Created
February 12, 2019 21:31
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XMLHttpRequest RESTful (GET, POST, PUT, DELETE)
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// Get all users | |
var url = "http://localhost:8080/api/v1/users"; | |
var xhr = new XMLHttpRequest() | |
xhr.open('GET', url, true) | |
xhr.onload = function () { | |
var users = JSON.parse(xhr.responseText); | |
if (xhr.readyState == 4 && xhr.status == "200") { | |
console.table(users); | |
} else { | |
console.error(users); | |
} | |
} | |
xhr.send(null); | |
// Get a user | |
var url = "http://localhost:8080/api/v1/users"; | |
var xhr = new XMLHttpRequest() | |
xhr.open('GET', url+'/1', true) | |
xhr.onload = function () { | |
var users = JSON.parse(xhr.responseText); | |
if (xhr.readyState == 4 && xhr.status == "200") { | |
console.table(users); | |
} else { | |
console.error(users); | |
} | |
} | |
xhr.send(null); | |
// Post a user | |
var url = "http://localhost:8080/api/v1/users"; | |
var data = {}; | |
data.firstname = "John"; | |
data.lastname = "Snow"; | |
var json = JSON.stringify(data); | |
var xhr = new XMLHttpRequest(); | |
xhr.open("POST", url, true); | |
xhr.setRequestHeader('Content-type','application/json; charset=utf-8'); | |
xhr.onload = function () { | |
var users = JSON.parse(xhr.responseText); | |
if (xhr.readyState == 4 && xhr.status == "201") { | |
console.table(users); | |
} else { | |
console.error(users); | |
} | |
} | |
xhr.send(json); | |
// Update a user | |
var url = "http://localhost:8080/api/v1/users"; | |
var data = {}; | |
data.firstname = "John2"; | |
data.lastname = "Snow2"; | |
var json = JSON.stringify(data); | |
var xhr = new XMLHttpRequest(); | |
xhr.open("PUT", url+'/12', true); | |
xhr.setRequestHeader('Content-type','application/json; charset=utf-8'); | |
xhr.onload = function () { | |
var users = JSON.parse(xhr.responseText); | |
if (xhr.readyState == 4 && xhr.status == "200") { | |
console.table(users); | |
} else { | |
console.error(users); | |
} | |
} | |
xhr.send(json); | |
// Delete a user | |
var url = "http://localhost:8080/api/v1/users"; | |
var xhr = new XMLHttpRequest(); | |
xhr.open("DELETE", url+'/12', true); | |
xhr.onload = function () { | |
var users = JSON.parse(xhr.responseText); | |
if (xhr.readyState == 4 && xhr.status == "200") { | |
console.table(users); | |
} else { | |
console.error(users); | |
} | |
} | |
xhr.send(null); |
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