index.js

const express = require("express");
const app = express();
const dotenv = require("dotenv");
const mongoose = require("mongoose");
const authRoute = require("./roots/auth");
const userRoute = require("./roots/users");
const postRoute = require("./roots/posts");
const categoryRoute = require("./roots/categories");
const multer = require("multer");
const path = require("path");



dotenv.config();

app.use(express.json());

app.use("/images",express.static(path.join(__dirname,"/images")))

mongoose
  .connect(process.env.MONGO_URL)
  .then(console.log("connected to MongoDB"))
  .catch((err) => console.log(err));


  const storage = multer.diskStorage({
    destination: (req, file, cb) => {
      cb(null, "images");
    },
    filename: (req, file, cb) => {
      cb(null, req.body.name);
    },
  });
  
  const upload = multer({ storage: storage });
  app.post("/api/upload", upload.single("file"), (req, res) => {
    res.status(200).json("File has been uploaded");
  });
  

    app.use("/api/auth",authRoute);
    app.use("/api/users",userRoute);
    app.use("/api/posts",postRoute);
    app.use("/api/categories",categoryRoute);

    app.use(express.static(path.join(__dirname, "/blogapp/build")));

    app.get('*', (req, res) => {
      res.sendFile(path.join(__dirname, '/blogapp/build', 'index.html'));
    }); 

app.listen(process.env.PORT || 5000, () => {
  console.log("backend is running.");
});