OneDrive API : 429 - throttledRequest errors using /createLink endpoint after creating just a few links

[dufourux]

Hello,

I'm using Make for a client to automate a process which performs the following actions, involving Onedrive Personal :

1. Detect and list changes on files on a Onedrive Personal account
2. Pick one .doc / .docx file recently updated/created on Onedrive, download it as PDF, compress it and then upload it to the same folder on Onedrive
3. Create one sharing link (type = "embed") with an API call : /v1.0/me/drive/items/{{id}}/createLink (this feature is not available on Onedrive Business : I tried to solve my problem ).
4. Create one sharing link (type = "view") with an API call : /v1.0/me/drive/items/{{id}}/createLink
5. Add these links to a Firebase database in order to display the PDF documents on my client's website

Here is the unfortunate issue I'm encountering for 2 years now (the same as the one described here : #1436)

I'm getting throttled after only 8-10 links created in 40 minutes. Moreover, there is absolutely nothing in the response header, like a retry-after value for example (screenshot below)

I've implemented a backoff waiting 120 minutes before retrying, but it's still getting throttled after 8-10 API calls (createLink).

The limit is incredibly low, and it looks that there is no way to increase it or the perform a proper backoff mechanism. There is only this problem with createLink API.

My questions are (by order of importance) :
1. What is the theoretical limit of createLink API calls for Onedrive Personal ? I haven't been able to find this information on any official documentation.
2. Is there a way to increase the limit of API calls (8 calls in 40 minutes before getting throttled : it's quite few...), or at least to receive the retry-after header in order to perform a proper backoff mechanism with Make ?
3. Why doesn't OneDrive for Business support the creation of "embed" sharing link, while this feature is supported by Onedrive Personal ?
4. If you can't answer any questions above : do you know a cloud storage that allows to create embed links and download links for PDF files with API calls ?

I'm really stuck after a large amount on time dedicated to this project, my workflow is fine but this 429 Too many requests error is ruining the project...