Initial commit for open-source version

backend/src/utils/axiosInstance.ts

@@ -0,0 +1,28 @@
+import axios, { AxiosInstance, AxiosRequestHeaders } from "axios";
+import tunnel from "tunnel";
+import { config } from "../config";
+
+export function createAxiosInstance(
+  baseURL: string,
+  headers: AxiosRequestHeaders,
+  useProxy: boolean = false
+): AxiosInstance {
+  let agent;
+
+  if (useProxy) {
+    agent = tunnel.httpsOverHttp({
+      proxy: {
+        host: config.httpProxy.host,
+        port: Number(config.httpProxy.port),
+      },
+    });
+  }
+
+  return axios.create({
+    baseURL,
+    timeout: 30000,
+    headers,
+    httpsAgent: useProxy ? agent : undefined,
+    withCredentials: true,
+  });
+}

backend/src/utils/handleError.ts

@@ -0,0 +1,11 @@
+import { Response, NextFunction } from "express";
+import { Logger } from "../utils/logger";
+export default function handleError(
+  res: Response,
+  error: any,
+  message: string,
+  next: NextFunction
+) {
+  Logger.error(message, error);
+  next(error || { success: false, message });
+}

backend/src/utils/logger.ts

@@ -0,0 +1,38 @@
+type LogLevel = "info" | "success" | "warn" | "error";
+
+export const Logger = {
+  info(...args: any[]) {
+    this.log("info", ...args);
+  },
+
+  success(...args: any[]) {
+    this.log("success", ...args);
+  },
+
+  warn(...args: any[]) {
+    this.log("warn", ...args);
+  },
+
+  error(...args: any[]) {
+    this.log("error", ...args);
+  },
+
+  log(level: LogLevel, ...args: any[]) {
+    const timestamp = new Date().toISOString();
+    const prefix = `[${timestamp}] [${level.toUpperCase()}]`;
+
+    switch (level) {
+      case "success":
+        console.log(prefix, ...args);
+        break;
+      case "warn":
+        console.warn(prefix, ...args);
+        break;
+      case "error":
+        console.error(prefix, ...args);
+        break;
+      default:
+        console.log(prefix, ...args);
+    }
+  },
+};

backend/src/utils/responseHandler.ts

@@ -0,0 +1,5 @@
+import { Response } from "express";
+
+export const handleResponse = (res: Response, data: any, success: boolean) => {
+  res.json({ success, data });
+};