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Hello Community,
i unfortunatly found an error in the Odata Metadata endpoint of Dataverse. File Columns have the Odata Type EDM.Binary, but are in fact a GUID. This trips up Odata Clients that validate the metadata.
Metadata :
(this is in a custom table, im very new to the topic so i couldnt find a build in example)
if you get the columns from the XML metadata (like https://yourinstance.crm.dynamics.com/api/data/v9.0/$metadata) you are getting an Edm.Guid and if you query that column you still get a Guid value because that is what is stored inside Dataverse. The binary content is actually stored outside Dataverse and to retrieve the content exist specific platform messages (here a link with some information https://docs.microsoft.com/en-us/powerapps/developer/data-platform/file-attributes).
If your goal is to display the binary content as part of that row I believe is not possible (opposite to image fields where you can retrieve the base64 encoded value), if you explain your goal maybe there is a workaround or something else
Yeah thats the problem, since Odata Clients cant be generated out of the metadata without modification (changing the Edm.Binary to Edm.Guid). That means a normal generated Client (and even a vanilla DataServiceContext) will throw an exception since it checks the Metadata. My goal is to report that bug or inconsistency.. Is there a Bugtracker for this product? I kinda tought this would be it.
can you provide more details? like the software you are using to generate the classes, the language used, etc etc? I am sure which exact way you can submit this behavior issue but if you provide more details is better
Thanks
I can do that, also the Problem is already there with just the Odata Api through Postman for example. I use C# with the Odata Connected Service Visual Studio 2019 extension.
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