Receiving Junk Characters when messages are consumed using kafka-node

Question

I Am using the npm package kafka-node version 3.0.1.

However, am receiving junk characters in the message -

""M`@$�q��1��N$907959dc-30e9-4e5c-af44-09a4f9062fe1�{"header":{"eventName":"myevent","producer"�'INE",DETECTED"}}"

Any help is appreciated.

Answer 1

To remove "junk" characters (unicode unprintable characters) just use replace.

const str = "M`@$�q��1��N$907959dc-30e9-4e5c-af44-09a4f9062fe1�";
const res = str.replace(/�/g, "");
console.log(res);

You could alternatively check the character code using filter and join.

const str = "M`@$�q��1��N$907959dc-30e9-4e5c-af44-09a4f9062fe1�";
const res = [...str].filter(e => e.charCodeAt(0) != 65533).join("");
console.log(res);