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Variations of inReplyTo

The property is defined here. The goal of this support table is to show how applications react to inReplyTo containing a wide variation of allowed objects. As Fediverse applications generally only give one the option to reply to a single element, the lacking support should not be surprising.

Support table

X inReplyTo akkoma gotosocial hollo mastodon mitra pleroma sharkey
# 
“http://pasture-one-actor/assets/note1.jsonap”
 ✅ ❌ ✅ ✅ ✅ ✅ ✅
# 
“http://invalid.example/”
 ✅ ❌ ❌ ❌ ❌ ✅ ❌
# 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 ✅ ❌ ✅ ❌ ❌ ✅ ✅
# 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ ✅ ✅ ❌ ❌ ❌ ❌
# 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 ✅ ❌ ✅ ❌ ❌ ✅ ✅
# 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ ✅ ✅ ❌ ❌ ❌ ❌
# 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 ✅ ❌ ✅ ✅ ✅ ✅ ✅

Details

inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“B0TE1EgIdPALaLm1h2”
 
“B0TDwqmxWasKKEnVJI”
 
“http://invalid.example/”
 
null
 
null
 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 
“B0TE1EgIdPALaLm1h2”
 
“B0TDwqmxWasKKEnVJI”
 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 
“B0TE1EgIdPALaLm1h2”
 
“B0TDwqmxWasKKEnVJI”
 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“B0TE1EgIdPALaLm1h2”
 
“B0TDwqmxWasKKEnVJI”
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 ❌ 
“http://invalid.example/”
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 ❌ 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 
null
 
null
 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 ❌ 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 
null
 
null
 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 ❌
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“018cdee6-9e68-742f-b3f0-e0f4bf59e2ad”
 
“019aa68b-686a-74fd-b66d-cf29db1455ff”
 
“http://invalid.example/”
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 
“018cdee6-9e68-742f-b3f0-e0f4bf59e2ad”
 
“019aa68b-686a-74fd-b66d-cf29db1455ff”
 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 
null
 
null
 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 
“018cdee6-9e68-742f-b3f0-e0f4bf59e2ad”
 
“019aa68b-686a-74fd-b66d-cf29db1455ff”
 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 
null
 
null
 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“018cdee6-9e68-742f-b3f0-e0f4bf59e2ad”
 
“019aa68b-686a-74fd-b66d-cf29db1455ff”
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“111709172888574587”
 
“115587904635725355”
 
“http://invalid.example/”
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 ❌ 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 ❌ 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“111709172888574587”
 
“115587904635725355”
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“019aa6c3-810e-5482-e31c-a287b2d17be6”
 
“019aa6c2-1ffd-aa0d-ee0c-cce05fc8f170”
 
“http://invalid.example/”
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 ❌ 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 ❌ 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“019aa6c3-810e-5482-e31c-a287b2d17be6”
 
“019aa6c2-1ffd-aa0d-ee0c-cce05fc8f170”
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“B0TNyci3is8dJh5uHQ”
 
“B0TNkYxUs8MNd3bvHM”
 
“http://invalid.example/”
 
null
 
null
 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 
“B0TNyci3is8dJh5uHQ”
 
“B0TNkYxUs8MNd3bvHM”
 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 
“B0TNyci3is8dJh5uHQ”
 
“B0TNkYxUs8MNd3bvHM”
 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“B0TNyci3is8dJh5uHQ”
 
“B0TNkYxUs8MNd3bvHM”
inReplyTo in_reply_to_id in_reply_to_account_id Ex. 
“http://pasture-one-actor/assets/note1.jsonap”
 
“9o5nesfcjudd0021”
 
“afcj5n5wjudd0004”
 
“http://invalid.example/”
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”
]
 
“9o5nesfcjudd0021”
 
“afcj5n5wjudd0004”
 
{
  “type”: “Link”,
  “href”: “http://pasture-one-actor/assets/note1.jsonap”
}
 ❌ 
[
  “http://pasture-one-actor/assets/note1.jsonap”,
  “http://pasture-one-actor/assets/note2.jsonap”
]
 
“9o5nesfcjudd0021”
 
“afcj5n5wjudd0004”
 
{
  “type”: “Collection”,
  “items”: [
    “http://pasture-one-actor/actor”
  ]
}
 ❌ 
{
  “@context”: “https://www.w3.org/ns/activitystreams”,
  “type”: “Note”,
  “id”: “http://pasture-one-actor/assets/note1.jsonap”,
  “to”: [
    “as:Public”
  ],
  “attributedTo”: “http://pasture-one-actor/actor”,
  “content”: “One”,
  “published”: “2024-01-06T13:11:45Z”
}
 
“9o5nesfcjudd0021”
 
“afcj5n5wjudd0004”