I have a component that works perfectly with asyncData(), but i want to use fetch() instead. The problem is that when using fetch method, 'car' property is never updated. Am i missing something?
Doesn't work:
data() {
return {
car: null,
}
},
async fetch({ $axios, route }) {
this.car = await $axios.$get('/cars/' + route.params.id)
},
Works perfectly:
data() {
return {
car: null,
}
},
async asyncData({ $axios, route }) {
const response = await $axios.$get('/cars/' + route.params.id)
return { car: response.data }
},
If you use the fetch hook with something like fetch({ ... }), you'll be using the old fetch() hook.
If you want it to work, try out rather
async fetch() {
this.car = await this.$axios.$get(`/cars/${this.$route.params.id}`)
},
As confirmed in this github issue.
Related
I've created a simple CRUD with Nuxt. Data is provided by Lumen. I got a problem with the DELETE, data is deleted but Nuxt does not redirect to the other page.
Here is my script:
<script>
export default {
name: 'EmployeePage',
data() {
return {
fields: ['name','email','image','address'],
emplyees:[],
}
},
mounted() {
this.$axios.get('/employee').then(response => {
this.pegawais = response.data.data
}).catch(error => {
console.log(error.response.data)
})
},
methods: {
async delete(id) {
await this.$axios.delete(`/employee/${id}`).then(response => {
this.$router.push({ name: 'employee' }) <-----this redirect not working
})
}
}
}
</script>
I want Nuxt to redirect to the employee page that display all the data after the deletion.
You should not mix async/await and .then. Use the first approach, that way you will not have the .then callback hell and it will be cleaner overall.
Like this
<script>
export default {
name: 'EmployeePage',
data() {
return {
fields: ['name', 'email', 'image', 'address'],
emplyees: [],
}
},
async mounted() {
try {
const response = await this.$axios.get('/employee')
this.pegawais = response.data.data
} catch (error) {
console.log(error.response.data)
}
},
methods: {
async delete(id) {
await this.$axios.delete(`/employee/${id}`)
await this.$router.push({ name: 'employee' })
},
},
}
</script>
await this.$router.push does not require an await but it's a Promise too, so I'm writing it like that in case you need to call something else afterwards.
this.$axios.$get('/employee') can also be used if you want to remove a .data aka this.pegawais = response.data as shown here.
I'm trying to nuxt-contnt inside a component it works well in page with asyncData but not working inside the component
this works fine :
export default {
async asyncData({ $content }) {
const page = await $content('hello').fetch()
return {
page,
}
},
}
but this is not working :
export default {
data() {
return {
content: [],
}
},
async fetch({ $content }) {
this.content = await $content('hello').fetch()
},
}
fetch doesn't have any parameters but has access to this, so it should be
async fetch() {
this.content = await this.$content('hello').fetch()
}
https://nuxtjs.org/docs/features/data-fetching/
I have Vuex Store that will look like this
const config = {
featureA: { isEnabled: true, maxUser: 2 },
featureB: { isEnabled: false, maxData: 5 },
}
const actions = {
getDataCompany(context, payload) {
return new Promise(async (resolve, reject) => {
try {
const result = await firebase.firestore().collection(payload.collection).doc(payload.companyId).get()
if (result) {
if (payload.isLogin) await context.commit('setConfig', result.data())
return resolve(result.data())
}
reject(new Error('Fail To Load'))
} catch (e) {
reject(new Error('Connection Error'))
}
})
}
}
const mutations = {
setConfig(state, payload) {
state.config = payload
}
}
const getters = {
getData: ({ config }) => (feature, key) => {
const state = config
if (state) if (state[feature]) if (state[feature][key]) return state[feature][key]
return null
}
}
export default new Vuex.Store({
state: { config },
actions: { ...actions },
mutations: { ...mutations },
getters: { ...getters }
})
It's working fine with this method to get the data
computed: {
featureAEnabled() {
return this.$store.getters.getData('featureA', 'isEnabled')
},
}
But I have a problem when the data is change, the value is not update in component, and now I want to use mapGetters because it say can detect changes, But I have problem with the documentation and cannot find how to pass params here,
import { mapGetters } from 'vuex'
computed: {
...mapGetters({
featureAEnabled: 'getData'
})
}
I'am calling the action from here
async beforeMount() {
await this.$store.dispatch('getDataCompany', {collection: 'faturelsit', companyId: 'asep', isLogin: true})
}
And try to detect change in here
mounted() {
if (this.featureAEnabled) console.log('feature enabled')
}
The value change is not detected, and need to refresh twice before the changes is implemented in component
My main target is to detect if there any data change in Vuex and make action in component,
nevermind just working with watch without mapgetter,
I just realize that computed cannot re-run the mounted, so I make method that will called when the variable change in watch. thank you.
