After verifying that the OpenClaw gateway's chat.send WebSocket RPC
accepts an 'attachments' array (confirmed from openclaw/openclaw source
and documentation), implement end-to-end image/file attachment support
for instance chat:
Bridge (openclaw-client.ts):
- chatSendAndWait() now accepts optional `attachments[]` parameter
- Passes attachments to chat.send RPC only when non-empty
Bridge (index.ts):
- /task-async accepts `attachments[]` from request body
- Forwards to chatSendAndWait unchanged
Backend (agent.controller.ts):
- executeInstanceTask() accepts IT0 attachment format
{ base64Data, mediaType, fileName? }
- Converts to OpenClaw format { name, mimeType, media: "data:..." }
- Saves attachments to conversation history via contextService
- Forwards to bridge via bridgeAttachments spread
Flutter (agent_instance_chat_remote_datasource.dart):
- createTask() now includes attachments in POST body when present
Flutter (chat_page.dart):
- Reverted Fix 5 (disabled button) — attachment button fully enabled
in instance mode since the bridge now supports it
Attachment format (OpenClaw wire):
{ name: string, mimeType: string, media: "data:<mime>;base64,<data>" }
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| src | ||
| CHANNEL_DEV_GUIDE.md | ||
| Dockerfile | ||
| README.md | ||
| package-lock.json | ||
| package.json | ||
| start-dingtalk.sh | ||
| supervisord.conf | ||
| tsconfig.json | ||
README.md
IT0 OpenClaw Bridge
Custom Docker image that bundles the official OpenClaw agent with the IT0 Bridge process, enabling IT0's agent-service to manage and monitor OpenClaw instances.
Architecture
Container (single image, two processes via supervisord)
├── openclaw gateway (internal port 18789, NOT exposed)
└── it0-bridge (external port 3000, exposed to IT0)
├── GET /health — liveness probe
├── GET /status — detailed status
├── POST /task — submit task to OpenClaw
├── GET /sessions — list sessions
└── GET /metrics — usage metrics
Build & Push
docker build -t it0hub/openclaw-bridge:latest .
docker push it0hub/openclaw-bridge:latest
Environment Variables
| Variable | Required | Description |
|---|---|---|
OPENCLAW_GATEWAY_TOKEN |
Yes | Internal OpenClaw gateway auth token |
CLAUDE_API_KEY |
Yes | Anthropic API key (injected by IT0) |
IT0_INSTANCE_ID |
Yes | UUID from IT0's agent_instances table |
IT0_AGENT_SERVICE_URL |
Yes | IT0 agent-service URL for heartbeat |
Deploy (via iAgent SSH)
docker run -d \
--name openclaw-{instanceId} \
--restart unless-stopped \
-p {hostPort}:3000 \
-v /data/openclaw/{instanceId}:/home/node/.openclaw \
-e OPENCLAW_GATEWAY_TOKEN={token} \
-e CLAUDE_API_KEY={claudeApiKey} \
-e IT0_INSTANCE_ID={instanceId} \
-e IT0_AGENT_SERVICE_URL=https://it0api.szaiai.com \
it0hub/openclaw-bridge:latest