ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-05-21T08:16:33Z", "url": "https://fosstodon.org/@derekkraan/112478086306467138", "attributedTo": "https://fosstodon.org/users/derekkraan", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://fosstodon.org/users/derekkraan/followers" ], "sensitive": false, "atomUri": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138", "inReplyToAtomUri": null, "conversation": "tag:fosstodon.org,2024-05-21:objectId=210523424:objectType=Conversation", "content": "<p>💥PG advisory locks considered dangerous. The following query can crash your DB.💥</p><p>HighlanderPG uses these locks to ensure that your process (data syncer, email sender, cron job runner, etc) is running on just one of your nodes.</p><p>Last week a customer called to say that their DB was getting crushed under the load when running HighlanderPG. The # of dead rows was getting very high, indicating some issue with VACUUM.</p><p>I quickly realized that something was causing a long-running transaction.</p><p>1/🧵</p>", "contentMap": { "en": "<p>💥PG advisory locks considered dangerous. The following query can crash your DB.💥</p><p>HighlanderPG uses these locks to ensure that your process (data syncer, email sender, cron job runner, etc) is running on just one of your nodes.</p><p>Last week a customer called to say that their DB was getting crushed under the load when running HighlanderPG. The # of dead rows was getting very high, indicating some issue with VACUUM.</p><p>I quickly realized that something was causing a long-running transaction.</p><p>1/🧵</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://cdn.fosstodon.org/media_attachments/files/112/478/083/868/663/434/original/e9cb9d13654b8750.png", "name": null, "blurhash": "Uo7z4bj[p0a#azjtj[fQpMazaIj@kCazayj@", "width": 794, "height": 390 } ], "tag": [], "replies": { "id": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138/replies?min_id=112478088689962575&page=true", "partOf": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138/replies", "items": [ "https://fosstodon.org/users/derekkraan/statuses/112478088689962575" ] } }, "likes": { "id": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://fosstodon.org/users/derekkraan/statuses/112478086306467138/shares", "type": "Collection", "totalItems": 3 } }