Table of Contents

JSON

All APIs support the input and output of JSON data.

JSON is a text format to represent simple data structures. Libraries to read and write JSON data are available for almost all programming languages. See the extensive table on http://json.org/.

For more information about JSON, see JSON on Wikipedia.

Date and Time

Date/time values are always in UTC in the format YYYY-MM-DDThh:mm:ss (e.g. 1997-07-16T19:20:30). For more information, see:

• http://www.w3.org/TR/xmlschema-2/#dateTime
• http://www.w3.org/TR/NOTE-datetime

Unix Time

Number of seconds that have elapsed since midnight Coordinated Universal Time (UTC), 1 January 1970, not counting leap seconds.

• http://en.wikipedia.org/wiki/Unix_epoch

Language Code

Language codes are always a 2-character long lower-case string (e.g. en, de, ar). For more information, see:

• http://en.wikipedia.org/wiki/ISO_639-1

Unique Identifier

Unique identifiers are generated as 22-character long case-sensitive strings (e.g. fD9EDV2YROG7pSkBa-hLPg).

Geographical Location

Geographical locations include latitude followed by longitude and can be expressed as:

• Single point: string with latitude and longitude as floating point numbers (separated by comma), e.g. 47.374463,8.52375.
• Rectangle: string with latitude and longitude as floating point numbers (separated by comma) of the top-left and bottom-right corner (separated by semi-colon), e.g. 47.374463,8.52375;47.374015,8.524908.

For more information, see:

• http://en.wikipedia.org/wiki/Geographic_coordinate_system