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使用js log库和python FastApi完成 微信小程序日志保存与上传

简介

使用log.js 通过定义日志输出格式：console.log([${log.level}] ${log.timestamp}: ${log.message}); 输出日志 通过http post请求上传日志数据到服务端

微信程序日志保存与上传

// log.js - 微信小程序日志库
import admin_url from '@/common/config.js'
const user_msg = uni.getStorageSync("token")
// log.js
class Logger {
	constructor() {
		this.logs = []; // 存储日志记录的数组
		this.levels = { // 定义日志级别
			INFO: 'INFO',
			DEBUG: 'DEBUG',
			ERROR: 'ERROR'
		};
		this.isDebug = true; // 控制是否在控制台输出日志，调试期间开启
		this.uploadEndpoint ='/api/upload-log'; // 上传日志的接口地址
	}

	// 格式化日志
	formatLog(level, message) {
		return {
			level: level,
			message: user_msg + ": " + message,
			timestamp: new Date().toISOString()
		};
	}

	// 打印日志到控制台
	printLog(log) {
		if (this.isDebug) {
			console.log(`[${log.level}] ${log.timestamp}: ${log.message}`);
		}
	}

	// 记录日志到数组
	log(level, message) {
		const logEntry = this.formatLog(level, message);
		this.logs.push(logEntry);
		this.printLog(logEntry);
		wx.setStorageSync('appLogs', this.logs); // 同步存储到本地
	}

	// 各级别的日志记录方法
	info(message) {
		this.log(this.levels.INFO, message);
	}

	debug(message) {
		this.log(this.levels.DEBUG, message);
	}

	error(message) {
		this.log(this.levels.ERROR, message);
	}

	
	}
}

const logger = new Logger();
export default logger;

日志输出使用

import logger from '../log.js'

logger.info('输出示例')

服务端日志上传接口定义

@logger.catch
@router.post("/upload-log")
async def upload_log(request: LogUploadRequest):
    logs = request.logs
    if not logs:
        raise HTTPException(status_code=400, detail="日志内容不能为空")

    # 将日志数据保存到文件
    save_logs_to_file([log.dict() for log in logs])

    return {"status": "success", "message": f"{len(logs)}条日志已上传"}


# 日志存储文件路径
import json
from typing import List, Dict

from loguru import logger

LOG_FILE_PATH = "wechat_logs.log"

import uuid
from datetime import datetime

# 获取当前时间，并格式化为指定格式
current_timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")[:-3]
# print(current_timestamp)

file_name = str(uuid.uuid4()) + current_timestamp


# 写入日志到文件
@logger.catch
def save_logs_to_file(logs: List[Dict]):
    try:
        with open("/wechat_logs/" + LOG_FILE_PATH + "_" + file_name, "a") as log_file:
            for log in logs:
                log_file.write(json.dumps(log) + "\n")
    except Exception as e:
        logger.error(f"日志保存到文件失败: {e}")

微信小程序调用api上传log

// 批量上传日志到服务器
	uploadLogs(api) {
		const logsToUpload = wx.getStorageSync('appLogs') || [];
		if (logsToUpload.length === 0) return;

		wx.request({
			url:  api + this.uploadEndpoint,
			method: 'POST',
			data: {
				logs: logsToUpload
			},
			header: {
				'content-type': 'application/json'
			},
			success: (res) => {
				console.log("日志上传成功", res.data);
				wx.removeStorageSync('appLogs'); // 上传成功后清空本地存储的日志
			},
			fail: (err) => {
				console.error("日志上传失败", err);
			}
		});

输出结果示例

{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:02:26.322Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: start select user login msg", "timestamp": "2024-11-11T09:02:26.325Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:02:26.520Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: start select user login msg", "timestamp": "2024-11-11T09:02:26.523Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:02:26.593Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:02:26.706Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:05:19.227Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: start select user login msg", "timestamp": "2024-11-11T09:05:19.235Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:05:19.389Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: start select user login msg", "timestamp": "2024-11-11T09:05:19.392Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:05:19.441Z"}
{"level": "DEBUG", "message": "obGGb7aolzF2Tm0FaO0rn4gik1WQ: [object Object]", "timestamp": "2024-11-11T09:05:19.676Z"}