Status of the Web API for Smartstore 5: The porting of the Web API is largely complete. It is available in a kind of early preview for self-compilation in source code. Developers and partners should now take a look at it and test drive it.
Some minor work on the Web API and the documentation is still in progress.
Then follows ... shortly ... a finalized Web API plugin that store owners can use. So please be patient.
The source code of the Web API plugin can be found here:
There you can also read a first documentation about changes (Breaking Changes) to the Web API of Smartstore Classic. HMAC authentication is no longer supported. To achieve maximum interoperability with generic clients, the Web API now uses Basic Authentication over HTTPS as recommended by the OData protocol version 4.0.
Greetings, Stefan