Develop Reference

Pinia|Vue3 I can't access the property of the object that returned from the Pinia action

first of all I am using the Mockjs to simulate the backend data:
{
url: "/mockApi/system",
method: "get",
timeout: 500,
statusCode: 200,
response: { //
status: 200,
message: 'ok',
data: {
'onlineStatus|3': [{
'statusId': '#integer(1,3)',
'onlineStatusText': '#ctitle(3)',
'onlineStatusIcon': Random.image('20*20'),
'createTime': '#datetime'
}],
'websiteInfo': [{
'id|+1': 1,
}]
}
}
}
the data structure would be: https://imgur.com/a/7FqvVTK
and I retrieve this mock data in Pinia store:
import axios from "axios"
import { defineStore } from "pinia"
export const useSystem = defineStore('System', {
state: () => {
return {
systemConfig: {
onlineStatus: [],
},
}
},
actions: {
getSystemConfig() {
const axiosInstance = axios.interceptors.request.use(function (config) {
// Do something before request is sent
config.baseURL = '/mockApi'
return config
}, function (error) {
// Do something with request error
return Promise.reject(error);
})
axios.get('/system/').then(res => {
this.systemConfig.onlineStatus = res.data.data.onlineStatus
})
// console.log(res.data.data.onlineStatus)
axios.interceptors.request.eject(axiosInstance)
}
}
})
I use this store in the parent component Profile.vue:
export default {
setup() {
const systemConfigStore = useSystem()
systemConfigStore.getSystemConfig()
const { systemConfig } = storeToRefs(systemConfigStore)
return {
systemConfig,
}
},
computed: {
getUserOnlineStatusIndex() {
return this.userData.onlineStatus//this would be 1-3 int.
},
getUserOnlineStatus() {
return this.systemConfig.onlineStatus
},
showUserOnlineStatusText() {
return this.getUserOnlineStatus[this.getUserOnlineStatusIndex - 1]
},
},
components: {UserOnlineStatus }
}
template in Profile.vue I import the child component userOnlineStatus.vue
<UserOnlineStatus :userCurrentOnlineStatus="userData.onlineStatus">
{{ showUserOnlineStatusText }}
</UserOnlineStatus>
here is what I have got https://imgur.com/fq33uL8
but I only want to get the onlineStatusText property of the returned object, so I change the computed code in the parent component Profile.vue:
export default {
setup() {
const systemConfigStore = useSystem()
systemConfigStore.getSystemConfig()
const { systemConfig } = storeToRefs(systemConfigStore)
return {
systemConfig,
}
},
computed: {
getUserOnlineStatusIndex() {
return this.userData.onlineStatus//this would be 1-3 int.
},
getUserOnlineStatus() {
return this.systemConfig.onlineStatus
},
showUserOnlineStatusText() {
return this.getUserOnlineStatus[this.getUserOnlineStatusIndex - 1]['onlineStatusText']//👀I chage it here!
},
},
components: {UserOnlineStatus }
}
but I will get the error in the console and it doesn't work:
https://imgur.com/Gb68Slk
what should I do if I just want to display the specific propery of the retrived data?
I am out of my wits...
I have tried move the store function to the child components, but get the same result.
and I google this issue for two days, nothing found.
Maybe it's because of I was trying to read the value that the Profile.vue hasn't retrieved yet?
in this case, how could I make sure that I have got all the value ready before the page rendered in vue3? Or can I watch this specific property changed, then go on rendering the page?

every UX that has data is coming from remote source (async data) should has spinner or skeleton.
you can use the optional chaining for safe access (if no time to await):
return this.getUserOnlineStatus?.[this.getUserOnlineStatusIndex - 1]?.['onlineStatusText']

Using Axios instead of fetch for http get requests with Vue App

The following vue app should get some data from a firebase instance using the fetch method and display the data on the page.
UserExperiences.vue
<script>
import SurveyResult from './SurveyResult.vue';
//import axios from 'axios';
export default {
components: {
SurveyResult,
},
data() {
return{
results: []
}
},
methods:{
loadExperiences() {
fetch('https://***.firebaseio.com/surveys.json')
//axios.get('https://***.firebaseio.com/surveys.json')
.then((response) => {
if(response.ok) {
return response.json();
}
})
.then((data) => {
const results = [];
for (const id in data) {
results.push({
id: id,
name: data[id].name,
rating: data[id].rating
});
}
this.results = results;
});
},
},
};
// mounted(){
// axios.get('https://***.firebaseio.com/surveys.json').then(response => {
// this.results = response.data;
// })
// },
</script>
SurveyResult.vue
<template>
<li>
<p>
<span class="highlight">{{ name }}</span> rated the learning experience
<span :class="ratingClass">{{ rating }}</span>.
</p>
</li>
</template>
<script>
export default {
props: ['name', 'rating'],
computed: {
ratingClass() {
return 'highlight rating--' + this.rating;
},
},
};
</script>
The data renders on the webpage correctly on the webpage using the fetch method. Is there a way to use axios.get instead? I've tried using the mounted vue property and it gets the data to appear on a blank screen in a json format, but I want the data to render on the webpage with the stylings and other vue components together.
This is what the page should look like for context:

As long as you do the same transformation of the result (your results.push({ ... }) part), you should get the same result.
You can simplify it like this
axios.get("https://***.firebaseio.com/surveys.json")
.then(({ data }) => {
this.results = Object.entries(data).map(([ id, { name, rating } ]) =>
({ id, name, rating }));
});

