comfy_backend/src/biz/txt2img.ts
2024-05-25 23:16:52 +08:00

84 lines
3.8 KiB
TypeScript

import { RequestHandler, Txt2ImgRequest } from "../type/request";
import { txt2imgAPIformatJSON, txt2imgAPIformatExtraData } from "../comfyJson/txt2img";
import axios from "axios";
import { selectNodeFromApiJSONbyID } from "../utils/editComfyJson";
import WebSocket from "ws";
import { readJSONFile, saveJSONFile } from "../utils/jsonReader";
const baseUrl = "http://47.108.92.176:20000";
const baseWsUrl = "ws://47.108.92.176:20000";
// const baseUrl = "http://localhost:8188";
// const baseWsUrl = "ws://localhost:8188";
axios.defaults.baseURL = baseUrl;
const Txt2ImgHandler: RequestHandler<Txt2ImgRequest, any> = async (ctx, next) => {
console.log(ctx.method);
ctx.set('Access-Control-Allow-Origin', '*')
ctx.set('Access-Control-Allow-Headers', 'Content-Type,Content-Length,Authorization,Accept,X-Requested-With')
ctx.set('Access-Control-Allow-Methods', 'PUT,POST,GET,DELETE,OPTIONS')
if (ctx.method == 'OPTIONS') {
ctx.body = 200;
return;
}
const requestBody = ctx.request.body;
const { prompt, loraDetail, loraModel } = requestBody;
const inputNode = selectNodeFromApiJSONbyID(txt2imgAPIformatJSON, "33");
let temp = "";
let preViewBlobs: any = [];
inputNode.inputs.string = prompt;
try {
ctx.body = {
data: await new Promise((resolve, reject) => {
const taskID = Math.random().toFixed(10);
const ws = new WebSocket(`${baseWsUrl}/ws?clientId=${taskID}`);
ws.onopen = () => {
try {
axios.post("/prompt", {
client_id: taskID,
prompt: txt2imgAPIformatJSON,
// extra_data: txt2imgAPIformatExtraData
});
console.log(`ok`);
} catch (error) {
console.log(error);
}
ws.onmessage = (event) => {
if (typeof event.data === "string") {
const { type, data } = JSON.parse(event.data);
// if (type === "executed") {
// if (data.node === '94') {
// resolve(data.output.images[0].filename)
// }
// }
if (type === "executed") {
if (data.node === '21') {
temp = data.output.text[0];
}
if (data.node === '94') {
console.log(data.output);
const filePath = './data.json';
readJSONFile(filePath)
.then((data1: any) => {
console.log('读取的JSON数据:', data1);
// 修改对象
data1.push({ prompt: prompt, url: baseUrl + '/view?filename=' + data.output.images[0].filename, like: 0, index: data1.length+1 })
// 保存回JSON文件
saveJSONFile(filePath, data1);
})
resolve({ prompt: temp, url: baseUrl + '/view?filename=' + data.output.images[0].filename });
}
} else if (type === "executing") {
}
} else if (event.data instanceof Buffer) {
}
}
}
})
}
} catch (error) {
console.log(error);
}
}
export default Txt2ImgHandler;