DSS REST API values for numbers and non-numbers

HirokoGoto_1

Quesitons on DSS REST API

(1) Is it correct to assume that values other than numbers are enclosed in double quotes ("")?

(2) If the value is empty, are numbers are null (or null codes for EoD/Elektron EoD/Price History) and other types enclosed in double quotes (""")?

Regards,

Hiroko

Jirapongse

@HirokoGoto_1

Thank you for reaching out to us.

I checked the LSEG DataScope Select Data Content Guide and found that the content fields support the following data types:

For example:

"Exchange Description": "The Stock Exchange of Hong Kong Ltd",
"High Price": 74.5,
"Trade Date": "2026-04-02",

The date data type is also enclosed in double quotes.

It also uses null for those data types.

"Settlement Date": null,

"Settlement Price": null,

"Underlying RIC": null,

I couldn’t find an empty string ("") in my test request. However, it’s best to contact the DSS support team directly to confirm whether an empty string ("") can be used for the TEXT and DATE data types.

In my view, the application should be able to handle both null values and empty strings for the TEXT and DATE data types.