javascript - req.body & req.params.id undefined (PUT & PATCH)

Question

I'm using the express.json() before the app.patch but both req.body & req.params.id return undefined. I've tried to change the route to /:id but it didn't work. It works for app.get and app.post.

Headers: Content-Type: application/json

const express = require("express");
const dotenv = require("dotenv")
dotenv.config({ path: ".env" });

const app = express();

app.use(express.json());
    
app.patch("/api/v1/", (res, req, next) => {
  console.log(req.body);
});

const PORT = process.env.PORT || 5000;
app.listen(
  PORT,
  console.log(
    `Server running in ${process.env.NODE_ENV} mode on port ${PORT}`.yellow.bold
  )
);

Any ideas? Thank you.

question from:https://stackoverflow.com/questions/65893055/req-body-req-params-id-undefined-put-patch

Answer 1

You have it mixed up.

req comes before res.

app.patch("/api/v1/", (req, res, next) => {
  console.log(req.body);
});

Also, make sure you add a / before api.