7 replies

Problem with canvas tool in Docker

Hello, I'm trying to use the

canvas

canvas

tool to display simple UIs from my OpenClaw Gateway, which is running in Docker Desktop on macOS.

When I try to use

canvas(action="present", javaScript="...", target="host")

canvas(action="present", javaScript="...", target="host")

, it consistently returns:

{"status": "error", "tool": "canvas", "error": "node required"}

{"status": "error", "tool": "canvas", "error": "node required"}

I also ran

nodes(action="status")

nodes(action="status")

, and it returns:

{"nodes_response": {"output": "{\\n  \\"ts\\": 1769811544673,\\n  \\"nodes\\": []\\n}"}}

{"nodes_response": {"output": "{\\n  \\"ts\\": 1769811544673,\\n  \\"nodes\\": []\\n}"}}

...indicating no nodes are detected.

My goal is to be able to use

canvas

canvas

to generate simple, dynamic web UIs (like an email triage dashboard) that I can access from my browser (phone/laptop).

Question: What is the correct way to configure my Dockerized OpenClaw Gateway to have an available "node" that the

canvas

canvas

tool can target for UI display? Or, how can I identify the default host node ID to pass to

canvas

canvas

in this Docker environment?

FotC�

Friends of the Crustacean 🦞🤝•2w ago•

7 replies

Eddy

Problem with canvas tool in Docker

Hello, I'm trying to use the

canvas

canvas

tool to display simple UIs from my OpenClaw Gateway, which is running in Docker Desktop on macOS.

When I try to use

canvas(action="present", javaScript="...", target="host")

canvas(action="present", javaScript="...", target="host")

, it consistently returns:

{"status": "error", "tool": "canvas", "error": "node required"}

{"status": "error", "tool": "canvas", "error": "node required"}

I also ran

nodes(action="status")

nodes(action="status")

, and it returns:

{"nodes_response": {"output": "{\\n  \\"ts\\": 1769811544673,\\n  \\"nodes\\": []\\n}"}}

{"nodes_response": {"output": "{\\n  \\"ts\\": 1769811544673,\\n  \\"nodes\\": []\\n}"}}

...indicating no nodes are detected.

My goal is to be able to use

canvas

canvas

canvas

canvas

tool can target for UI display? Or, how can I identify the default host node ID to pass to

canvas

canvas

in this Docker environment?

Problem with canvas tool in Docker

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