Function addEventMember

app/core/store/modules/events.js:150–152

({ commit }, { eventId, member } = {})

      return await updateEvent(event._id, event)
    },
    async addEventMember ({ commit }, { eventId, member } = {}) {
      return await postEventMember(eventId, member)
    },
    async editEventMember ({ commit }, { eventId, member } = {}) {
      return await putEventMember(eventId, member)
    },