Node-jsonwebtoken: JsonWebTokenError extends Error class

[Horaddrim]

I'm writing a REST API with JWT authorization, and only want to know, why did you guys don't make JsonWebTokenError function on /lib/JsonWebTokenError.js a class that extends Error class ?
I though that for better 'checking' (maybe not the words), when handling errors with try/catch.

So instead

try{      
 // with the JsonWebTokenError here     
} catch (err) {     
if (err.message === 'jwt malformed') {     
// and handle this..      
}      

becomes this:

try{  
 // with the JsonWebTokenError here  
} catch (err) {  
if (err instanceof JsonWebTokenError) {  
// and handle this..   
}  

or even more specific like:

/ ...   
if (err instanceof MalformedJsonWebToken)  
/ ...     

Thanks in advance :smile:

[ziluvatar]

We do not "extend Error class" but we use Object.create() to achieve the inheritance.

Isn't working for you? You can find the errors in the root of the library:

const jwt = require('jsonwebtoken');
jwt.JsonWebTokenError

To let you do if (err instanceof jwt.JsonWebTokenError) {}

[Horaddrim]

@ziluvatar Thank you man! I wrote this in the "fire" of a sprint, only to know! Thank you for the tip! :+1: :smile: You guys are awesome!