ComfyUI Node: JSON → Prompt Builder

JSON → Prompt Builder:

The JSONPromptBuilder is a specialized node designed to transform JSON-formatted text into a coherent prompt string. This node is particularly useful for AI artists who want to leverage structured data to generate creative prompts for their projects. By parsing JSON input, the node extracts and flattens values, converting them into a single, comma-separated string. This process allows for the seamless integration of complex data structures into a format that can be easily used in various AI-driven applications. The primary goal of the JSONPromptBuilder is to simplify the conversion of JSON data into a prompt format, making it accessible and usable for creative tasks without requiring extensive technical knowledge.

JSON → Prompt Builder Input Parameters:

json_text

The json_text parameter is a string input that accepts JSON-formatted text. This parameter is crucial as it serves as the source of data that will be transformed into a prompt. The input should be a valid JSON string, which can include nested structures such as lists and dictionaries. The node will parse this JSON text, extract the values, and convert them into a prompt string. The json_text parameter supports multiline input, allowing for complex JSON structures, and it defaults to a simple JSON object with a single key-value pair: {"prompt": "example"}. Providing a well-structured JSON input will directly impact the quality and relevance of the generated prompt.

JSON → Prompt Builder Output Parameters:

prompt

The prompt output is a string that represents the final result of the JSON parsing and conversion process. This output is a comma-separated string composed of the flattened values extracted from the input JSON. The prompt serves as a ready-to-use text that can be fed into AI models or other creative tools. The importance of this output lies in its ability to transform structured data into a format that is easily interpretable and usable for generating creative content. If the input JSON is empty or invalid, the node defaults to outputting the word "photo" as a placeholder prompt.

JSON → Prompt Builder Usage Tips:

• Ensure that the json_text input is a valid JSON string to avoid parsing errors and to ensure the node functions correctly.
• Use the default JSON structure as a template to create more complex JSON inputs, which can help in generating more detailed and specific prompts.
• Experiment with different JSON structures and values to see how they affect the generated prompt, allowing for creative exploration and fine-tuning.

JSON → Prompt Builder Common Errors and Solutions:

JSON 解析错误: <error_message>

• Explanation: This error occurs when the input json_text is not a valid JSON string, which prevents the node from parsing it correctly.
• Solution: Double-check the JSON syntax in the json_text input. Ensure that all brackets, commas, and quotation marks are correctly placed and that the JSON structure is valid. Use online JSON validators to verify the correctness of your JSON input before using it in the node.