The main purpose is fulfilled, but the mapgetter with params is still not answered. so if anyone want to answer please share the way to use mapgetter with params.
You could try to use get and set methods for your computed property.
Example:
computed: {
featureAEnabled: {
get() {
return this.$store.getters.getData('featureA', 'isEnabled')
},
set(value) {
...update featureEnabled property in vuex store
}
},
}
My goal is to pass a getter object inside asyncData, because I need to access the state to pass data to axios
Code example
export default {
async asyncData() {
let result = await $axios.$post('/api/test', { data: this.totalPrice })
},
computed: {
...mapGetters(["totalPrice"])
}
}
As you can see I want to access getter object in asyncData However I got
As indicated in the documentation...
Warning: You don't have access to the component instance through this inside asyncData because it is called before initiating the component.
Instead, use the context object provided
async asyncData ({ store }) {
const body = { data: store.getters.totalPrice }
const { data } = await $axios.$post('/api/test', body)
return data
}
Methods should be placed into methods to have the vue context:
export default {
methods : {
async asyncData() {
let result = await $axios.$post('/api/test', { data: this.totalPrice })
}
},
computed: {
...mapGetters(["totalPrice"])
}
}
If you want to do it onload use mounted (https://v2.vuejs.org/v2/guide/instance.html#Lifecycle-Diagram)
export default {
async mounted() {
let result = await $axios.$post('/api/test', { data: this.totalPrice })
},
computed: {
...mapGetters(["totalPrice"])
}
}
I use axios to fetch my JSON file en vuex for using the fetched data over multiple components.
The thing is that my page renders before all data is loaded.
The following works because I delayed the rendering by 2 seconds, without this timeout it would result in an error.
I would like to do this the proper way but am not sure how to do it.
STORE.JS
Vue.use(Vuex);
const store = new Vuex.Store({
state: {
poss: null
},
getters: {
NAME: state => {
return state.name
},
POSS: state => {
return state.poss
}
},
mutations: {
SET_POSS : (state,payload) => {
state.poss = payload
},
ADD_POSS : (state,payload) => {
state.poss.push(payload)
},
},
actions:{
GET_POSS : async (context,payload) => {
let { data } = await axios.get("json/poss.json")
context.commit('SET_POSS',data)
},
SAVE_POSS : async (context,payload) => {
let { data } = await axios.post("json/poss.json")
context.commit('ADD_POSS',payload)
}
}
});
COMPONENT.VUE
module.exports = {
mounted:function(){
var self = this;
setTimeout(function () {
self.mkPageload()
}, 2000);
},
methods: {
mkPageload: function(){
let positions = this.$store.getters.POSS.pos
Object.keys(positions).forEach(key => {
// rendering
}
}
}
}
The desired result is that the page is only rendered after all data from the JSON file has been loaded.
There are several ways to solve this.
You could use wait / async in your component.
async mounted () {
await userStore.getAll()
// access getter and render
},
Your could watch vuex variable like (could be done without async but I like to add them)
async mounted () {
await userStore.getAll()
},
computed: {
...mapGetters('users')
},
watch: {
users(newValue, oldValue) {
....
// render
}
}
dont'forget to import the mapGetters: https://vuex.vuejs.org/guide/getters.html