Single work expression

Fetch a single work expression using an FRBR URI.

Fetch a single work expression

Query Parameters




Should the response include a generated coverpage? Use 1 for true, anything else for false. Default: 1. HTML-only.



The fully-qualified URL prefix to use when generating links to embedded media, such as images.



The fully-qualified URL to use when resolving references to other Akoma Ntoso documents. Use no or none to disable. Defaults to using the Laws.Africa resolver.



If this is 1 , the response will be a complete HTML document, including CSS, that can stand on its own. Otherwise it will be an HTML fragment. Default: false. HTML-only.

Supported content types: JSON, HTML, PDF, ePub, zip

Expressions at specific points in time

Works may be amended and change over time. You can fetch different amended versions of a work by specifying the language and date in the FRBR URI of the request.

The available points in time of a work are listed in the points_in_time field of the JSON description of the work. Each point in time includes a date and a list of expressions available at that date, one for each available language.

To fetch the very first expression of a work, use frbr-uri/:language@, for example: /akn/za/act/1998/5/eng@.

To fetch a specific point in time, use frbr-uri/:language@:date, for example: /akn/za/act/1998/5/eng@2014-01-17.

To fetch the most recent point in time at or before a specific date, use frbr-uri/:language::date, for example /akn/za/act/1998/5/eng:2014-01-17.

The .format part of the FRBR URI is placed after the @YYYY-MM-DD part.

If you use @ to specify a particular date and the API doesn't have a version at exactly that date, it will return a 404 response. If you need the expression of the work closest to a particular date, use : instead.

Date formats for specific points in time

Date Format


Example Expression FRBR URI


Very first expression of a work.



Expression at the specific date.



Most recent expression at or before a date.



The most recent expression at or before today's date. Equivalent to using : with today's date.


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