ABAP Format to json

Converting ABAP Internal Table to JSON & JSON to ABAP

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The class /UI2/CL_JSON provides methods such as Serialize & Deserialize to convert ABAP to JSON and vice-versa.

Below code converts ABAP internal table to JSON String.

Output- JSON String

In above output the field names are in capital. We can use preety mode to make it different.

Pass – preety name and check the output.

The field names are now- lower case.

We can use Deserialize method to convert a JSON string to ABAP Internal table.

Output-

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TYPES BEGIN OF ty_scarr,
carrid TYPE scarr-carrid,
carrname TYPE scarr-carrname,
END OF ty_scarr.

DATA lt_scarr1 TYPE TABLE OF ty_scarr,
lt_scarr2 TYPE TABLE OF ty_scarr,
lv_json TYPE string.

SELECT carrid, carrname FROM scarr INTO TABLE @lt_scarr1 UP TO 3 ROWS.

ui2cl_json=serialize(
EXPORTING
data = lt_scarr1 Data to serialize
pretty_name = ui2cl_json=pretty_mode-low_case Pretty Print property names
RECEIVING
r_json = lv_json ). JSON string

WRITE lv_json.

ui2cl_json=deserialize(
EXPORTING
json = lv_json JSON string
CHANGING
data = lt_scarr2 ). Data to serialize

cl_demo_output=display_data( lt_scarr2 ).

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