The ABL support for serializing data objects to and from JSON parallels the ABL support for serializing those data objects into XML. The ABL support for JSON includes the following:

• Serializing to and from JSON with methods on ProDataSet, temp-table, and temp-table buffer object handles
• Serializing before-image data for ProDataSets
• Serializing fields with data types based on ABL class definitions (see the WRITE-JSON( ) entry in ABL Reference for more details and restrictions)
• Affecting JSON serialization through attributes on the data object handles
• Nesting temp-tables
• Hiding foreign fields
• Omitting initial values
• Identifying JSON strings through an attribute on the WEB-CONTEXT system handle
• Built in ABL objects to represent JSON