app.js

const express = require("express")
const app = express()
const apiRouter = require('./routes/api-router');
const cors = require('cors');

app.use(cors());
app.use(express.json());
app.use('/api', apiRouter);

//ERROR HANDLING

app.all("*", (req, res) => {
  res.status(400).send({ msg: "Invalid path" });
});

app.use((err, req, res, next) => {
  if (err.status && err.msg) {
    res.status(err.status).send({ msg: err.msg });
  } else next(err);
});

app.use((err, req, res, next) => {
  if (err.code === "22P02") {
    res.status(400).send({ msg: "Bad request" });
  } else next(err);
});

app.use((err, req, res, next) => {
  if (err.code === "23502") {
    res.status(400).send({ msg: "Bad request" });
  } else next(err);
});

app.use((err, req, res, next) => {
  if (err.code === "23503") {
    res.status(404).send({ msg: "Not found" });
  } else next(err);
});

app.use((err, req, res, next) => {
  res.status(500).send("Internal server error");
});

module.exports = app;