在使用具有反应性 url - Vue.js 3 的 axios 操作结果之前,如何等待异步调用
How can I wait for asynchronous call before manipulating results using axios with reactive url - Vue.js 3
我有以下获取数据的代码。 urls 应该是反应式的,如果是改变一个新的调用完成。:
const apiClient = axios.create({
baseURL: 'https://vue-http-demo-some-number.firebaseio.com',
withCredentials: false,
headers: {
Accept: 'application/json',
'Content-Type': 'application-json'
}
});
function useFetch(getRelativeURL) {
const data = ref(null);
const error = ref(null);
const isPending = ref(true);
watchEffect(() => {
apiClient.get(getRelativeURL())
.then(response => {
data.value = response.data;
})
.catch(err => {
error.value = err;
})
.finally(() => {
isPending.value = false;
});
});
return {
data,
error,
isPending
}
}
和通话:
setup() {
const books = [];
const {data, error, isPending} = useFetch(() => '/books.json');
for (const key in data.value) {
for (const u in data.value[key]) {
const book = {
id: key,
title: data.value[key][u].title,
description: data.value[key][u].description,
};
books.push(book);
}
}
return {
books,
error,
isPending
}
}
我的问题是来自 userFecth
的响应出现延迟,并且在我有非空数据之前就提取了书籍。我有什么选择可以保持 url 反应性和更新书籍。
你可以看到来自组合函数的 data
:
import {watch} from 'vue'
setup() {
const books = [];
const {data, error, isPending} = useFetch(() => '/books.json');
watch(()=>data,()=>{
for (const key in data.value) {
for (const u in data.value[key]) {
const book = {
id: key,
title: data.value[key][u].title,
description: data.value[key][u].description,
};
books.push(book);
}
}
}
,{
deep:true
})
return {
books,
error,
isPending
}
}
我有以下获取数据的代码。 urls 应该是反应式的,如果是改变一个新的调用完成。:
const apiClient = axios.create({
baseURL: 'https://vue-http-demo-some-number.firebaseio.com',
withCredentials: false,
headers: {
Accept: 'application/json',
'Content-Type': 'application-json'
}
});
function useFetch(getRelativeURL) {
const data = ref(null);
const error = ref(null);
const isPending = ref(true);
watchEffect(() => {
apiClient.get(getRelativeURL())
.then(response => {
data.value = response.data;
})
.catch(err => {
error.value = err;
})
.finally(() => {
isPending.value = false;
});
});
return {
data,
error,
isPending
}
}
和通话:
setup() {
const books = [];
const {data, error, isPending} = useFetch(() => '/books.json');
for (const key in data.value) {
for (const u in data.value[key]) {
const book = {
id: key,
title: data.value[key][u].title,
description: data.value[key][u].description,
};
books.push(book);
}
}
return {
books,
error,
isPending
}
}
我的问题是来自 userFecth
的响应出现延迟,并且在我有非空数据之前就提取了书籍。我有什么选择可以保持 url 反应性和更新书籍。
你可以看到来自组合函数的 data
:
import {watch} from 'vue'
setup() {
const books = [];
const {data, error, isPending} = useFetch(() => '/books.json');
watch(()=>data,()=>{
for (const key in data.value) {
for (const u in data.value[key]) {
const book = {
id: key,
title: data.value[key][u].title,
description: data.value[key][u].description,
};
books.push(book);
}
}
}
,{
deep:true
})
return {
books,
error,
isPending
}
}