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【生成模型】【ComfyUI（三）】使用WebAPI批量调用ComfyUI

news 来源：原创 2025/5/26 12:27:16

可以参考【生成模型】【ComfyUI（一）】Flux与Flux-Fill部署与API调用中Flux-Fill部分

1. 调整Workflow

我们要部署以下workflow
在这里插入图片描述
做两个修改

输入改为从Load Image(Base64) 读入图片，当然使用上面的从路径中读图也是可以的
输出改为SaveImageWebsocket节点，通过websocket返回图片，当然使用SaveImage给定路径也是可以的

2. 导出API调用json文件

3. 使用接口调用

import requests, websocket
import base64, io
from PIL import Image, ImageColor

def buffer2img(imagebuf, mode='RGB', input_type='base64'):
    if input_type == 'base64':
        buf = base64.b64decode(imagebuf)
    elif input_type == 'bytes':
        buf = imagebuf
    else:
        raise ValueError(f"input_type should in ['base64', 'bytes'], but got {input_type}")
    pil_img = Image.open(io.BytesIO(buf)).convert(mode)
    return pil_img

def get_server_address():
    server_address = "127.0.0.1:8081"
    return server_address


class ComfyUIRequest:
    def __init__(self):
        pass

    def queue_prompt(self, prompt, client_id, server_address):
        """
            将任务提交给server_address上的ComfyUI，进入处理队列，同时获得返回的trace_id
        """
        p = {"prompt": prompt, "client_id": client_id}
        # data = json.dumps(p).encode('utf-8')
        # req =  urllib.request.Request("http://{}/prompt".format(server_address), data=data)
        # json.loads(urllib.request.urlopen(req).read())
        response = requests.post(f"http://{server_address}/prompt", json=p)
        if response.status_code == 200:
            return response.json()
        else:
            print(f"{response}, {response.text}")
            return None
    
    def get_images_from_web_socket(self, prompt, prompt_id, client_id, server_address):
        ws = websocket.WebSocket()
        ws.connect("ws://{}/ws?clientId={}".format(server_address, client_id))
        
        output_images = {}
        current_node = ""
        while True:
            out = ws.recv()
            print(out, type(out))
            # {"type": "progress", "data": {"value": 0, "max": 1, "prompt_id": "b2f90b54-b022-4993-8042-389455b04134", "node": "50"}} <class 'str'>
            if isinstance(out, str):
                message = json.loads(out)
                # if message['type'] == 'executing':  # progress
                if message['type'] in ['executing', 'progress']:  # progress
                    data = message['data']
                    if 'prompt_id' in data and data['prompt_id'] == prompt_id:
                        if data['node'] is None:
                            break #Execution is done
                        else:
                            current_node = data['node']
            else:
                if prompt[current_node]["class_type"] == "SaveImageWebsocket":
                    images_output = output_images.get(current_node, [])
                    images_output.append(out[8:])
                    output_images[current_node] = images_output
    
        return output_images

    def __call__(self, prompt, client_id, server_address=None):
        if server_address is None:
            server_address = get_server_address()
        req_data = self.queue_prompt(prompt, client_id, server_address)  # 发起请求，任务启动就会返回
        print(f"req to {req_data}")
        prompt_id = req_data['prompt_id']
        out_images = self.get_images_from_web_socket(prompt, prompt_id, client_id, server_address)  # 阻塞式接受返回
        return out_images


comfyui_reqest = ComfyUIRequest()

import json

defalut_params = json.load(open("05_flux_fill_outpaint_fp8_3.json"))
defalut_params["17"]["inputs"]["image"] = os.path.abspath("524169.jpg")    # input image has mul masked
defalut_params["47"]["inputs"]["image"] = os.path.abspath("524169_mask.jpg")  # mask image

outs = comfyui_reqest(defalut_params, client_id="12347")
result_img = buffer2img(outs['50'][0], input_type='bytes')

print(f"req to {req_data}")打印如下：

req to {'prompt_id': '024d4de7-258b-461c-95fa-a0de3f2fefb0', 'number': 45, 'node_errors': {}}

print(out, type(out))打印如下

{"type": "status", "data": {"status": {"exec_info": {"queue_remaining": 1}}, "sid": "16745628-e6ae-46a9-99a3-fa3a5d53f586"}} <class 'str'>
{"type": "execution_cached", "data": {"nodes": ["7", "23", "26", "31", "32", "34", "38", "39", "55", "56", "57", "58"], "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "timestamp": 1740473304127}} <class 'str'>
{"type": "executed", "data": {"node": "58", "display_node": "58", "output": {"images": [{"filename": "ComfyUI_00022_.png", "subfolder": "", "type": "output"}]}, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722"}} <class 'str'>
{"type": "executed", "data": {"node": "57", "display_node": "57", "output": {"images": [{"filename": "ComfyUI_temp_ukmnl_00001_.png", "subfolder": "", "type": "temp"}]}, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722"}} <class 'str'>
{"type": "executing", "data": {"node": "52", "display_node": "52", "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722"}} <class 'str'>
{"type": "progress", "data": {"value": 1, "max": 20, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "52"}} <class 'str'>
{"type": "progress", "data": {"value": 2, "max": 20, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "52"}} <class 'str'>
{"type": "progress", "data": {"value": 3, "max": 20, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "52"}} <class 'str'>
......
{"type": "progress", "data": {"value": 19, "max": 20, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "52"}} <class 'str'>
{"type": "progress", "data": {"value": 20, "max": 20, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "52"}} <class 'str'>
{"type": "executing", "data": {"node": "8", "display_node": "8", "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722"}} <class 'str'>
{"type": "executing", "data": {"node": "50", "display_node": "50", "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722"}} <class 'str'>
{"type": "progress", "data": {"value": 0, "max": 1, "prompt_id": "eb77c8c4-40d5-4dc0-a6a9-234c25cb4722", "node": "50"}} <class 'str'>