GET api/book/epub/{ean}/check

V1 - Test the availability of an encrypted ePub file for the specified EAN
This method will check the availability of an epub for the specified EAN. If the EAN is not available for the vendor, a statuscode 403 will be returned.

Request Information

URI Parameters

Name	Description	Type	Additional information
ean	EAN	string	Required

Body Parameters

None.

Response Information

Resource Description

YindoOfflineBook

Name	Description	Type	Additional information
bookID	The ID for this book	integer	None.
ean	A 13 digit EAN. This starts with 978- for 'real' books and with 888- for Yindo Custom Books	string	None.
altean	A 13 digit EAN. This starts with 978- for 'real' books and with 888- for Yindo Custom Books	string	None.
title	The title for this book.	string	None.
encryptedOn	The encryptiondate for this books data.	date	Data type: DateTime
validUntil	The expirationdate for this books data.	date	Data type: DateTime
dataFormat	The format of the encrypted content.	DataFormats	None.
fileCount	The number of files in the encrypted zipfile	integer	None.
fileSize	The total size in bytes of all unencrypted, uncompressed files in the encrypted zipfile	integer	None.
bookData	Encrypted data (AES-CBC), base64 encoded The data contains the following blocks needed for decryption. 32 bytes salt 16 bytes nonce n bytes payload 32 bytes HMac-Tag NOTE: this data needs to be base64 decoded first!	string	None.
statusCode	A statuscode indicating succes or failure	StatusCode	None.

Response Formats

application/json, text/json

Sample:

{
  "bookID": 1,
  "ean": "sample string 2",
  "altean": "sample string 3",
  "title": "sample string 4",
  "encryptedOn": "2026-02-20T15:54:33.2542462+01:00",
  "validUntil": "2026-02-20T15:54:33.2542462+01:00",
  "dataFormat": 1,
  "fileCount": 7,
  "fileSize": 8,
  "bookData": "sample string 9",
  "statusCode": 0
}

text/javascript

Sample:

{"bookID":1,"ean":"sample string 2","altean":"sample string 3","title":"sample string 4","encryptedOn":"2026-02-20T15:54:33.2542462+01:00","validUntil":"2026-02-20T15:54:33.2542462+01:00","dataFormat":1,"fileCount":7,"fileSize":8,"bookData":"sample string 9","statusCode":0}

application/xml, text/xml

Sample:

<YindoOfflineBook xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Yindo">
  <altean>sample string 3</altean>
  <bookData>sample string 9</bookData>
  <bookID>1</bookID>
  <dataFormat>ePub</dataFormat>
  <ean>sample string 2</ean>
  <encryptedOn>2026-02-20T15:54:33.2542462+01:00</encryptedOn>
  <fileCount>7</fileCount>
  <fileSize>8</fileSize>
  <statusCode>Success</statusCode>
  <title>sample string 4</title>
  <validUntil>2026-02-20T15:54:33.2542462+01:00</validUntil>
</YindoOfflineBook>