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Version: 8.1

system.util.jsonEncode

This function is used in Python Scripting.

Description​

Takes a Python object such as a list or dictionary and converts into a JSON string.

Client Permission Restrictions​

This scripting function has no Client Permission restrictions.

Syntax​

system.util.jsonEncode(pyObj, [indentFactor])

Parameters​

TypeParameterDescription
AnypyObjThe Python object to encode into JSON such as a Python list or dictionary.
IntegerindentFactorThe number of spaces to add to each level of indentation for prettyprinting. [optional]

Returns​

String - The encoded JSON string.

Scope​

Gateway, Vision Client, Perspective Session

JSON to Python Mapping​

The table below lists possible Python types, and how they map to JSON objects.

JSON TypeMapped Python Type
Boolean (true/false)Boolean (True/False)
StringString
NumericNumber (Float, Integer)
nullNone
ArraySequence
ObjectDictionary
New in 8.1.28
Float
BigDecimal (Java)

Code Examples​

Example #1
# The following example builds a Python dictionary, and converts it to a JSON string

# Build the Python dictionary
employeeDict = {"employees":[{"firstName":"John", "lastName":"Doe"},{"firstName":"Anna", "lastName":"Smith"},{"firstName":"Peter", "lastName":"Jones"}]}

# Convert the dictionary and store the resulting JSON string in a variable.
jsonString = system.util.jsonEncode(employeeDict)