Restore Message

Restores the files associated with a message. Pass an assistant message, or pass a user message to restore the files from its assistant reply. The associated files must not already be the latest files in the chat.

POST/v2/chats/{chatId}/restore-message

Usage

TypeScript Example

import { v0 } from 'v0-sdk'const result = await v0.chats.restoreMessage({  chatId: 'chat_abc123',  messageId: 'msg_xyz789',})console.log(result)

API Signature

Request

Path Parameters

chatId: string

The unique identifier of the chat.

Request Body

messageId: string

The unique identifier of the message whose files to restore.

Response

messages: object[]

The user and assistant messages created by the restore, in chronological order.

id: string

Unique message identifier.

chatId: string

ID of the chat this message belongs to.

role: 'user' | 'assistant'

Who produced this message.

createdAt: string

ISO timestamp when the message was created.

updatedAt: string

ISO timestamp when the message was last updated.

content: string

The trailing prose of the message — the agent’s closing summary, or the user’s message text. Empty string when there is no closing prose.

Ordered list of parts that make up the message. Iterate to render the full narrative including thinking, file operations, tool calls, and prose.

type: 'text'

A block of text output by the agent.

text: string

Markdown prose written by the agent or user.

startedAt?: string

ISO timestamp when this part began.

finishedAt?: string

ISO timestamp when this part completed.

Why generation ended. Null while the agent is still generating; once non-null, the message is final and safe to consume.

attachments?: object[]

Files attached to this message.

url: string

URL to the attachment.

name?: string

Original filename, when available.

contentType?: string

MIME type.

size?: integer

Size in bytes.

authorId: string | null

ID of the user who authored a user message; null for assistant messages.

usage: object

Token usage and credit cost. All values are zero on user messages and on assistant messages that have not yet generated tokens.

tokens: object

Token counts for this message.

input: number

Prompt input value (non-cached).

output: number

Completion output value.

cacheRead: number

Cache-read input value.

cacheWrite: number

Cache-write input value.

total: number

Sum of input, output, cacheRead, and cacheWrite.

creditsCost: object

Credit cost for this message.