Little JS Snippets

fetchingData.js

// Making API call

// Fetch API
fetch('http://example.com/huha.json')
  .then(response => response.json())
  .then(data => console.log(data));


// Example: Get languages from the countries API

const API_URL = 'https://restcountries.eu/rest/v2/all'
fetch(API_URL)
	.then((response) => response.json())
	.then((data) => {
		const langs = []
		for (const country of data) {
			let { languages } = country
			for (const lang of languages) {
				langs.push(lang.name)
			}
		}
		console.log(langs)
		console.log(`Languages of the world:, ${langs.length}`)
	})

//...............................................................................

// Axios

const axios = require('axios');

// Make a request for a user with a given ID
axios.get('/user?ID=12345')
  .then(function (response) {
    // handle success
  })
  .catch(function (error) {
    // handle error
  })
  .then(function () {
    // always executed
  });

// Use with params
axios.get('/user', {
    params: {
      ID: 12345
    }
  })
  .then(function (response) {
    // handle success
  })
  .catch(function (error) {
     // handle error
  })
  .then(function () {
    // always executed
  });  

// use async/await
async function getUser() {
  try {
    const response = await axios.get('/user?ID=12345');
    console.log(response);
  } catch (error) {
    console.error(error);
  }
}