Hello! I understand authentication using OAuth. My task is to send a POST request to the server, passing some data. With an empty POST request (without the transmitted data in the body), I figured it out. The signature on the server comes right. The server only informs me that I did not send any data. In this regard, I have two interrelated questions. Explain to me, please, do I need to add this data, which should be sent in the request body, to the base string for further generation of oauth_signature? And actually, in what form will this data after the header in the request I have to send to the server? An example of the data that should be transmitted to the server:
category:1 title:Енисей description:Краткое описание message:Полное описание other1:Омск other2:ул. Пролетарская, 22 other3:54.9782695,73.3381964 other4:88002000600 other5:direktor@zarplaty.net
P. s under the second question I meant not what data I need to send, but how correctly should I form them in the request body (name 1: value 1 or name 1 = value 1)? And what between these data should be signs (comma or &)? The API documentation itself does not show the final appearance of the request body. I only know that it should not be json, but a simple associative array (shown in the example in the php documentation). But I am writing an application in another language. Thank you for your reply!