CkPython Requires Chilkat v11.7.0+

Validate a QR Code Request

See more QR Code Examples

Demonstrates the validate operation, which examines a request without producing anything. The scope says how far to look: definition checks the options, capacity also checks that the data fits a QR symbol, and layout also checks the rendered size against the limits. The response has a validationStatus of valid or invalid, a list of checks, and findings[] describing what is wrong. A request that cannot be understood at all, such as one with a misspelled option, still makes the call fail in the usual way. CkPython

import sys
import chilkat

success = False

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

fmt = chilkat.CkFormats()
jsonOut = chilkat.CkJsonObject()

json = chilkat.CkJsonObject()
json.UpdateString("target","symbol")
json.UpdateString("validation.scope","capacity")
json.UpdateString("payload.text","https://www.chilkatsoft.com/barcode_overview.asp")

success = fmt.QrCode("validate",json,jsonOut)
if (success == False):
    print(fmt.lastErrorText())
    sys.exit()

print("status: " + jsonOut.stringOf("validationStatus"))
n = jsonOut.SizeOfArray("checks")
for i in range(0,n):
    jsonOut.put_I(i)
    print("  " + jsonOut.stringOf("checks[i].name") + ": " + jsonOut.stringOf("checks[i].status"))

#  The same text does not fit version 2 at error-correction level H.
json.UpdateInt("encoding.qr.maxVersion",2)
json.UpdateString("encoding.qr.errorCorrection","H")

success = fmt.QrCode("validate",json,jsonOut)
if (success == False):
    print(fmt.lastErrorText())
    sys.exit()

print("status: " + jsonOut.stringOf("validationStatus"))
n = jsonOut.SizeOfArray("checks")
for i in range(0,n):
    jsonOut.put_I(i)
    print("  " + jsonOut.stringOf("checks[i].name") + ": " + jsonOut.stringOf("checks[i].status"))

n = jsonOut.SizeOfArray("findings")
for i in range(0,n):
    jsonOut.put_I(i)
    print("finding: " + jsonOut.stringOf("findings[i].code") + " at " + jsonOut.stringOf("findings[i].path"))
    print("  " + jsonOut.stringOf("findings[i].message"))

#  Sample output:

#  status: valid
#    definition: passed
#    capacity: passed
#    layout: notApplicable
#  status: invalid
#    definition: passed
#    capacity: failed
#    layout: notApplicable
#  finding: capacityExceeded at /payload
#    the payload does not fit any admitted QR version at the selected error-correction level