document_id	int	Warehouse document identifier from BaseLinker
get_external	bool	false (by default) - download document file generated by BaseLinker. true - download a document from an external accounting system (if available). If an external document file does not exist, a document in BaseLinker format will be returned

The method returns the data in JSON format.

status	varchar(30)	SUCCESS - request executed correctly ERROR - an error occurred during an API request. Error details will be described in 2 additional returned fields: error_message and error_code
file	text	Document PDF file in binary format encoded in base64, with prefix "data:"
document_number	varchar(100)	Document number

Input data:
{ "document_id": 4521 } Output data:
{ "status": "SUCCESS", "file": "data:4AAQSkZJRgABA[...]", "document_number": "WZ\/2026\/03\/001" } A sample request in PHP:
<?php $methodParams = '{ "document_id": 4521 }'; $apiParams = [ "method" => "getInventoryDocumentFile", "parameters" => $methodParams ]; $curl = curl_init("https://api.baselinker.com/connector.php"); curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_HTTPHEADER, ["X-BLToken: xxx"]); curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($apiParams)); $response = curl_exec($curl);