how to use post api with header token in react js code example

Example: send token in axios header

const username = ''
const password = ''

const token = Buffer.from(`${username}:${password}`, 'utf8').toString('base64')

const url = 'https://...'
const data = {
  ...
}

axios.post(url, data, {
  headers: {
    'Authorization': `Basic ${token}`
  },
})