The search engine can use structured data to show expanded results from books. This helps the user go directly to the pages of your site to buy or read the book.
Marking allows you to add actions such as reading or renting, which become visible directly in the search. To do this, use special data types and correct links.
For implementation, it is necessary to prepare a feed with a description of books and actions. It must comply with certain technical requirements and pass validation.
Distinguish the concepts of "work" and "publication". A work is the general essence of the book, and the publication is its specific form, format and identifier. In each record, it is necessary to specify unique ID, ISBN, book format and language.
For each publication of the book, it is required to indicate its identifier, format (for example, an electronic book, paper publication), language, ISBN and the current link to the book page on your site.
Readaction - Action for Reading, BorrowAct - for rent. Each action should contain a direct link, platform (web, Android, iOS), an accessibility region and access parameters: purchase, subscription or free access.
FIDE file should be in JSON format. Size - up to 1 GB. All objects should contain unique ID, URL values and links template. Compression is allowed to the archives. Zip, .gz and others.
Before the publication, check the feed through the validator. Make sure of the correctness of all meanings and links. Place the file on the HTTPS server and hand over for verification.
It is recommended to update FID daily. Delete inaccessible books and correctly indicate the terms of availability. Make sure the URL lead to the current pages of your site.
Each feed should start with the DataFeed object containing a list of books or libraries. You can not mix data types in one feed. Be sure to indicate the date of the last update.
The book as a work should include a title, author, ID, URL, as well as a list of publications via Workexample. The publication includes format, language, ISBN and actions (for example, Readaction).
Each action should contain a platform, type of action, access parameters and region. Be sure to indicate the full links leading to the page of your site with the corresponding content.
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