无法在 node.js 上使用 express 发布

Question

I am trying to make a POST route for adding filenames, but I keep getting:

Cannot GET /api/data?file=example.fasta

error when I trying testing the route. Please could you help me fix this issue.

Here is the code for my router.js:

const fs = require('fs');
const express = require('express');
const bodyParser = require('body-parser');
const parser = require('parser');

const router = express.Router();
router.use(bodyParser.json());
router.use(bodyParser.urlencoded({ extended: false }));

// middleware 
router.use(function (req, res, next) {
    console.log('Received request');
    // hand over route to specific route handler
    next();
});

router.post('/data', function (req, res) {
    if (!req.body.file.toString().endsWith('.fasta')) {
        res.status(400).json({ message: "Bad Request" });
    } else {
        parser.parseFile(req.body.filename)
        res.json({ message: "File parsed and data entered.", location: "/data/" });
        
    }
    
});

server.js

const express = require('express');

// server
const app = express();
const port = 3000;
app.listen(port, function () {
    console.log(`Server running on port ${port}`)
});

// import router
const router = require('./router');
app.use('/api', router)

Answer 1

Try using /api/data?file=example.fasta instead of /api/data/file=example.fasta . As the?, stands for a url query, on the other hand / is routing to somewhere else, another page for example. with / you would go to a page named "file=example.fasta", but with?, you are telling the code that you want a file name example.fasta.