How to handle async/await in Vue
Łukasz Holeczek
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Handling asynchronous operations with clean, readable code is essential for Vue.js applications that interact with APIs and perform time-consuming tasks. As the creator of CoreUI with over 25 years of development experience building Vue applications since 2014, I’ve used async/await extensively in our component methods for data fetching and form submissions. The most effective approach is using async/await in Vue methods and computed properties with proper error handling and loading states. This method provides synchronous-looking code that’s easier to read and debug while maintaining full control over asynchronous operations.
Use async/await in Vue methods with try-catch blocks for clean asynchronous code and error handling.
export default {
data() {
return {
user: null,
loading: false,
error: null
}
},
methods: {
async fetchUserData(userId) {
this.loading = true
this.error = null
try {
const response = await fetch(`/api/users/${userId}`)
if (!response.ok) throw new Error('Failed to fetch user')
this.user = await response.json()
} catch (error) {
this.error = error.message
console.error('Error fetching user:', error)
} finally {
this.loading = false
}
},
async handleSubmit() {
try {
await this.fetchUserData(123)
this.$router.push('/dashboard')
} catch (error) {
// Error already handled in fetchUserData
}
}
}
}
Vue methods can be declared as async functions, allowing you to use await for Promise-based operations like API calls. The try-catch-finally pattern provides comprehensive error handling while maintaining clean, linear code flow. You can await multiple operations sequentially or use Promise.all() for concurrent operations. This approach works in all Vue lifecycle hooks, computed properties (when returning Promises), and custom methods, making asynchronous code predictable and maintainable.
Best Practice Note:
This is the async pattern we use throughout CoreUI Vue components for reliable asynchronous operations with proper error boundaries. Always wrap async operations in try-catch blocks and provide user feedback through loading states and error messages for better user experience.
