How to use fetch API In Javascript
The fetch API provides a native browser API for making HTTP requests. This approach involves using the fetch API to make asynchronous requests and handle responses with promises.
Syntax:
function makeRequest(url) {
return fetch(url).then(response => response.json());
}
Example: This example implements the above mentioned approach
// Define a function to make a request using the fetch API
function makeRequest(url) {
return fetch(url).then(response => response.json());
}
// Example usage
makeRequest('https://jsonplaceholder.typicode.com/posts/1')
.then(data => {
console.log('Data:', data);
})
.catch(error => {
console.error('Error:', error);
});
Output:
By following these steps and approaches, you can effectively use native JavaScript promises in Postman to make asynchronous requests and handle responses in your API testing workflows.
How to use Native JavaScript Promises in Postman ?
Postman is a popular tool used by developers for testing APIs. While Postman primarily offers a graphical user interface (GUI) for making HTTP requests, it also supports scripting capabilities using JavaScript. One common use case for scripting in Postman is making asynchronous requests and handling responses using promises.
We will discuss the different approaches to using native JavaScript promises in Postman.
Table of Content
- Using pm.sendRequest and Promise constructor
- Using axios Library
- Using fetch API