Obtain information stored locally when an internet connection is established

I'm currently facing an issue with my Local Storage data retrieval process in Vuejs while being online. My ToDo app setup consists of Vuejs, Laravel, and MySQL. When the internet connection is available, I store data in localStorage. The ToDo app has been designed to include offline functionalities such as adding, deleting, and editing todo items. I am encountering difficulties in transferring local storage data to the MySQL Database.

updateAllTodos() {
  let data = { todos: this.todos };
  if (navigator.onLine) {
    axios.post(this.api + "/update_all", data).then((res) => {
      localStorage.setItem("todos", JSON.stringify(this.todos));
    });
  } else {
    JSON.parse(localStorage.getItem("todos", JSON.stringify(this.todos)));
  }
},

Can anyone advise me on how to successfully post the localStorage data when there is an Internet connection?

javascriptmysqlvue.jsvuejs2

Answer №1

To update the online status, you can utilize an event listener and a variable to track true/false values. Subsequently, you can monitor the data property and take actions accordingly.

  data() {
    return {
      isOnLine:navigator.onLine
    }
  },
  mounted() {
     window.addEventListener('online', () => {this.isOnLine = true});
     window.addEventListener('offline', () => {this.isOnLine = false});
  },
  watch: {
   onLine: function (val) {
      if(this.isOnLine){
        // perform axios call here
      }
    },
  }

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