An addition to my question. Let's look at spreadsheet developper's guide http://code.google.com/intl/ru-RU/apis/spreadsheets/data/3.0/developers_guide.html#Auth
1) As I said authorizing does not work in my attempts 2) Let's look at "Specifying a version" I read: To specify a version number, use the GData-Version HTTP header: GData- Version: 3.0 I could not find the example of how to write version in requests described in the document below 3 ) Let's look at "Retrieving a list of spreadsheets" section <entry gd:etag=""FDHGCHnx12""> what is FDHGCHnx12 ? <id>https://spreadsheets.google.com/feeds/spreadsheets/tNXTXMh83yMWLVJfEgOWTvQ</id> What is tNXTXMh83yMWLVJfEgOWTvQ ? Is it Client ID given after registering my application? But it does not look so, because my Client ID: 400078234114.apps.googleusercontent.com <updated>2011-05-27T15:08:37.102Z</updated> <category scheme="http://schemas.google.com/spreadsheets/2006"; term="http://schemas.google.com/spreadsheets/2006#spreadsheet"/> <title>My Spreadsheet</title> <content type="application/atom+xml;type=feed" src="https://spreadsheets.google.com/feeds/worksheets/tNXTXMh83yMWLVJfEgOWTvQ/private/full"/> <link rel="http://schemas.google.com/spreadsheets/2006#tablesfeed"; type="application/atom+xml" href="https://spreadsheets.google.com/feeds/tNXTXMh83yMWLVJfEgOWTvQ/tables"/> <link rel="alternate" type="text/html" href="https://spreadsheets.google.com/ccc?key=0Ak8c_1IVge120199weAHSjDHf1XTFZKZkVnT1dUdlE"/> And where is version info here like this: "GData-Version: 3.0" ? Thanks.
