File upload in Vue

FileUpload.vue

<template>
    <input type="file" @change="processFile($event)">
</template>

<script>
    export default {
        data(){
            return {
                file: null,
            }
        },
        methods: {
          processFile(event) {
            this.form = event.target.files[0];
            this.save();
          },
          save(){
              var self = this;
              var formData = new FormData();
              formData.append('file', this.file);
                  axios.post('/test',
                      formData, {
                        headers: {
                          'Content-Type': 'multipart/form-data'
                        }
                  }).then(function (response) {
                      // handle success
                      console.log(response);
                  })
                  .catch(function (error) {
                      // handle error
                      console.log(error);
                  })
          }
        }
    }
</script>