Ethanfel/Comfyui-JSON-Manager
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Comfyui-JSON-Manager/json_loader.py

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import json
import os
# --- Shared Helper ---
def read_json_data(json_path):
if not os.path.exists(json_path):
print(f"[JSON Loader] Warning: File not found at {json_path}")
return {}
try:
with open(json_path, 'r') as f:
return json.load(f)
except Exception as e:
print(f"[JSON Loader] Error: {e}")
return {}
# ==========================================
# 1. STANDARD NODES (Single File)
# ==========================================
class JSONLoaderLoRA:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "STRING")
RETURN_NAMES = ("lora_1_high", "lora_1_low", "lora_2_high", "lora_2_low", "lora_3_high", "lora_3_low")
FUNCTION = "load_loras"
CATEGORY = "utils/json"
def load_loras(self, json_path):
data = read_json_data(json_path)
return (
str(data.get("lora 1 high", "")), str(data.get("lora 1 low", "")),
str(data.get("lora 2 high", "")), str(data.get("lora 2 low", "")),
str(data.get("lora 3 high", "")), str(data.get("lora 3 low", ""))
)
class JSONLoaderStandard:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "FLOAT", "INT", "STRING", "STRING", "STRING")
RETURN_NAMES = ("general_prompt", "general_negative", "current_prompt", "negative", "camera", "flf", "seed", "video_file_path", "reference_image_path", "flf_image_path")
FUNCTION = "load_standard"
CATEGORY = "utils/json"
def load_standard(self, json_path):
data = read_json_data(json_path)
def to_float(val):
try: return float(val)
except: return 0.0
def to_int(val):
try: return int(float(val))
except: return 0
return (
str(data.get("general_prompt", "")), str(data.get("general_negative", "")),
str(data.get("current_prompt", "")), str(data.get("negative", "")),
str(data.get("camera", "")), to_float(data.get("flf", 0.0)),
to_int(data.get("seed", 0)), str(data.get("video file path", "")),
str(data.get("reference image path", "")), str(data.get("flf image path", ""))
)
class JSONLoaderVACE:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "FLOAT", "INT", "INT", "INT", "INT", "STRING", "INT", "INT", "STRING", "STRING")
RETURN_NAMES = ("general_prompt", "general_negative", "current_prompt", "negative", "camera", "flf", "seed", "frame_to_skip", "input_a_frames", "input_b_frames", "reference_path", "reference_switch", "vace_schedule", "video_file_path", "reference_image_path")
FUNCTION = "load_vace"
CATEGORY = "utils/json"
def load_vace(self, json_path):
data = read_json_data(json_path)
def to_float(val):
try: return float(val)
except: return 0.0
def to_int(val):
try: return int(float(val))
except: return 0
return (
str(data.get("general_prompt", "")), str(data.get("general_negative", "")),
str(data.get("current_prompt", "")), str(data.get("negative", "")),
str(data.get("camera", "")), to_float(data.get("flf", 0.0)),
to_int(data.get("seed", 0)),
to_int(data.get("frame_to_skip", 81)), to_int(data.get("input_a_frames", 0)),
to_int(data.get("input_b_frames", 0)), str(data.get("reference path", "")),
to_int(data.get("reference switch", 1)), to_int(data.get("vace schedule", 1)),
str(data.get("video file path", "")), str(data.get("reference image path", ""))
)
# ==========================================
# 2. BATCH NODES
# ==========================================
class JSONLoaderBatchLoRA:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False}), "sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "STRING")
RETURN_NAMES = ("lora_1_high", "lora_1_low", "lora_2_high", "lora_2_low", "lora_3_high", "lora_3_low")
FUNCTION = "load_batch_loras"
CATEGORY = "utils/json"
def load_batch_loras(self, json_path, sequence_number):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
return (
str(target_data.get("lora 1 high", "")), str(target_data.get("lora 1 low", "")),
str(target_data.get("lora 2 high", "")), str(target_data.get("lora 2 low", "")),
str(target_data.get("lora 3 high", "")), str(target_data.get("lora 3 low", ""))
)
class JSONLoaderBatchI2V:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False}), "sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "FLOAT", "INT", "STRING", "STRING", "STRING")
RETURN_NAMES = ("general_prompt", "general_negative", "current_prompt", "negative", "camera", "flf", "seed", "video_file_path", "reference_image_path", "flf_image_path")
FUNCTION = "load_batch_i2v"
CATEGORY = "utils/json"
def load_batch_i2v(self, json_path, sequence_number):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
def to_float(val):
try: return float(val)
except: return 0.0
def to_int(val):
try: return int(float(val))
except: return 0
return (
str(target_data.get("general_prompt", "")), str(target_data.get("general_negative", "")),
str(target_data.get("current_prompt", "")), str(target_data.get("negative", "")),
str(target_data.get("camera", "")), to_float(target_data.get("flf", 0.0)),
to_int(target_data.get("seed", 0)), str(target_data.get("video file path", "")),
str(target_data.get("reference image path", "")), str(target_data.get("flf image path", ""))
)
class JSONLoaderBatchVACE:
@classmethod
def INPUT_TYPES(s):
