Messages have url property redirects to ActivityPub data¶

given: "Alice" created an actor on "abel" called "Alice" with username "Alice"¶

send.Alice.request.create_actor

{
  "base_url": "http://abel",
  "preferred_username": "Alice",
  "profile": {},
  "automatically_accept_followers": null,
  "name": null
}

receive.Alice.response.create_actor

{
  "attachment": null,
  "published": "2026-03-20T15:17:34.198595",
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://w3id.org/security/v1",
    {
      "manuallyApprovesFollowers": "as:manuallyApprovesFollowers"
    }
  ],
  "publicKey": {
    "id": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA#legacy-key-1",
    "owner": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1zenwPY4AJ5gpFvlYM27\nKpKMkYfCrr67Heg1gyje8RaJ5rbWGv/b0HTfA66hO8x9WUXzkzibANRutpAyGHK1\nTvRKGOw1W74PuTwFhG/iLz/tT+/sGZn5XWymj/H/OyimcsUsELzJhVlaIxqpIIqP\nV9beHxMRH8VxBexeJW7IPK1/AB0b1CZxcMxaHbHNhg3RRXw3Gw3PQT/Bp9YZFTqQ\nzQ1pDsI+YJIEwbxqtsY5gRUiGd9jnWRsMcYaC58jnvJ0gn7MFk3dhwaTMnB4S0Aw\nS9i7NatPqvfCCofLRq7OtHWm0SAFuuM58SRBRXOUgNMWFyYGr8MOfMpOiHKY8Q3p\nYwIDAQAB\n-----END PUBLIC KEY-----\n"
  },
  "id": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "type": "Person",
  "inbox": "http://abel/inbox/RJge_adq5fyWK7KhqyjM-A",
  "outbox": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/outbox",
  "followers": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers",
  "following": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/following",
  "preferredUsername": "Alice",
  "name": "Alice",
  "identifiers": [
    "acct:Alice@abel",
    "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
  ],
  "endpoints": {
    "sharedInbox": "http://abel/shared_inbox"
  },
  "manuallyApprovesFollowers": true
}

given: "Bob" created an actor on "abel" called "Bob" with username "Bob"¶

send.Bob.request.create_actor

{
  "base_url": "http://abel",
  "preferred_username": "Bob",
  "profile": {},
  "automatically_accept_followers": null,
  "name": null
}

receive.Bob.response.create_actor

{
  "attachment": null,
  "published": "2026-03-20T15:17:34.956854",
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://w3id.org/security/v1",
    {
      "manuallyApprovesFollowers": "as:manuallyApprovesFollowers"
    }
  ],
  "publicKey": {
    "id": "http://abel/actor/OO873zX59uDYP6eZkgOiPg#legacy-key-1",
    "owner": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnsHnGJjQkZ+ePFxwGrOF\nBbI4PNcRzQ9S6xrEhwwZ9cifZNhiiu9Iud96dYg1QMKVVBo8BD6r2vAQ3rFDbfEi\ngFX4mc+Bf6spbTirBDZjOHLs88WgcOuojv9bt9gb5Y4+skcqP9vkNL6R1d9/3EKR\nv1hT1n6jt0/qrhhHFjZsInM1CVObqbfVejJF3X37epc7mE55YYV/F2puqQ2h6vw9\nuisb4lZw8yQQSGhrgGWiT3OiP794Kilahxaudn8uEfT5zVAw5RyR+ru4qq+tRUwl\nTi1cihkq1rwjodgZCt0QYGBllw/k4da52syydRsjMrpRCs7xxqnFZPRFDFo6NXYt\n1QIDAQAB\n-----END PUBLIC KEY-----\n"
  },
  "id": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
  "type": "Person",
  "inbox": "http://abel/inbox/DXgQw9OS7IvCU-9ts4gFCg",
  "outbox": "http://abel/actor/OO873zX59uDYP6eZkgOiPg/outbox",
  "followers": "http://abel/actor/OO873zX59uDYP6eZkgOiPg/followers",
  "following": "http://abel/actor/OO873zX59uDYP6eZkgOiPg/following",
  "preferredUsername": "Bob",
  "name": "Bob",
  "identifiers": [
    "acct:Bob@abel",
    "http://abel/actor/OO873zX59uDYP6eZkgOiPg"
  ],
  "endpoints": {
    "sharedInbox": "http://abel/shared_inbox"
  },
  "manuallyApprovesFollowers": true
}

when: "Bob" sends "Alice" a Follow Activity¶

send.Bob.trigger.send_message

{
  "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
  "data": {
    "@context": "https://www.w3.org/ns/activitystreams",
    "type": "Follow",
    "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
    "to": [
      "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
    ],
    "id": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
    "published": "2026-03-20T15:17:35Z",
    "object": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
  }
}

receive.Bob.outgoing.Follow

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Follow",
      "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
      "to": [
        "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
      ],
      "id": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
      "published": "2026-03-20T15:17:35Z",
      "object": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
    }
  },
  "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
  "event_type": "outgoing",
  "history_id": null
}

