Return a string in a HTTP response as JSON using express JS

Question

I want to return a string in a HTTP response as JSON using express JS. I am trying this but I am getting error. What am I doing wrong?

msg = '{"foo": "bar"}';
msgJSON = JSON.parse(msg);
res.status(200).send(msgJSON);

I need to be a string because it is generated concatenating key-value pairs

do you get that error with the example code you posted, or just with the programmatically built string? I see nothing wrong with what you've posted aside from some extra steps you don't need. — Dan Crews
– Dan Crews, Commented May 9, 2018 at 21:30
@DanCrews Indeed I was getting the error with the programatically built string. I was doing it wrong but thanks to your answer I managed to solve the issue. — v8rs
– v8rs, Commented May 9, 2018 at 21:51

Dan Crews · Accepted Answer · 2018-05-09 21:29:16Z

1

Based off your edit, you don't need to parse the object. You can just send the data:

res.set('content-type', 'application/json');
res.status(200).send(msg);

edited May 9, 2018 at 21:29

answered May 9, 2018 at 21:25

Dan Crews

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2 Comments

v8rs Over a year ago

I forgot to add ' ' in order to be a string, sorry. I updated the question

v8rs Over a year ago

Thanks, it works. Just by the way, why if I use res.status(200).json(msg) instead of res.status(200).send(msg) the response is between " ": "response"

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