SHiNE-server/Dev_Docs/API/06_Channels_Read_API.md

06. Channels Read API

Человеко-читаемое объяснение

Эти функции — это чтение данных каналов для UI:

1. ListSubscriptionsFeed — отдает данные для экрана списка каналов:

   • ваши каналы (личный + созданные вами),
   • каналы пользователей, на кого вы подписаны,
   • отдельные каналы, на которые вы подписаны напрямую.

2. GetChannelMessages — отдает полную ленту одного канала (пока без курсоров, загружается сразу целиком), включая версии сообщений, лайки и ответы.

3. GetMessageThread — отдает дерево обсуждения вокруг конкретного сообщения: предки, фокус-сообщение, потомки.

4. GetChannelsCounters — отдает счетчики разделов каналов для пользователя.

5. ListGroupChats200 — отдает список групповых чатов типа 200.

6. GetGroupDialog — отдает сообщения конкретного группового чата типа 200.

На первом этапе мы не используем курсоры (nextCursor) и загружаем полные списки.

---

1) ListSubscriptionsFeed

Request

{
  "op": "ListSubscriptionsFeed",
  "requestId": "req-1",
  "payload": {
    "login": "Alice",
    "limit": 200
  }
}

Response (success)

{
  "op": "ListSubscriptionsFeed",
  "requestId": "req-1",
  "status": 200,
  "ok": true,
  "payload": {
    "login": "Alice",
    "ownedChannels": [
      {
        "channel": {
          "ownerLogin": "Alice",
          "ownerBlockchainName": "alice-001",
          "channelName": "0",
          "personal": true,
          "channelRoot": { "blockNumber": 0, "blockHash": "..." }
        },
        "messagesCount": 120,
        "lastMessage": {
          "messageRef": { "blockNumber": 921, "blockHash": "..." },
          "text": "последняя версия текста",
          "createdAtMs": 1760000000000,
          "authorLogin": "Alice",
          "authorBlockchainName": "alice-001"
        }
      }
    ],
    "followedUsersChannels": [
      {
        "channel": {
          "ownerLogin": "Bob",
          "ownerBlockchainName": "bob-001",
          "channelName": "0",
          "personal": true,
          "channelRoot": { "blockNumber": 0, "blockHash": "..." }
        },
        "messagesCount": 540,
        "lastMessage": {
          "messageRef": { "blockNumber": 922, "blockHash": "..." },
          "text": "последняя версия текста",
          "createdAtMs": 1760000100000,
          "authorLogin": "Bob",
          "authorBlockchainName": "bob-001"
        }
      }
    ],
    "followedChannels": [
      {
        "channel": {
          "ownerLogin": "Carl",
          "ownerBlockchainName": "carl-001",
          "channelName": "market",
          "personal": false,
          "channelRoot": { "blockNumber": 456, "blockHash": "..." }
        },
        "messagesCount": 90,
        "lastMessage": {
          "messageRef": { "blockNumber": 1002, "blockHash": "..." },
          "text": "актуальный текст",
          "createdAtMs": 1760001000000,
          "authorLogin": "Carl",
          "authorBlockchainName": "carl-001"
        }
      }
    ]
  }
}

---

2) GetChannelMessages

Request

{
  "op": "GetChannelMessages",
  "requestId": "req-2",
  "payload": {
    "channel": {
      "ownerBlockchainName": "bob-001",
      "channelRootBlockNumber": 123,
      "channelRootBlockHash": "..."
    },
    "limit": 200,
    "sort": "asc"
  }
}

Response (success)

{
  "op": "GetChannelMessages",
  "requestId": "req-2",
  "status": 200,
  "ok": true,
  "payload": {
    "channel": {
      "ownerLogin": "Bob",
      "ownerBlockchainName": "bob-001",
      "channelName": "news",
      "channelRoot": { "blockNumber": 123, "blockHash": "..." }
    },
    "messages": [
      {
        "messageRef": { "blockNumber": 140, "blockHash": "..." },
        "authorLogin": "Bob",
        "authorBlockchainName": "bob-001",
        "createdAtMs": 1760000000000,
        "text": "текущая версия",
        "likesCount": 12,
        "repliesCount": 3,
        "versionsTotal": 4,
        "versions": [
          { "versionIndex": 1, "blockNumber": 140, "blockHash": "...", "text": "v1", "createdAtMs": 1760000000000 },
          { "versionIndex": 2, "blockNumber": 155, "blockHash": "...", "text": "v2", "createdAtMs": 1760001000000 },
          { "versionIndex": 3, "blockNumber": 170, "blockHash": "...", "text": "v3", "createdAtMs": 1760002000000 },
          { "versionIndex": 4, "blockNumber": 199, "blockHash": "...", "text": "v4", "createdAtMs": 1760003000000 }
        ]
      }
    ]
  }
}

---

3) GetMessageThread

Request

{
  "op": "GetMessageThread",
  "requestId": "req-3",
  "payload": {
    "message": {
      "blockchainName": "bob-001",
      "blockNumber": 333,
      "blockHash": "..."
    },
    "depthUp": 20,
    "depthDown": 2,
    "limitChildrenPerNode": 50
  }
}

Response (success)

{
  "op": "GetMessageThread",
  "requestId": "req-3",
  "status": 200,
  "ok": true,
  "payload": {
    "ancestors": [MessageNode],
    "focus": MessageNode,
    "descendants": [MessageNodeTree]
  }
}

---

4) GetChannelsCounters

Request

{
  "op": "GetChannelsCounters",
  "requestId": "req-4",
  "payload": {
    "login": "Alice"
  }
}

Response (success)

{
  "op": "GetChannelsCounters",
  "requestId": "req-4",
  "status": 200,
  "ok": true,
  "payload": {
    "login": "Alice",
    "feedCount": 12,
    "dialogs100Count": 3,
    "groupChats200Count": 4,
    "myChannelsCount": 2
  }
}

---

5) ListGroupChats200

Request

{
  "op": "ListGroupChats200",
  "requestId": "req-5",
  "payload": {
    "login": "Alice"
  }
}

Response (success)

{
  "op": "ListGroupChats200",
  "requestId": "req-5",
  "status": 200,
  "ok": true,
  "payload": {
    "login": "Alice",
    "chats": [
      {
        "ownerLogin": "Alice",
        "ownerBlockchainName": "alice-001",
        "channelRootBlockNumber": 123,
        "channelRootBlockHash": "...",
        "channelName": "team",
        "chatTitle": "Team chat",
        "membersCount": 3,
        "updatedAtMs": 1760000000000
      }
    ]
  }
}

---

6) GetGroupDialog

Request

{
  "op": "GetGroupDialog",
  "requestId": "req-6",
  "payload": {
    "login": "Alice",
    "group": {
      "ownerBlockchainName": "alice-001",
      "channelRootBlockNumber": 123
    }
  }
}

Response (success)

{
  "op": "GetGroupDialog",
  "requestId": "req-6",
  "status": 200,
  "ok": true,
  "payload": {
    "group": {
      "ownerLogin": "Alice",
      "ownerBlockchainName": "alice-001",
      "channelRootBlockNumber": 123,
      "channelName": "team",
      "chatTitle": "Team chat"
    },
    "messages": [
      {
        "authorLogin": "Bob",
        "authorBlockchainName": "bob-001",
        "blockNumber": 140,
        "blockHash": "...",
        "createdAtMs": 1760000000000,
        "text": "Привет"
      }
    ]
  }
}

---

Reason codes

• bad_fields
• user_not_found
• channel_not_found
• message_not_found
• limit_too_large
• channel_name_already_exists
• internal_error