SDKsWASMEnterprise

Load message history in reverse

Retrieve history from a message anchor toward newer messages.

Use the reverse history API when you already have a message anchor and need to fill in messages that come after it.

Parameters

Parameter	Type	Required	Description
`conversationID`	`string`	Yes	ID of the conversation whose messages to retrieve.
`startClientMsgID`	`string`	Yes	Anchor message ID from which to read toward newer messages.
`count`	`number`	Yes	Maximum number of messages to retrieve.
`viewType`	`MessageViewType`	Yes	Message viewing direction. Use `MessageViewType.History` when loading history.

import { MessageViewType } from '@openim/wasm-client-sdk';

const { data: page } =
  await openimsdk.getAdvancedHistoryMessageListReverse({
    conversationID,
    startClientMsgID: anchorMessage.clientMsgID,
    count: 30,
    viewType: MessageViewType.History,
  });

When the Promise resolves, data is an AdvancedMessageListResult. For complete field specifications, see Load message history. Here, isEnd indicates whether pagination has reached the newest available message boundary.

Do not mix both loading directions at the same scroll boundary. When adding queried messages to the list, deduplicate them by conversationID:clientMsgID.

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