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POST call remains pending

See original GitHub issue

Describe the bug

The call POST call remains pending

To Reproduce

This is my code

const express = require('express')
const { body, validationResult  } = require('express-validator');
const app = express();
var HashMap = require('hashmap');
const port = process.env.PORT || 80;

var informationsMap = new HashMap();

/*setting the body parser*/
app.use(express.json());


app.listen( port,() =>  {

  console.log (`Example app listening at http://localhost:${port}`)

})


app.get('/api/informations/:infoKey', (request, response) => {
    response.setHeader('Content-Type', 'application/json');
    response.end(JSON.stringify(informationsMap.get(request.params.infoKey)));
})


app.get('/api/informations' ,(request, response) => {


  response.setHeader('Content-Type', 'application/json');
  var responseValue = []
  informationsMap.forEach(function (value , key ){
    var element  = {}
    element.key = key;
    element.value = value;
    responseValue.push({elements:element});
  })
  response.end(JSON.stringify(responseValue));


})

app.post('/api/informations',[body('source').isString , body('sourceTime').isNumeric] ,  (request, response ) =>{
    
      const errors =validationResult(request)
      if (errors){
         response.status(400).end(JSON.stringify(errors))
      }else{
        var key = request.body.source + "_" + request.body.sourceTime
        informationsMap.set (key , request.body )
        response.setHeader('Content-Type', 'application/json');
        response.end(JSON.stringify({}))
      }


})

Expected behavior

With the following call, I expected to return an error

curl --request POST \
  --url http://localhost/api/informations \
  --header 'Content-Type: application/json' \
  --data '{
	"source" : "some_device",
	"sourceTime": "1619029756779",
	"value" : 1.453543543534
}'