Created
November 16, 2023 14:44
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Fetch / XmlHttpRequest example
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| document.querySelector("form").addEventListener("submit", async (e) => { | |
| e.preventDefault(); | |
| document.querySelector(".loading").style.display = "block"; | |
| const results = document.querySelector("#results"); | |
| results.innerHTML = ""; | |
| let response; | |
| try { | |
| response = await fetch("https://dog.ceo/api/breeds/image/random"); | |
| } catch (error) { | |
| console.log(error); | |
| } | |
| let data; | |
| try { | |
| data = await response.json(); | |
| document.querySelector(".loading").style.display = "none"; | |
| } catch (error) { | |
| console.log(error); | |
| } | |
| const img = document.createElement("img"); | |
| img.src = data.message; | |
| results.appendChild(img); | |
| /* | |
| fetch("https://dog.ceo/api/breeds/image/random") | |
| .then((response) => { | |
| response | |
| .json() | |
| .then((data) => { | |
| console.log(data); | |
| const img = document.createElement("img"); | |
| img.src = data.message; | |
| results.appendChild(img); | |
| }) | |
| .catch((error) => { | |
| console.log(error); | |
| }); | |
| }) | |
| .catch((error) => { | |
| console.log(error); | |
| }); | |
| */ | |
| console.log("ok"); | |
| /* | |
| try { | |
| const request = new XMLHttpRequest(); | |
| request.open("GET", "https://dog.ceo/api/breeds/image/random"); | |
| request.addEventListener("error", () => { | |
| document.querySelector(".error").style.display = "block"; | |
| }); | |
| request.responseType = "json"; | |
| request.addEventListener("load", () => { | |
| if (request.status != "200") { | |
| document.querySelector(".error").style.display = "block"; | |
| return; | |
| } | |
| document.querySelector(".error").style.display = "none"; | |
| const img = document.createElement("img"); | |
| img.src = request.response.message; | |
| results.appendChild(img); | |
| }); | |
| request.send(); | |
| } catch (error) { | |
| console.error(`Erreur XHR ${request.status}`); | |
| } | |
| */ | |
| }); |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <title>Document</title> | |
| <script src="app.js" defer></script> | |
| <link | |
| rel="stylesheet" | |
| href="https://cdn.jsdelivr.net/npm/water.css@2/out/water.css" | |
| /> | |
| <style> | |
| .error { | |
| color: red; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Chien 🐶</h1> | |
| <form> | |
| <button type="submit">Woof woof</button> | |
| </form> | |
| <p class="loading" style="display: none">Loading... Please wait...</p> | |
| <p id="results"></p> | |
| <p class="error" style="display: none">Il y'a une erreur</p> | |
| </body> | |
| </html> |
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