Created
June 11, 2020 16:32
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const fetch = require('node-fetch') | |
/********************************************************************************** | |
OPCION TRADICIONAL | |
**********************************************************************************/ | |
function getNombre(username){ | |
const url = `https://api.github.com/users/${username}` | |
fetch(url) | |
.then( res => res.json() ) | |
.then( json => { console.log(json.name) }) | |
// .error ( err => { console.log('error: ', err) }) | |
} | |
// Llamada a la funcion | |
// getNombre('mortegac') | |
/********************************************************************************** | |
OPCION USANDO ASYNC AWAIT | |
async => Cada vez que usamos esta palabra, javascript retorna una promesa | |
await => espera que se ejecute la promesa | |
**********************************************************************************/ | |
//async function getNombreAsync(username){ | |
const getNombreAsync= async (username)=> { | |
const url = `https://api.github.com/users/${username}` | |
const respuesta = await fetch(url) | |
const json = await respuesta.json() | |
if(respuesta.status !== 200) | |
throw Error('El usuario no existe') | |
return json | |
} | |
///////////////////////////////////////////////////////// | |
//FORMAS DE LLAMAR LA FUNCION | |
///////////////////////////////////////////////////////// | |
// OPCION -1 Devuelve una promesa | |
// getNombreAsync('mortegac') | |
// .then((nombre) => console.log(nombre)) | |
// .catch((e) => console.log(`Error: ${e}`)) | |
// OPCION -2 No devuelve una promesa, se procesa en forma sincrona | |
//(async function(){ | |
(async ()=> { | |
try{ | |
const nombre = await getNombreAsync('mortegac') | |
console.log(nombre) | |
}catch(e){ | |
console.log(`Error: ${e}`) | |
} | |
})() |
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