1. Documents
Syncode
  • Syncode
    • Conventions
    • Response Schemas
    • Error Taxonomy
    • Resource Model
    • Permission Model
    • Cross-Cutting Concerns
    • Security
    • Collab-Plane
    • Execution-Plane
    • AI-Plane
    • Schemas
      • RoomStatus
      • RoomRole
      • RoomMode
      • SupportedLanguage
      • Difficulty
      • UserRole
      • ErrorResponse
      • Pagination
      • UserProfile
      • PublicProfile
      • RoomConfig
      • RoomParticipantSummary
      • RoomSummary
      • RoomDetail
      • RoomPreview
      • ProblemSummary
      • ProblemDetail
      • ProblemExample
      • TestCase
      • TagInfo
      • AiMessage
      • WeaknessEntry
      • PeerFeedbackRatings
      • PeerFeedbackEntry
      • SessionSummary
      • SessionDetail
      • SessionParticipant
      • SessionEvent
      • CodeSnapshot
      • Evidence
      • ReportDimension
      • AdminDashboard
      • AdminUserEntry
      • AdminUserDetail
      • AdminRoomEntry
      • AuditLogEntry
      • HealthResponse
      • MatchOpponent
  • SynCode Control Plane API
    • Auth
      • Create a new account
      • Authenticate and get tokens
      • Refresh access token
      • Invalidate refresh token
      • Change current user's password
      • Request password reset email
      • Reset password with token
    • Users
      • Get current user profile
      • Update current user profile
      • Soft-delete account
      • Get public profile of another user
      • Upload avatar (presigned URL)
      • Get usage quotas and limits
      • Get current active room (for reconnection)
      • Get time-series training statistics
    • Rooms
      • Participants
        • List all participants in a room
        • Update participant (role, mute)
        • Kick a participant from the room
      • Control
        • Advance room phase
        • Select or change the problem
        • Update room settings
        • Lock code editor, run, and submit
        • Unlock code editor, run, and submit
        • Pause the coding timer
        • Resume the coding timer
      • Media
        • Generate LiveKit access token
        • Record participant's recording consent
        • Start session recording
        • Stop session recording
      • AI
        • Send a message to AI interviewer
        • Poll AI message result
        • Get AI conversation history
        • Request a targeted hint
        • Get hint result
        • Request code review
        • Get review result
        • Get cross-session weakness tracking
      • StaticAnalysis
        • Request static analysis
        • Get analysis result
      • Feedback
        • Submit peer evaluation
        • Get all feedback for this room
        • Get my submitted feedback
      • Create a new room
      • List rooms for current user
      • Get room details
      • Destroy a room (host only)
      • Join a room via room code
      • Leave a room
      • Lookup room by invite code
      • Execute code (interactive run)
      • Submit code against test cases
      • List past runs in this room
      • List past submissions in this room
      • Transfer room ownership
    • Problems
      • List and search problems
      • Create a problem (admin)
      • List all available tags
      • Get problem details
      • Update a problem (admin)
      • Delete a problem (admin)
    • Bookmarks
      • List bookmarked problems
      • Bookmark a problem
      • Remove bookmark
    • Execution
      • Get execution result (single run)
      • Get submission status and aggregated results
    • Sessions
      • List my session history
      • Get session details
      • Soft-delete a session
      • Get training report
      • Get session event timeline
      • Get code snapshots
      • Get recording download URL
      • Get peer feedback for this session
      • Get whiteboard export
      • Get AI conversation history
      • Compare multiple session reports
    • Matchmaking
      • Enter the matchmaking queue
      • Cancel matchmaking
      • Get current match status
      • Accept a proposed match
      • Decline a proposed match
    • Admin
      • System overview stats
      • List all users
      • Get user details (admin view)
      • Update user (ban, role change)
      • List all rooms
      • Force-close a room
      • Query audit logs
    • Health
      • Deep health check
    • Schemas
      • RoomStatus
      • CreateDocumentRequest
      • RoomRole
      • CreateDocumentResponse
      • RoomMode
      • DestroyDocumentResponse
      • SupportedLanguage
      • KickUserRequest
      • Difficulty
      • KickUserResponse
      • UserRole
      • LockEditorRequest
      • ErrorResponse
      • LockEditorResponse
      • Pagination
      • SnapshotReadyPayload
      • UserProfile
      • UserDisconnectedPayload
      • PublicProfile
      • CallbackAckResponse
      • RoomConfig
      • RoomParticipantSummary
      • RoomSummary
      • RoomDetail
      • RoomPreview
      • ProblemSummary
      • ProblemDetail
      • ProblemExample
      • TestCase
      • TagInfo
      • AiMessage
      • WeaknessEntry
      • PeerFeedbackRatings
      • PeerFeedbackEntry
      • SessionSummary
      • SessionDetail
      • SessionParticipant
      • SessionEvent
      • CodeSnapshot
      • Evidence
      • ReportDimension
      • AdminDashboard
      • AdminUserEntry
      • AdminUserDetail
      • AdminRoomEntry
      • AuditLogEntry
      • HealthResponse
      • MatchOpponent
  • SynCode Collab Plane API
    • Documents
      • Create a Yjs document
        POST
      • Destroy a Yjs document
        DELETE
      • Kick a user from the document
        POST
      • Toggle editor lock
        POST
      • Update room state
        POST
    • Health
      • Health check
    • Callbacks
      • [Callback] Snapshot ready
      • [Callback] User disconnected
    • Schemas
      • CreateDocumentRequest
      • CreateDocumentResponse
      • DestroyDocumentResponse
      • KickUserRequest
      • KickUserResponse
      • SnapshotReadyPayload
      • LockEditorRequest
      • UpdateRoomStateRequest
      • UserDisconnectedPayload
      • LockEditorResponse
      • UpdateRoomStateResponse
      • CallbackAckResponse
      • ErrorResponse
  1. Documents

Create a Yjs document

Designing
Staging
Staging
POST
/internal/documents
Documents
Initializes a new Yjs document for a room. Called by the control-plane when a room
is created, so the collab-plane can track the authoritative room phase and editor
lock state from the beginning of the room lifecycle.
If initialContent is provided, the document is seeded with that code.

Request

Authorization
API Key
Add parameter in header
X-Internal-Secret
Example:
X-Internal-Secret: ********************
or
Body Params application/jsonRequired

Examples

Responses

🟢201Created
application/json
Document created
Bodyapplication/json

🟠400Bad Request
🟠409Conflict
Request Request Example
Shell
JavaScript
Java
Swift
curl --location '/internal/documents' \
--header 'X-Internal-Secret: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
    "roomId": "550e8400-e29b-41d4-a716-446655440000",
    "initialContent": "def solution(nums):\\n    pass",
    "initialPhase": "waiting",
    "editorLocked": false
}'
Response Response Example
201 - Example 1
{
    "roomId": "550e8400-e29b-41d4-a716-446655440000",
    "createdAt": 1709467200000
}
Modified at 2026-04-09 21:45:02
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MatchOpponent
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Destroy a Yjs document
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