How do I perform a POST request properly?-CodePudding

Working on a simple API. Managed to get the GET & DELETE requests working, but I have some issues with the POST request. Pretty sure this is a noobie mistake, but I'm missing the logic here.

This is the file where all the routes are defined.

import express from 'express';    
import fs from 'fs';

const router = express.Router();

'use strict';
let rawdata = fs.readFileSync('api/resources/vehicles.json');
let vehicles = JSON.parse(rawdata);
let vehiclesArray = vehicles.vehicles;

let data = JSON.stringify(vehicles);
fs.writeFileSync('api/resources/vehicles.json', data);

router.get('/', (req, res, next) => {
    res.status(200).json(vehiclesArray);
});

router.get('/:id', (req, res, next) => {
    let id = req.params.id;
    res.status(200).send(vehiclesArray[(id-1)]);
});

router.delete('/:id', (req, res, next) => {
    let id = req.params.id;
    const removedVehicle = vehiclesArray.splice(id, 1);
    res.status(200).json({
        message: `Vechicle ${removedVehicle} with id ${id} was removed`
    });
});

router.post('/', (req, res, next) => {
    let id = vehiclesArray.length   1;
    
    const vehicle = { 
        "id" : id, 
        "type" : req.params.type, 
        "brand" : req.params.brand, 
        "model" : req.params.model, 
        "production_year" : req.params.production_year, 
        "kilometers_driven" : req.params.kilometers_driven, 
        "price" : req.params.price
    };
    
    res.status(201).send({
    message: `POSTed new vehicle: ${vehicle}`,
    vehicle: vehicle
});
    res.status(201).send(vehiclesArray.push(vehicle));
    
});

export default router;

Inside my POST method I defined the vehicle, but once I try sending it I get the following in Postman, namely a confirmation of an added object and the object, but only with the id property

Can someone please give me a hint maybe on what I'm doing wrong? Do I also need a class declaration? Thanks!

CodePudding user response：

Look at

GET below, just to check if the object was indeed added:

Also helpful in my endeavor: https://www.npmjs.com/package/body-parser