Issue
If no user is found (it's just an example to understand error handling), I want to send a custom message such as
res.status(404).send('no user');
my client never receives that and instead I get:
[AxiosError: Request failed with status code 404]
What am I doing wrong? I cannot find any other solution and have been researching for a while now. Also wonder how I could send a custom status (if no data found it's 404 but what if I want to send 200)? node express
router.get('/getuser', async (req, res) => {
try {
const user = await User.findOne({_id: req.user._id});
if (!user) {
res.status(404).send('no user');
} else {
res.status(200).send(user)
}
} catch(error) {
res.status(500).send(error)
}
});
frontend
const trycatch = async () => {
try {
const response = await axios.get(example.com/trycatch)
return response.data;
} catch (error) {
console.log(error)
}
}
Solution
Responses with a status code of 400 or more are treated as errors by axios. As a consumer, you can only react to that in the catch (error)
clause, for example:
catch (error) {
switch (error.response.status) {
case 404: return "no user"; break;
default: return error.response.data;
}
}
But you can influence which statuses cause errors with the validateStatus
option of the axios request.
Summary: Either you distribute your code between the try
and the catch
block, where the try
block code handles successes (status < 400) and the catch
block handles errors (status ≥ 400). Or you use validateStatus
to change what counts as a success and what counts as an error.
Answered By - Heiko Theißen Answer Checked By - Terry (PHPFixing Volunteer)
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