JSON Parser Node Documentation

Overview

The JSON Parser node is a tool within the ComfyUI framework designed to handle JSON data. Its primary function is to load JSON files and extract specific values based on user-defined keys. This functionality is essential for workflows that require the manipulation or retrieval of data stored in JSON format.

Purpose

The JSON Parser node provides users with the ability to parse JSON files and extract specific values. It is a vital component for workflows that involve data processing, transformation, and management in JSON format. This node streamlines the process of exploring and utilizing JSON data in various applications.

Inputs

The JSON Parser node accepts the following inputs:

1. File Path: A string input that specifies the location of the JSON file. The default value is "data.json". This input is required for the node to locate and access the target JSON file.

2. Key: A string input that determines which specific value to extract from the JSON data. This input is optional; if not provided, the node will return the entire JSON content.

3. Is Enable: A boolean input controlling whether the node is active. The default is True. If set to False, the node will not process the input file or extract any values.

Outputs

The JSON Parser node produces the following outputs:

1. Show JSON File: A string output that contains the entire content of the JSON file, given that the node is enabled. If a specific key is not provided, this output will allow users to inspect the whole JSON structure.

2. Value by Key: A dynamic type output (string or structured data) that contains the value corresponding to the specified key within the JSON data. If the key is not found in the JSON structure, this output will be None.

Usage in ComfyUI Workflows

The JSON Parser node can be integrated into ComfyUI workflows that require JSON data processing. It allows users to seamlessly extract and utilize JSON data across various tasks, such as:

• Data Transformation: Convert and manipulate JSON data for further processing in the workflow.
• Data Validation: Verify the existence and content of specific keys in JSON files.
• Configuration Management: Parse configuration files stored in JSON format to dynamically adjust workflow parameters.

By providing a flexible and straightforward interface for JSON data retrieval, this node enhances the ability to automate and streamline tasks that involve structured data formats.

Special Features and Considerations

1. Error Handling: The JSON Parser node includes basic error handling to manage scenarios like missing files or invalid JSON formats, ensuring smooth operation without workflow interruptions.

2. Dynamic Output: The output value type varies depending on the key specified, accommodating both simple string values and more complex data structures.

3. Locale Configuration: The display name and language of the node can adapt based on system settings or explicit configurations set in the config.ini file, supporting both English and Chinese interfaces.

4. Integration with Other Nodes: The node can be used alongside other nodes to perform complex data extraction and processing workflows, making it a versatile component in the ComfyUI ecosystem.

This documentation aims to provide a clear understanding of how to effectively use the JSON Parser node within ComfyUI, highlighting its inputs, outputs, capabilities, and integration possibilities.