Keep getting [Object Object] in hybrid app Javascript

I'm building a hybrid app using Nuxt JS, Cordova and Cordova Native Storage (essentially localstorage).
I'm saving an object to native storage, and retrieving it on page load within mounted() however, I keep getting the following error no matter what I try to access the object data:
[Object Object]
My JS in the component which is loaded on every page is:
import { mapState } from 'vuex';
export default {
mounted () {
document.addEventListener("deviceready", this.getNativeStorage(), false)
},
methods: {
getNativeStorage() {
window.NativeStorage.getItem("beacon_native_storage", (value) => {
var parseObj = JSON.parse(value)
alert(parseObj)
alert(parseObj.localStorage)
}, (error) => {
alert(`Error: ${error.code}-${error.exception}`)
});
},
refreshNativeStorage(currentState) {
window.NativeStorage.initWithSuiteName("beacon");
window.NativeStorage.setItem("beacon_native_storage", JSON.stringify(currentState), () => {
alert('Stored currentState')
}, (error) => {
alert(`Error: ${error.code}`)
});
}
},
computed: {
state () {
return this.$store.state
}
},
watch: {
state: {
handler: function (val, Oldval) {
setTimeout(function () {
this.refreshNativeStorage(this.state)
}.bind(this), 10)
},
deep: true
}
}
}
And the object from Vuex looks like:
export const state = () => ({
pageTitle: 'App name',
dataUrls: [],
intervalData: [],
settings: [],
experimentalFeatures: [],
customAlertSeen: false,
user: null,
account: null,
payloadOutput: null
})
Every time the getItem runs, alert(parseObj) always returns [Object Object] rather than for instance, the data. And if I try returningparseObj.localStorage.pageTitlewhich is clearly defined instore/localStorage.jsit returnsundefined`
Where am I going wrong here?

So, what happens, is that localStorage stores STRINGS, not objects.
When you save your item to localStorage, first convert it to a string, then parse it from a string when you retrieve it.
localStorage.setItem('a', {b:'c',d:'e'})
localStorage.getItem('a') // "[object Object]" <- note the quotes!
localStorage.setItem('a', JSON.stringify({b:'c',d:'e'}))
JSON.parse(localStorage.getItem('a')) // {b: "c", d: "e"}

Vuex how to pass state/getter in data prop

I retrieved my data from database using axios under my vuex
const state = {
giveaways: null
}
const actions = {
getGiveAways : ({commit}) =>{
axios({
url : '/prod/api/thresholds_settings',
method: 'post',
data : {
},
config: 'JOSN'
})
.then(response=>{
if(response.status == 200){
//console.log(response.data.total_giveaways);
commit('SET_GIVEAWAYS', response.data.total_giveaways)
}
})
.catch(error=>{
if(error.response){
console.log('something happened')
}
});
}
}
const mutations = {
SET_GIVEAWAYS : (state, obj)=>{
state.giveaways = obj
}
}
const getters = {
doneGiveAways(state){
return state.giveaways
}
}
In my Dashboard.vue I have
import {mapState,mapGetters} from 'vuex'
export default{
data: () => ({
cards: [],
giveaways: ''
}),
computed:{
...mapState({
Giveaway: state => state.Threshold.giveaways
}),
doneGiveAways(){
return this.$store.getters.doneGiveAways
}
},
ready(){
//giveaways: this.Giveaways
//console.log(this.Giveaways);
},
created(){
const self = this
this.cards[0].result_val = 2
this.cards[2].result_val = 2;
},
mounted(){
this.$store.dispatch('getGiveAways');
console.log(this.giveaways);
}
}
My problem is I need to pass the value from the mapState Giveaway to my returning data giveaways: '' so when page fires I can get the response value using this.giveaways. If I just call {{ Giveaway }} in my html it shows the value. But I need to make something like this.giveaways = this.$store.state.Thresholds.giveaways

I would use Stephan-v's recommendation and delete the local copy of giveaways. But I don't know what your specific reason is for declaring an extra copy of giveaways, so here is a solution that will work:
In your Dashboard.vue add:
export default {
...
watch: {
Giveaway(value) {
this.giveaways = value
}
},
...
}

Just delete the giveaways property from your data Object and rename the computed doneGiveAways to giveaways and you are done.
There is no need for a local component giveaway data property in this scenario.

normalizr v3 and JSON api

I want to normalise the responses I receive from an API. A typical response could look something like this:
// Get all projects
{data:[
{
id: 1
...
team:{
data: {
id:15
...
}
}
},
{
id:2,
....
},
{
id:3,
...
}
]}
How do I write my schemas so that it removes the 'data' container?
Currently, my schema looks like:
export const project = new schema.Entity('projects', {
team: team, // team omitted
},
{
processStrategy: (value, parent, key) => parent.data
}
)
export const arrayOfProjects = new schema.Array(project)
And I am using it like:
const normalizedProjects = normalize(jsonResponse, arrayOfProjects)
normalizedProjects then looks like this:
{
entities:{
projects:{
undefined:{
0:{
team:{
data:{
id:15,
...
}
}
},
1:{...},
2:{...}.
...
50:{...},
}
}
},
result:[] // length is 0
}
I'm not sure why the list of projects is contained in 'undefined', either?

I also use json_api schema.
How about like this?
const projectsSchema = new schema.Entity('projects', {}, {
processStrategy: processStrategy
});
export const processStrategy = (value, parent, key) => {
const attr = value.attributes;
delete value.attributes;
return { ...value, ...attr };
};
export const fetchProjectsSchema = {
data: [projectsSchema]
}

Each of your entity schema that you want to have the data omitted (or anything else fundamentalyl changed) needs to include a processStrategy that you write to remove or change any data. (see more examples in the tests)