form.js

const { id, ...payload_without_id } = payload;

// use case

updateMilestone({ commit, state, getters }, payload) {

  const { id, ...payload_without_id } = payload;

  const url = `${base_url}api/milestones/${id}/`;

  return axios
      .patch(url, payload_without_id)
      .then(response => {

          let milestone = response.data;

          commit('updateMilestone', milestone);

          return milestone;

      })
      .catch(function (error) {
          console.log("error res -->", error);

          throw error;
      });
},