6a6c04d34b
- Update all submodule URLs from gitea.centraal.wbd-rd.nl to gitea.wbd-rd.nl - Add settler as proper submodule in .gitmodules - Add agent skills, function anchors, decisions, and improvements - Add Docker configuration and scripts - Add manuals and third_party docs - Update .gitignore with secrets and build artifacts - Remove stale .tgz build artifact Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
32 lines
1.1 KiB
Markdown
32 lines
1.1 KiB
Markdown
# Node-RED Runtime Node JS Manual (EVOLV Summary)
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Based on: https://nodered.org/docs/creating-nodes/node-js
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## Input Handler Contract
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- Node-RED calls runtime handlers as `function(msg, send, done)`.
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- For compatibility, custom nodes should support fallback behavior when `send` is not provided.
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- Use `done()` on successful completion and `done(err)` on failure.
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## Output Routing Rules
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- For single-output nodes: `send(msg)` sends on output 1.
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- For multi-output nodes: pass an array with one slot per output, for example:
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- `[msg, null, null]` => output 1 only
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- `[null, msg, null]` => output 2 only
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- Always construct the outbound message first, then send it.
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## EVOLV Runtime Pattern
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Recommended runtime input structure for `src/nodeClass.js`:
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1. Normalize `send` fallback.
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2. Wrap `switch(msg.topic)` in `try/catch`.
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3. Route response messages to explicit output index with array format.
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4. Call `done()`/`done(err)` consistently.
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## Common Failure Mode
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- Sending a bare object in a multi-output context can hide intended port routing.
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- In EVOLV nodes with 3 outputs (`process`, `dbase`, `parent`), use explicit arrays for deterministic wiring behavior.
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