[英]Node.js/Express req.body of POST is empty. POST request sent through Postman
目前我的代码是这样的:
var express = require('express');
var router = express.Router();
var db = require('../helpers/db');
var data = {
"1": 127,
"2": 236,
"3": 348
}
router.get('/', function(req, res, next) {
res.send(data);
});
router.get('/:id', function(req, res, next) {
var key = req.params.id;
res.send({ [key]: data[key] });
});
router.post('/:id', function(req, res, next) {
var id = req.params.id;
console.log(id);
})
我的目标是能够将Postman中的值发布到API / values /:id,将该值保存在id键下,然后将“ key”:值对保存在数据变量中。 不幸的是,当我尝试发布任何东西然后使用req.body访问它时,我得到{}或未定义。
app.js
var routes = require('./routes/');
var express = require('express');
var path = require('path');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var expressSession = require('express-session');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(expressSession({
secret: 'secretText',
saveUninitialized: true,
resave: true
}))
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes.home);
app.use('/values', routes.values);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
为此,您需要具有expressjs的body-parser插件。
使用npm install --save body-parser
进行npm install --save body-parser
,然后如下所示使用
var bodyParser = require('body-parser');
express()
.use(bodyParser.urlencoded({
extended: true
}))
.use(bodyParser.json())
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