Is it possible to fetch my company updates feed without login

Question

I'm trying to find a way to retrieve my company updates feed. The question is, is it possible without user login/ interaction?

When searching the docs I found https://docs.microsoft.com/en-us/linkedin/marketing/integrations/community-management/shares/share-api to retrieve this information. But if I'm correct, you can't do this without first logging in (r_organization_social requires 3-legged).

Is there another endpoint that could do this with only a key/secret? Or is the only way for this to work, login and make a cronjob that automatically refreshes the token. With the downside that I need to login again if the cronjob fails.

Some other relevant info, when trying to generate an application token I get the following error "This application is not allowed to create application tokens". But I think this is normal because a 2-legged OAuth is not available for Marketing APIs.

to summarize:

• I want company updates feed without user interaction
• Maybe using the wrong endpoint
• Maybe something wrong with the app creation
• Maybe something wrong with generating Application key

Credential docs used: https://docs.microsoft.com/en-us/linkedin/shared/authentication/client-credentials-flow