I have been using axios to make API calls using the following pattern:

axios.get('/user?ID=12345')
  .then(function (response) {
    // handle success
    console.log(response);
  })
  .catch(function (error) {
    // handle error
    console.log(error);
  })
  .then(function () {
    // always executed
  });

In a codebase I am working on, the pattern for API calls looks like this:

export async function getUser(...) { 
   return new Promise((resolve, reject) => {
      customAxios.get("...", { params })
      .then(response => ....).then(resolve).catch(reject))
      .catch(error => 
         return new reject(...));
  });
}

Where customAxios looks like:

const customAxios = axios.create({...});
customAxios.interceptors.response.use(.....);

I haven't used Promises before, but what is the point of wrapping the axios call in a promise as oppose to style the axios documention has?