title: #DiscordWebhook Error 'Bad request signature' trying to connect on URL interaction endpoint
body: <p>I'm developing an bot application in Javascript that uses a Discord webhook to return API data after to trigg a slash command. I'm basing myself on an example on the Discord Developer website (<a href="https://discord.com/developers/docs/getting-started" rel="nofollow noreferrer">https://discord.com/developers/docs/getting-started</a>), and its GitHub repository (<a href="https://github.com/discord/discord-example-app" rel="nofollow noreferrer">https://github.com/discord/discord-example-app</a>).
  I just need some  functions and modules from the discord example, which will be used in the implementation, and today the app should return a simple text message. If it works, I'll implementate a fetch data for API.
  To testing if it works, I start the app.js script, that is an Express app, and I use an URL generated by ngrok to set the endpoint interactions URL in settings of my Discord application. However, I can't set this URL, and my application crashes, givin an <strong>bad request</strong> error, associated with a <strong>401 response status</strong>. Probably is an error of mine that I can't find, the discord's example works fine.  In the utils.js script, there is a function that uses the <strong>verifyKey</strong> function, which belongs to the <strong>discord-interactions</strong> package . I think the problem is there. Below is the link to my repository on GitHub:
  <a href="https://github.com/wiliansanello/te-quotations-by-discord/tree/master/poc-discord" rel="nofollow noreferrer">https://github.com/wiliansanello/te-quotations-by-discord/tree/master/poc-discord</a>
  Somebody can help me to fix this error, please? Thanks!</p>