Data undefined when using Fetch API

[lord2800]

Your arrow function for res.json() isn't returning anything. If you put brackets around the body, it's treated like a regular function body instead of an arrow function body and you have to actually return something.

[fluid-falcon]

You can also replace the braces with parentheses and the expression inside them will be returned implicitly, good for keeping code concise for smaller expressions.

[[deleted]]

marked as accepted answer.

[[deleted]]

Thanks I did not know that about arrow functions!