SAP ABAP JSON XML

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ARTICLE

JSON-XML - XML Representation of JSON
JSON XML is an SAP-specific representation of JSON data in XML format. The single values, arrays, and objects in JSON are represented as followed in XML.
ITOC

Single Values

Character-like values '...' -> <(><<)>str>...<(><<)>/str>

Number values ... -> <(><<)>num>...<(><<)>/num>

Boolean values true -> <(><<)>bool>true<(><<)>/bool> false -> <(><<)>bool>false<(><<)>/bool>

Null values null -> <(><<)>null />

Data Structures

Arrays [...] -> <(><<)>array>...<(><<)>/array>
The components of arrays, separated by commas, are mapped as subelements of the element <(><<)>array>, but the type-specific mapping rule applies to each element.

Objects {...} -> <(><<)>object>...<(><<)>/object>
The components of objects, separated by commas, are mapped as subelements of the element <(><<)>object>. There are two representation methods:

'n':... -> <(><<)>... name='n'>...<(><<)>/...>

'n':... -> <(><<)>member name='n'><(><<)>...>...<(> <<)>/...><(><<)>/member>
In the shorter method, used by default, a component is mapped like an element of an array, with the name n added to the type-specific XML element of the component as the content of the attribute name.
In the second longer method, the type-specific XML element of a component is nested in an additional element <(><<)>member>, which then has the attribute name with the name of the component.

Notes

In the longer alternative for object components, each component in JSON-XML is identified clearly by a <(><<)>member> element. This can make it easier to distinguish objects of arrays if only partial fragments of JSON data are being edited.

The longer alternative for object components with <(><<)>member> elements can be a better option for simple transformations, when ABAP data is serialized to JSON or deserialized from JSON.

A JSON writer that renders JSON-XML to JSON accepts both alternatives for object components. A JSON reader that parses JSON data to JSON-XML creates the shorter variant by default. To create the longer variant with <(><<)>member> elements, the method SET_OPTION of the interface IF_SXML_READER can be used to set the option IF_SXML_READER=>CO_OPT_SEP_MEMBER.

Examples

The program DEMO_JSON_XML shows examples of the default JSON-XML representation of valid JSON data.

For information about the rendering and parsing of JSON-XML representations in both alternatives for object components, see Object Components in JSON-XML.