Building a MS Flow

[PeggyLang]

I would like to build a flow that will update an image on the homepage of my Sharepoint site when I upload a new image to the document library. 
Each Monday I upload a new document to a document library. Then I go to the homepage of my Sharepoint site and edit the web part to link to the recently uploaded image file so that the new image displays. 
I believe my ‘trigger’ is when a File is created or updated. I am unclear what my ‘action’(s) is. 

[dvstrien · Accepted solution]

Hi @PeggyLang 

Instead of updating the link on your webpart I would have the webpart link to a file in a different document library with a generic name that won't change name e.g. homepageimage.jpg 

The flow would be triggered on upload of a new file in the document library (when a file is created)

then get the file content of the image

next delete the existing homepageimage.jpg file

next create a file in the location and with name of your homepageimage file 

Hope this helps, please mark as a solution if it does.

[PeggyLang]

Hi @dvstrien 

Thank you!  I had not thought of that.  I will definitely work on that today.  Thanks so much for responding and making me think outside the box.  I'll come back here and let you know if I was able to successfully build this.

[PeggyLang]

@dvstrien The flow runs successfully, however, the image does not change on my home page.

I'm not sure why?

[PeggyLang]

@dvstrien I believe I have an idea.  It would seem that Sharepoint is returning the 'cached' file which is why the image is not updating on the SP site.
SO . . . is there a way to force SP to not use 'cached' files?  
OR
is there a way to add a dynamic element to the file name?  i.e., a # that is actually a counter function?