Cannot set headers after they are sent to the client only after ERROR after 5 retries

I have backend server which is handle some callback and I want to set a cookie for the client then redirect the user to my Reactjs client side, but I dont know why this works for 5 times only, then this will throw an error message:"Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client... at D:....callback.js:10:13"

My code:

const express = require('express');

const router = express.Router();

router.get('/callback', catchAsync(async (req, res) => {



  const farFuture = new Date(new Date().getTime() + (1000*60*60*24*365*5)); // ~5y



  if(req.headers.cookie.includes("cookie")){

     console.log("cookie already set")

  }else{

     res.cookie('cookie', { //!!!LINE 10!!!

       data: "data..."

     }, {expires: farFuture})

  }



  res.redirect('http://someurl:3000');

  return res.end()

}));

asked Jan 2 at 15:14

Gery D

return at redirect ?

– feiiiiii
Jan 2 at 16:27

Do you mean return res.redirect('http://someurl:3000')? I tried that, didnt work

– Gery D
Jan 2 at 19:49

add a comment |

My code:

const express = require('express');

const router = express.Router();

router.get('/callback', catchAsync(async (req, res) => {



  const farFuture = new Date(new Date().getTime() + (1000*60*60*24*365*5)); // ~5y



  if(req.headers.cookie.includes("cookie")){

     console.log("cookie already set")

  }else{

     res.cookie('cookie', { //!!!LINE 10!!!

       data: "data..."

     }, {expires: farFuture})

  }



  res.redirect('http://someurl:3000');

  return res.end()

}));

asked Jan 2 at 15:14

Gery D

return at redirect ?

– feiiiiii
Jan 2 at 16:27

Do you mean return res.redirect('http://someurl:3000')? I tried that, didnt work

– Gery D
Jan 2 at 19:49

add a comment |

My code:

const express = require('express');

const router = express.Router();

router.get('/callback', catchAsync(async (req, res) => {



  const farFuture = new Date(new Date().getTime() + (1000*60*60*24*365*5)); // ~5y



  if(req.headers.cookie.includes("cookie")){

     console.log("cookie already set")

  }else{

     res.cookie('cookie', { //!!!LINE 10!!!

       data: "data..."

     }, {expires: farFuture})

  }



  res.redirect('http://someurl:3000');

  return res.end()

}));

asked Jan 2 at 15:14

Gery D

My code:

const express = require('express');

const router = express.Router();

router.get('/callback', catchAsync(async (req, res) => {



  const farFuture = new Date(new Date().getTime() + (1000*60*60*24*365*5)); // ~5y



  if(req.headers.cookie.includes("cookie")){

     console.log("cookie already set")

  }else{

     res.cookie('cookie', { //!!!LINE 10!!!

       data: "data..."

     }, {expires: farFuture})

  }



  res.redirect('http://someurl:3000');

  return res.end()

}));

node.js express cookies callback response

asked Jan 2 at 15:14

Gery D

asked Jan 2 at 15:14

Gery D

asked Jan 2 at 15:14

Gery D

asked Jan 2 at 15:14

Gery D

asked Jan 2 at 15:14

Gery D

return at redirect ?

– feiiiiii
Jan 2 at 16:27

Do you mean return res.redirect('http://someurl:3000')? I tried that, didnt work

– Gery D
Jan 2 at 19:49

add a comment |

return at redirect ?

– feiiiiii
Jan 2 at 16:27

Do you mean return res.redirect('http://someurl:3000')? I tried that, didnt work

– Gery D
Jan 2 at 19:49

return at redirect ?

– feiiiiii
Jan 2 at 16:27

Do you mean return res.redirect('http://someurl:3000')? I tried that, didnt work

– Gery D
Jan 2 at 19:49

add a comment |

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