client.js

require('dotenv').config()
const axios = require('axios')

const { ISSUER, CLIENT_ID, CLIENT_SECRET, SCOPE } = process.env

const [,, url, method, body] = process.argv
if (!url) {
  console.log('Usage: node client {url} [{method}] [{jsonData}]')
  process.exit(1)
}

const sendAPIRequest = async () => {
  try {
    const auth = await axios({
      url: `${ISSUER}/v1/token`,
      method: 'post',
      auth: {
        username: CLIENT_ID,
        password: CLIENT_SECRET
      },
      params: {
        grant_type: 'client_credentials',
        scope: SCOPE
      }
    })

    const response = await axios({
      url,
      method: method ?? 'get',
      data: (body) ? JSON.parse(body) : null,
      headers: {
        authorization: `${auth.data.token_type} ${auth.data.access_token}`
      }
    })

    console.log(response.data)
  } catch (error) {
    console.log(`Error: ${error.message}`)
  }
}

sendAPIRequest()