The Like activity indicates the actor likes the object.
The side effect of receiving this in an outbox is that the server SHOULD add the object to the actor’s liked Collection.
There doesn’t appear to be any other client to server interactions for different types of likes. Afaik, Lemmy extended the ActivityPub protocol to add the downvote.
Well ActivityPub isn’t 1:1 interoperable all the time
It will be interoperable up to the base spec (assuming, of course, that both services adhere to the base spec).
Like you’re not going to see the upvotes/downvotes of a Lemmy post when viewing from Mastodon.
If both Mastodon, and Lemmy adhere to the spec, then they can interoperate. If Lemmy’s upvotes are federated as ActivityPub like activities, and Mastodon intereperets like activities as favorites, then there should be no issue. Downvotes will certainly not federate as Mastodon doesn’t use them, and they don’t exist in the base spec.
What does interoperate is the post and comment content which is the important part
Today I decided to check on my small Bionicle parts for the first time after moving since I'm considering getting more. Ended up putting together a creachure and curing my depression.
Yes, I know about hashtags. I use them. albeit sparingly, as I think is appropriate, without making my posts #look#like#Ransom#notes. For example, I tag my photos with "#photography". What I won't do is label my "boring" posts, because I like to think that every one of them has the potential to be boring to someone.
Odd addendum to the ear-piercing experience: is it standard practice to give out free lollipops? Highly approve.
It did mean I had this stuck in my head on the way home though. You can have it now. #Earworm#Lollipop
Should Mastodon votes be federated into Lemmy?
I am concerned that Mastodon’s unary-vote system (favorites), and Lemmy’s binary-vote system (upvotes with downvotes) are mutually exclusive....