How to handle HTTP errors?

import { DiscordAPIError, RESTJSONErrorCodes } from "discord.js";

try {
} catch (err) {
  // Handle HTTP errors
  if (err instanceof DiscordAPIError) {
    // Handle here
  }

  // JSON error codes
  if (err.code === RESTJSONErrorCodes.Unauthorized) {
    // Handle here
  }
}

import { DiscordAPIError, RESTJSONErrorCodes } from "discord.js";

try {
} catch (err) {
  // Handle HTTP errors
  if (err instanceof DiscordAPIError) {
    // Handle here
  }

  // JSON error codes
  if (err.code === RESTJSONErrorCodes.Unauthorized) {
    // Handle here
  }
}