return {"required": {"json_path": ("STRING", {"default": "", "multiline": False}), "sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999})}}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "FLOAT", "INT", "INT", "INT", "INT", "STRING", "INT", "INT", "STRING", "STRING")
RETURN_NAMES = ("general_prompt", "general_negative", "current_prompt", "negative", "camera", "flf", "seed", "frame_to_skip", "input_a_frames", "input_b_frames", "reference_path", "reference_switch", "vace_schedule", "video_file_path", "reference_image_path")
FUNCTION = "load_batch_vace"
CATEGORY = "utils/json"
def load_batch_vace(self, json_path, sequence_number):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
def to_float(val):
try: return float(val)
except: return 0.0
def to_int(val):
try: return int(float(val))
except: return 0
return (
str(target_data.get("general_prompt", "")), str(target_data.get("general_negative", "")),
str(target_data.get("current_prompt", "")), str(target_data.get("negative", "")),
str(target_data.get("camera", "")), to_float(target_data.get("flf", 0.0)),
to_int(target_data.get("seed", 0)), to_int(target_data.get("frame_to_skip", 81)),
to_int(target_data.get("input_a_frames", 0)), to_int(target_data.get("input_b_frames", 0)),
str(target_data.get("reference path", "")), to_int(target_data.get("reference switch", 1)),
to_int(target_data.get("vace schedule", 1)), str(target_data.get("video file path", "")),
str(target_data.get("reference image path", ""))
)
# ==========================================
# 3. UNIVERSAL CUSTOM NODES (1, 3, 6 Slots)
# ==========================================
class JSONLoaderCustom1:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"json_path": ("STRING", {"default": "", "multiline": False}),
"sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999}),
},
"optional": { "key_1": ("STRING", {"default": "", "multiline": False}) }
}
RETURN_TYPES = ("STRING",)
RETURN_NAMES = ("val_1",)
FUNCTION = "load_custom"
CATEGORY = "utils/json"
def load_custom(self, json_path, sequence_number, key_1=""):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
return (str(target_data.get(key_1, "")),)
class JSONLoaderCustom3:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"json_path": ("STRING", {"default": "", "multiline": False}),
"sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999}),
},
"optional": {
"key_1": ("STRING", {"default": "", "multiline": False}),
"key_2": ("STRING", {"default": "", "multiline": False}),
"key_3": ("STRING", {"default": "", "multiline": False})
}
}
RETURN_TYPES = ("STRING", "STRING", "STRING")
RETURN_NAMES = ("val_1", "val_2", "val_3")
FUNCTION = "load_custom"
CATEGORY = "utils/json"
def load_custom(self, json_path, sequence_number, key_1="", key_2="", key_3=""):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
return (
str(target_data.get(key_1, "")),
str(target_data.get(key_2, "")),
str(target_data.get(key_3, ""))
)
class JSONLoaderCustom6:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"json_path": ("STRING", {"default": "", "multiline": False}),
"sequence_number": ("INT", {"default": 1, "min": 1, "max": 9999}),
},
"optional": {
"key_1": ("STRING", {"default": "", "multiline": False}),
"key_2": ("STRING", {"default": "", "multiline": False}),
"key_3": ("STRING", {"default": "", "multiline": False}),
"key_4": ("STRING", {"default": "", "multiline": False}),
"key_5": ("STRING", {"default": "", "multiline": False}),
"key_6": ("STRING", {"default": "", "multiline": False})
}
}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING", "STRING")
RETURN_NAMES = ("val_1", "val_2", "val_3", "val_4", "val_5", "val_6")
FUNCTION = "load_custom"
CATEGORY = "utils/json"
def load_custom(self, json_path, sequence_number, key_1="", key_2="", key_3="", key_4="", key_5="", key_6=""):
data = read_json_data(json_path)
target_data = data
if "batch_data" in data and isinstance(data["batch_data"], list) and len(data["batch_data"]) > 0:
idx = (sequence_number - 1) % len(data["batch_data"])
target_data = data["batch_data"][idx]
return (
str(target_data.get(key_1, "")), str(target_data.get(key_2, "")),
str(target_data.get(key_3, "")), str(target_data.get(key_4, "")),
str(target_data.get(key_5, "")), str(target_data.get(key_6, ""))
)
# --- Mappings ---
NODE_CLASS_MAPPINGS = {
"JSONLoaderLoRA": JSONLoaderLoRA,
"JSONLoaderStandard": JSONLoaderStandard,
"JSONLoaderVACE": JSONLoaderVACE,
"JSONLoaderBatchLoRA": JSONLoaderBatchLoRA,
"JSONLoaderBatchI2V": JSONLoaderBatchI2V,
"JSONLoaderBatchVACE": JSONLoaderBatchVACE,
"JSONLoaderCustom1": JSONLoaderCustom1,
"JSONLoaderCustom3": JSONLoaderCustom3,
"JSONLoaderCustom6": JSONLoaderCustom6
}
NODE_DISPLAY_NAME_MAPPINGS = {
"JSONLoaderLoRA": "JSON Loader (LoRAs Only)",
"JSONLoaderStandard": "JSON Loader (Standard/I2V)",
"JSONLoaderVACE": "JSON Loader (VACE Full)",
"JSONLoaderBatchLoRA": "JSON Batch Loader (LoRAs)",
"JSONLoaderBatchI2V": "JSON Batch Loader (I2V)",
"JSONLoaderBatchVACE": "JSON Batch Loader (VACE)",
"JSONLoaderCustom1": "JSON Loader (Custom 1)",
"JSONLoaderCustom3": "JSON Loader (Custom 3)",
"JSONLoaderCustom6": "JSON Loader (Custom 6)"
}
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