receive.Alice.incoming.Follow

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Follow",
      "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
      "to": [
        "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
      ],
      "id": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
      "published": "2026-03-20T15:17:35Z",
      "object": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA"
    }
  },
  "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "event_type": "incoming",
  "history_id": null
}

when: "Alice" sends an Accept to this Follow Activity¶

send.Alice.trigger.send_message

{
  "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "data": {
    "@context": "https://www.w3.org/ns/activitystreams",
    "type": "Accept",
    "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
    "to": [
      "http://abel/actor/OO873zX59uDYP6eZkgOiPg"
    ],
    "published": "2026-03-20T15:17:35Z",
    "object": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
    "id": "accept:e52f4da0-b6ce-4902-8a86-0bebb9424192"
  }
}

receive.Alice.outgoing.Accept

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Accept",
      "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
      "to": [
        "http://abel/actor/OO873zX59uDYP6eZkgOiPg"
      ],
      "published": "2026-03-20T15:17:35Z",
      "object": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
      "id": "accept:e52f4da0-b6ce-4902-8a86-0bebb9424192"
    }
  },
  "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "event_type": "outgoing",
  "history_id": null
}

receive.Bob.incoming.Accept

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Accept",
      "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
      "to": [
        "http://abel/actor/OO873zX59uDYP6eZkgOiPg"
      ],
      "published": "2026-03-20T15:17:35Z",
      "object": "follow:0e083f47-1789-4a8f-9b24-1d1972ed300a",
      "id": "accept:e52f4da0-b6ce-4902-8a86-0bebb9424192"
    }
  },
  "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
  "event_type": "incoming",
  "history_id": null
}

when: "Alice" publishes a message "Who stole my milk?" to her followers¶

send.Alice.trigger.publish_object

{
  "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "data": {
    "@context": "https://www.w3.org/ns/activitystreams",
    "type": "Note",
    "attributedTo": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public"
    ],
    "cc": [
      "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers"
    ],
    "published": "2026-03-20T15:17:36Z",
    "content": "Who stole my milk?"
  }
}

receive.Alice.outgoing.Create

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Create",
      "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
      "to": [
        "https://www.w3.org/ns/activitystreams#Public"
      ],
      "cc": [
        "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers"
      ],
      "published": "2026-03-20T15:17:36Z",
      "object": {
        "@context": "https://www.w3.org/ns/activitystreams",
        "type": "Note",
        "attributedTo": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
        "to": [
          "https://www.w3.org/ns/activitystreams#Public"
        ],
        "cc": [
          "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers"
        ],
        "published": "2026-03-20T15:17:36Z",
        "content": "Who stole my milk?",
        "id": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a",
        "replies": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/replies",
        "shares": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/shares",
        "likes": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/likes",
        "url": [
          {
            "type": "Link",
            "mediaType": "text/html",
            "href": "http://abel/@xQZGVAnUzaoM/o/019d0bd2-c713-7d27-958a-fe4c8bead45a"
          }
        ]
      },
      "id": "http://abel/simple_storage/019d0bd2-c719-76f5-b612-f5f56344ca1f"
    }
  },
  "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
  "event_type": "outgoing",
  "history_id": null
}

receive.Bob.incoming.Create

{
  "data": {
    "raw": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Create",
      "actor": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
      "to": [
        "https://www.w3.org/ns/activitystreams#Public"
      ],
      "cc": [
        "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers"
      ],
      "published": "2026-03-20T15:17:36Z",
      "object": {
        "@context": "https://www.w3.org/ns/activitystreams",
        "type": "Note",
        "attributedTo": "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA",
        "to": [
          "https://www.w3.org/ns/activitystreams#Public"
        ],
        "cc": [
          "http://abel/actor/UbslQ4sAVUs9AHnqCasGKA/followers"
        ],
        "published": "2026-03-20T15:17:36Z",
        "content": "Who stole my milk?",
        "id": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a",
        "replies": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/replies",
        "shares": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/shares",
        "likes": "http://abel/html_display/object/019d0bd2-c713-7d27-958a-fe4c8bead45a/likes",
        "url": [
          {
            "type": "Link",
            "mediaType": "text/html",
            "href": "http://abel/@xQZGVAnUzaoM/o/019d0bd2-c713-7d27-958a-fe4c8bead45a"
          }
        ]
      },
      "id": "http://abel/simple_storage/019d0bd2-c719-76f5-b612-f5f56344ca1f"
    }
  },
  "actor": "http://abel/actor/OO873zX59uDYP6eZkgOiPg",
  "event_type": "incoming",
  "history_id": null
}

Messages have url property redirects to ActivityPub data¶

given: "Alice" created an actor on "abel" called "Alice" with username "Alice"¶

given: "Bob" created an actor on "abel" called "Bob" with username "Bob"¶

when: "Bob" sends "Alice" a Follow Activity¶

when: "Alice" sends an Accept to this Follow Activity¶

when: "Alice" publishes a message "Who stole my milk?" to her followers¶

then: "Bob" receives a message saying "Who stole my milk?"¶

then: The received message contains an URL of mediatype "text/html"¶

then: A request to the object using accept "application/activity+json" gets redirected¶