Add reactions to posts

slices/main/actions/posts/react.rb

@@ -0,0 +1,23 @@
+require "digest/sha1"
+
+module Main
+  module Actions
+    module Posts
+      class React < Action
+
+        include Deps["repos.reaction_repo", "repos.post_repo"]
+
+        def handle(req, res)
+          post = post_repo.fetch!(req.params[:slug])
+
+          reaction_repo.create(post_id: post.id, visitor_identifier: Digest::SHA1.hexdigest(req.ip))
+
+          reaction_count = reaction_repo.count(post_id: post.id)
+
+          res.body = "👍 #{reaction_count}"
+          res.status = 201
+        end
+      end
+    end
+  end
+end