Hello OLingo persons,
I have gone through most of your tutorials on how to use OLingo.
First of all, much material and examples pertain to older versions
of OLingo, and are out-of-date. This is really a shame, and costs
the Java-developer a lot of extra time when I want to get
OLingo version 4.5.0 running.
Secondly, you introduce the *server-side OData *examples very early.
This is unwise, as most persons just want to interface with an
existing OData-endpoint, for example a Microsoft Dynamics system.
Move all *server-side stuff* to more advanced tutorials, later.
Your interfacing with an existing OData-service is not precisely
enough described.
Using MS Dynamics, a *bearer token authentication* is needed in order
for updates to be allowed. AND - a *http-patch* call is required
too. Where is this code, in your tutorial ? (it's not there...)
You can take a look at my OLingo tutorial via this link:
https://egmont-petersen.nl/mesmerize/java-html/connection-and-data-exchange-java-with-microsoft-dynamics/
Please do get your tutorials up-to-date. It is otherwise too extremely
difficult to connect
a Java-application with Microsoft.
It took us weeks to figure all out.
Cheers !
Michael Egmont-Petersen