Getting 400 error on HTTP call to Sharepoint online

[MariaL]

Hi all,

I am trying to call Sharepoint REST API with MS Flow but I am getting always the same error "HTTP Error 400. The request hostname is invalid."

See the capture below:

It doesn't matter to wich endpoint I try to access or how many times I register my app (in Sharepoint and in my Azure tenant) I always get the same error. I have followed many blog posts like this : http://www.sharepointpals.com/post/Step-by-Step-Procedure-to-Call-SharePoint-Office-365-REST-API-fro... or answers in this same forum like this one: https://powerusers.microsoft.com/t5/Connecting-To-Data/How-to-get-Access-token-via-HTTP-action-in-Fl...

The token is well retrieved and passed to the url, is not a permissions issue because then I will get a different error (and because this same app credentials I used before to access to Sharepoint through CSOM methods and Powershell).

And of course the url is working perfectly as simple as it is.

This is how I parse the token and token type and I buid the http call:

 I would appreciate so much any thinking that you could have!

Thanks you