Service for OAuth class

oauth.service.js

import Http from 'axios'
import API from 'api/routes'  // We create a file to store all the endpoints
export default {
  user : null,
  destroySession(){
    this.user = null
  },
  async currentUser(){
      if(this.user) {
        return this.user
      }
      try{
        let user = await Http.get(API.CURRENT_USER_URL)
        this.user = user;
        return new Promise(resolve => resolve(user))
      }
      catch(error){
        return new Promise(reject => reject(error))
      }
  },
  async attemptLogin(credentials){
    try {
      let response = await Http.post(API.TOKEN_URL, credentials)
      return new Promise(resolve => resolve(response))
    } catch(error){
      return new Promise(reject => reject(error))
    }
  },
  addAuthorizationHeader(header){
    Http.defaults.headers.common['Authorization'] = header
  }
}