javascript - req.body 没有出现在 postman 中

Question

I was sending the post request in raw and json format...

this is the header configuration

So heres the code:

//app.js

const port =  process.env.PORT || 3000;
const express = require ('express');
const app = express();
const jsonParser = require('body-parser').json;
const routes = require('./routes/routes.js');


app.use(jsonParser());

app.use("/questions", routes);

//All routine stuff I'd say...

app.listen(port,(err)=>{
    if (!err)
            {console.log(`The express server is running at http://localhost:${port}`)}
});
//routes.js
const express = require('express');
const router = express.Router();

//GET /questions
//return all the questions from the db
router.get('/', function(req, res){
    res.json({response: "You sent me a get request"}); 
});

//POST /questions
//Route for creating questions
router.post("/", function(req, res){
    res.json({
        response: "you sent me a POST request",
        body: req.body

    });
});




module.exports = router;

this is the error i get after the post request

这是我不断收到的错误..我不知道应该如何解决它..我只是无法让 req.body 出现在 Postman 中...我不确定我是否错过了任何内容或没有添加任何内容或者也许在齿轮上扔了一把 Spanner ...任何帮助都是值得赞赏的。

//The error is as following
SyntaxError: Unexpected token c in JSON at position 3
    at JSON.parse (<anonymous>)
    at parse (C:\Restful\node_modules\body-parser\lib\types\json.js:89:19)
    at C:\Restful\node_modules\body-parser\lib\read.js:121:18
    at invokeCallback (C:\Restful\node_modules\raw-body\index.js:224:16)
    at done (C:\Restful\node_modules\raw-body\index.js:213:7)
    at IncomingMessage.onEnd (C:\Restful\node_modules\raw-body\index.js:273:7)
    at emitNone (events.js:106:13)
    at IncomingMessage.emit (events.js:208:7)
    at endReadableNT (_stream_readable.js:1064:12)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)

Answer 1

添加屏幕截图中指定的请求正文，这将起作用，因为对象键需要是字符串: