[英]Cannot PUT error in Node Express app
我的get
和post
API 正在工作,但由于某种原因我的app.put
没有。
当我点击localhost:3001/contacts/1
作为PostMan 中的PUT
时,我什至看不到我的简单 console.log:
app.put('/api/contacts:id', (req, res) => {
console.log('req.params.id', req.params.id);
res.json(contact);
});
app.put('/api/contacts:id', (req, res) => {
console.log('req.params.id', req.params.id);
res.json(contact);
});
// Requires ////////////////////////////////////////////////////////////////////
const express = require('express');
const app = express();
const bodyParser = require('body-parser'); // req.body
const cors = require('cors');
const R = require('ramda');
// Variables ///////////////////////////////////////////////////////////////////
const hostname = 'localhost';
const port = 3001;
let contacts = require('./data');
// Logic ///////////////////////////////////////////////////////////////////////
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cors());
app.get('/api/contacts', (req, res) => {
if (!contacts || R.isEmpty(contacts)) returnError(res, 'No Contacts found');
res.json(contacts);
});
app.get('/api/contacts/:id', (req, res) => {
const contact = contacts.filter(contact => contact.id == req.params.id);
if (R.isEmpty(contact)) returnError(res, 'No Contact found');
res.json(R.head(contact));
});
app.post('/api/contacts', (req, res) => {
const contact = {
id: contacts.length + 1,
first_name: req.body.first_name,
last_name: req.body.last_name,
email: req.body.email,
website: req.body.website
}
contacts.push(contact);
res.json(contact);
});
app.put('/api/contacts:id', (req, res) => {
console.log('req.params.id', req.params.id);
// const contact = contacts.filter(contact => {
// return contact.id == req.params.id
// })[0];
// console.log('1 contact', contact);
// const index = contacts.indexOf(contact);
// const keys = Object.keys(req.body);
// keys.forEach(key => {
// contact[key] = req.body[key];
// });
// console.log('2 contact', contact);
// contacts[index] = contact;
// console.log('contacts', contacts);
// res.json(contacts[index]);
res.json(contact);
});
const returnError = (res, msg) => res.status(404).json({ message: msg });
app.listen(port, hostname, () => {
console.log(`server is running at http://${hostname}:${port}`);
});
这一行看起来像是一个错字:
app.put('/api/contacts:id', (req, res) => {
添加“/”以阅读:
app.put('/api/contacts/:id', (req, res) => {
您的网址如下所示:
app.put('/api/contacts:id', (req, res) => {,
但它应该是这样的:
app.put('/api/contacts/:id', (req, res) => {
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