Dumas JSON String to Object
- Input: json_string
- Output: parsed JSON
- Use it to turn raw JSON text into a structured object.
Dumas JSON Object to String
- Inputs: json_object, pretty, sort_keys
- Output: serialized STRING
- Use it to compact or pretty-print JSON for prompts, logs, or file output.
Dumas JSON Get Value
- Inputs: json_object, path
- Output: JSON
- Reads a nested value using dot paths like user.profile.name or items.0.id.
Dumas JSON Set Value
- Inputs: json_object, path, value_json
- Output: updated JSON
- Writes a parsed JSON value into a nested path without mutating the original object.
Dumas JSON Merge Objects
- Inputs: base_object, overlay_object
- Output: merged JSON
- Deep-merges dictionaries so overlay values replace or extend the base object.
Dumas JSON Keys
- Input: json_object
- Outputs: keys as JSON array, count as integer
- Lists the top-level keys of an object and reports how many there are.
Dumas JSON Array Length
- Input: json_array
- Output: INT
- Returns the length of a JSON array.
Dumas JSON Array Iterator
- Inputs: json_input, index, mode
- Outputs: item, current_index, total_items
- Returns the current array item and position, with mode set to fixed, incr, or decr.

All nodes live in the Dumas/JSON category.

Installation

Change into your ComfyUI custom nodes directory:
```
cd /path/to/ComfyUI/custom_nodes
```

Clone this repository:

git clone https://git.dumas.ddns.net/chris.dumas/DumasNodes.git

Usage

Use dot paths for nested access:

user.profile.name
items.0.id
settings.render.width

Dumas JSON Set Value expects value_json to be valid JSON, so strings should be quoted:

"Dumas"

{"enabled": true, "retries": 3}

Dumas JSON Array Iterator clamps to valid bounds:

fixed -> use index as-is
incr  -> use index + 1
decr  -> use index - 1

This repo is intended to grow into a broader set of Dumas-branded generic utility nodes, including JSON helpers and adjacent data-manipulation tools.

MIT.