MERN部署问题heroku

时间:2020-01-26 20:58:39

标签: node.js web heroku deployment mern

我只是从后端开始,我想部署我的Crud应用程序的后端,但是我陷入了路线困境。在heroku上部署后,我只得到了app.get('/')的一部分。我找不到任何router.get('/ getData'..或router.post('/ updateData'..

这是已部署的heroku链接:

对于app.get('/'):https://vast-beyond-50574.herokuapp.com/

router.get('/ getData):https://vast-beyond-50574.herokuapp.com/getData

对于router.post('/ updateData'):https://vast-beyond-50574.herokuapp.com/updateData

这是后端server.js的代码

const express = require('express');
var cors = require('cors');
const bodyParser = require('body-parser');
const logger = require('morgan');
const Data = require('./data');
const API_PORT = 3001;
const app = express();

app.use(cors());
const router = express.Router();

mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost/backend');
let db = mongoose.connection;
db.once('open', () => console.log('connected to the database'));
db.on('error', console.error.bind(console, 'MongoDB connection error:'));

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(logger('dev'));

router.get('/getData', (req, res) => {
    Data.find((err, data) => {
        if (err) return res.json({ success: false, error: err });
        return res.json({ success: true, data: data });
    });
});

router.post('/updateData', (req, res) => {
    const { id, update } = req.body;
    Data.findByIdAndUpdate(id, update, (err) => {
        if (err) return res.json({ success: false, error: err });
        return res.json({ success: true });
    });
});

router.delete('/deleteData', (req, res) => {
    const { id } = req.body;
    Data.findByIdAndRemove(id, (err) => {
        if (err) return res.send(err);
        return res.json({ success: true });
    });
});

router.post('/putData', (req, res) => {
    let data = new Data();
    const { id, message } = req.body;
    if ((!id && id !== 0) || !message) {
        return res.json({
            success: false,
            error: 'INVALID INPUTS',
        });
    }
    data.message = message;
    data.id = id;
    data.save((err) => {
        if (err) return res.json({ success: false, error: err });
        return res.json({ success: true });
    });
});

app.get('/', (req, res) => {
    res.send('Deployed!');
});

app.use('/api', router);
const PORT = process.env.PORT || 3000
app.listen(PORT, () => console.log(`LISTENING ON PORT ${PORT}`));```

1 个答案:

答案 0 :(得分:0)

您正在/api路由(app.use('/api', router);)内使用路由器,这意味着所有这些路由都将以/api为前缀。因此,您应该可以访问https://vast-beyond-50574.herokuapp.com/api/getData并查看数据。 (但是,我尝试了此操作,但遇到了另一个错误,您将不得不单独调试它。)