider
Stream
Stripe
SugarCRM
Tar Archive
Twitter
Upload
VoiceBase
Walmart
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Xero
Zip
curl
eBay

 

 

 

(DataFlex) 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
    }
}

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoJson
    String sJsonStr
    Boolean iSuccess
    Variant vImageObj
    Handle hoImageObj
    Variant vThumbObj
    Handle hoThumbObj
    String sTemp1
    Integer iTemp1
    Integer iTemp2

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End

    //  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.
    Move '{"name": "donut","image":{"fname": "donut.jpg","w": 200,"h": 200},"thumbnail":{"fname": "donutThumb.jpg","w": 32,"h": 32}}' To sJsonStr

    Get ComLoad Of hoJson sJsonStr To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoJson To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Get the "image" object.
    Get ComObjectOf Of hoJson "image" To vImageObj
    If (IsComObject(vImageObj)) Begin
        Get Create (RefClass(cComChilkatJsonObject)) To hoImageObj
        Set pvComObject Of hoImageObj To vImageObj
    End
    If (IsNullComObject(vImageObj)) Begin
        Showln "image object not found."
        Procedure_Return
    End

    Get ComStringOf Of hoImageObj "fname" To sTemp1
    Get ComIntOf Of hoImageObj "w" To iTemp1
    Get ComIntOf Of hoImageObj "h" To iTemp2
    Showln "image: fname=" sTemp1 ", width=" iTemp1 ", height=" iTemp2

    Send Destroy of hoImageObj

    //  Get the "thumbnail" object.
    Get ComObjectOf Of hoJson "thumbnail" To vThumbObj
    If (IsComObject(vThumbObj)) Begin
        Get Create (RefClass(cComChilkatJsonObject)) To hoThumbObj
        Set pvComObject Of hoThumbObj To vThumbObj
    End
    If (IsNullComObject(vThumbObj)) Begin
        Showln "thumbnail object not found."
        Procedure_Return
    End

    Get ComStringOf Of hoThumbObj "fname" To sTemp1
    Get ComIntOf Of hoThumbObj "w" To iTemp1
    Get ComIntOf Of hoThumbObj "h" To iTemp2
    Showln "thumbnail: fname=" sTemp1 ", width=" iTemp1 ", height=" iTemp2

    Send Destroy of hoThumbObj


End_Procedure

 

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