axiosPost.js

 methods: {
                api(lat, lng, km){
                    this.loading = true;
                    var payload = this.payAuth;
                    var token = "";

                    var urlAuth = 'http://localhost:49921/token';

                    return new Promise((resolve, reject) => {
                        axios.post(urlAuth, JSON.stringify(payload), 
                            {withCredentials: true, headers: {'Content-Type': 'application/x-www-form-urlencoded'}}).then(response => {
                                resolve(response.data)
                        }, error => {
                            reject(error);
                        })
                    })
                },
            },