Can you explain the significance behind the error message "RangeError: Invalid status code: 0"?

Currently, I'm trying to understand the workings of express and have come up with this get method:

app.get('/myendpoint', function(req, res) {
    var js = JSON.parse ({code: 'success', message:'Valid'});
    res.status(200).json(js);
});

However, whenever this endpoint is triggered, an error occurs:

_http_server.js:192
    throw new RangeError(`Invalid status code: ${statusCode}`);

Interestingly, if I disable the JSON.parse statement and use valid json instead of "js", there are no issues at all. How would you suggest resolving this problem?

Answer №1

There is no need to use JSON.parse() in this particular scenario. The function call was made incorrectly because the function requires a string input, not an object.

The following code should work perfectly:

app.get('/myendpoint', function(req, res) {
    res.status(200).json({code: 'success', message:'Valid'});
});

For more information, refer to the Express documentation.

Answer №2

I finally cracked the code:

res.status(200).send(js);

Success!

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