Knoten js Beitrag Anfrage Körper undefiniert

Question

Ich bin neu bei Nodejs. Ich bekomme eine Anfrage, aber req.body ist undefiniert. Bitte helfen Sie im Voraus.

ist hier mein Code

Server.js

var express = require('express'), 
app = express(), 
bodyParser = require('body-parser'), 
db = require('./database/database.js'), 
PORT = process.env.PORT || 3000, 
router = express.Router(); 
//Routers 
var userActionsRouter = require('./routes/user-actions.js'); 
var userRouter =  require('./routes/user.js'); 
var transactionRouter = require('./routes/transaction.js'); 
//Routes 
app.use('/api/v2/user_actions/', userActionsRouter); 
app.listen(PORT, function(){ 
    console.log('We are connected'+PORT); 
}) 

Routing-Datei

var express = require('express'), 
router = express.Router(), 
userActionController = require('../controllers/user-actions-controller.js'), 
app = express(); 
//Sign-In 
router.post('/sign_in', userActionController.signIn); 
//Sign-Out 
router.post('/sign_out', userActionController.signOut); 
module.exports = router; 

Meine User-Aktionen-controller.js Datei

var express = require('express'); 
bodyParser = require('body-parser'); 
app = express(); 
app.use(bodyParser.urlencoded({ extended: false })); 
app.use(bodyParser.json()); 
module.exports.signIn = function(req, res){ 
console.log('params: ' + JSON.stringify(req.params));//{} 
console.log('body: ' + JSON.stringify(req.body));// undefined 
console.log('query: ' + JSON.stringify(req.query));//{} 
console.log("data:" +JSON.stringify(req.data));// undefined 
}) 

Answer 1

fügen Sie Ihre 'content-type' mit 'application/json';

'content-type': 'application/json'