Vue.js – Ep. 11 Lifecycle hooks & making API calls
Vue.js is a popular JavaScript framework for building user interfaces and single-page applications. In this episode, we will talk about Vue.js lifecycle hooks and making API calls.
Lifecycle hooks
Lifecycle hooks are special methods that allow you to hook into the lifecycle of a Vue instance. These hooks are called at different stages of the instance’s lifecycle, such as when it is created, mounted, updated, or destroyed. This allows you to perform custom logic at these specific points in the lifecycle.
Some of the most commonly used lifecycle hooks in Vue.js are beforeCreate, created, beforeMount, mounted, beforeUpdate, updated, beforeDestroy, and destroyed. You can use these hooks to perform tasks like initializing data, performing API calls, or cleaning up resources when the instance is destroyed.
Making API calls
Vue.js makes it easy to make API calls and fetch data from a server using its built-in methods. You can use the created lifecycle hook to make an API call when the component is created, and then use the fetched data to update the component’s state.
For example, you can use the fetch method of the window object to make a GET request to a server and fetch data:
created() {
window.fetch('https://api.example.com/data')
.then(response => response.json())
.then(data => {
this.data = data;
});
}
In this example, we use the fetch method to make a GET request to https://api.example.com/data and then use the fetched data to update the component’s data property.
By using lifecycle hooks and making API calls, you can create dynamic and interactive applications with Vue.js that fetch and display data from a server.
