Change retrunType for M365 report functions to Edm.Steam

[peombwa]

The converted OpenAPI document currently represents response type of most report functions as application/json instead of application/octet-stream. To solve this, we need to ensure that response types of functions bound to reportRoot are accurately represented in the converted OpenAPI. Without this, code generators won't be able to know how to properly handle responses.

Example

Currently

This CSDL with the wrong return type:

Gets converted to this in OpenAPI:

Expected

For reports to function as described in MS Graph docs, we need to ensure that they are described as shown below:

Related to microsoftgraph/msgraph-sdk-powershell#407

AB#9223

[darrelmiller]

@peombwa If the returnType was Edm.Stream, would that fix our issues?

[peombwa]

@darrelmiller, I totally missed this. Yes, having the returnType as Edm.Steam will fix this. We should also add $format query parameter to all M365 reports.

I'll transfer the issue to the metadata repo since this work will involve XSLT transform.

[weyCC81]

@peombwa Is there an update on this?

[joshtransient]

Any updates to this yet?

[silijon]

Also looking for an update on this. As far as we can tell, the entire Microsoft.Graph.Reports powershell sdk module is irretrievably broken until this is fixed.

[DanijelkMSFT]

@silijon agree it would be great to see this fixed until then you may use this workaround with Peter provided me.
As it allows you to still use Graph Powershell und simply move forward as soon as the issue is fixed

Invoke-MgGraphRequest -Uri "https://graph.microsoft.com/beta/reports/getM365AppUserDetail(period='D7')/content" -OutputFilePath test.csv

[irvinesunday]

Resolved with #213