how to post import pbix file

I would publish pbix file to a workplace using Post Import API

I'm trying to get file from One Drive 

here's my request

https://api.powerbi.com/v1.0/myorg/groups/cd936ccf-03ae-4df4-xxxxx/imports?datasetDisplayName=dataAutotest

Then in params I followed the doc but it's not really clear, examples are using different structure than doc.

Here's what I added In request Body

{
   "connectionType":"connect",
   "pathUrl":"https://org.sharepoint.com/:u:/g/personal/subdir/pbixfilepath"
}

 I get 400 error ( without details ) 

I have tried multiple combinations by replacing pathUrl with filePath or connectionType "connect" to "import".

I don't know if  OneDrive is supported, if not I'll be so grateful if someone could help me to import a pbix file with another way ( azure storage ? ) But I don't really get how to set correctly the body.

Here's the requestid 

requestid: 56ab064c-0cdf-48a0-8f7f-71b2f94ee0e8