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Chatter REST API / Connect API
The Chatter API became the Connect API in Summer '20 https://releasenotes.docs.salesforce.com/en-us/summer20/release-notes/rn_chatter_api.htm
Chatter Feed
Users
Groups
Followers
Data is structured for rendering on websites and mobile devices.
Returned information is localized to the user's time zone and language.
Changed values that are tracked in a feed are returned as value-pair representations.
Rate limiting for Chatter REST API is per user, per application, per hour. The rate limiting for SOAP API and REST API is by organization. When you exceed the rate limit, all Connect REST API resources return a 503 Service Unavailable error code.
If needed, extract an ID from the REST API and use it in requests to Chatter REST API.
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