how to fetch data from api in javascript code example
Example 1: javascript fetch api
fetch('http://example.com/movies.json')
.then((response) => {
return response.json();
})
.then((data) => {
console.log(data);
});
Example 2: How to Use the JavaScript Fetch API to Get Data
fetch('http://api.steampowered.com/ISteamUserStats/GetGlobalAchievementPercentagesForApp/v0002/?gameid=221380')
.then(function(response) {
return response.json();
})
.then(function(myJson) {
console.log(JSON.stringify(myJson));
});
Example 3: get data from fetch api into variable
<script>
function getFromAPI(url, callback){
var obj;
fetch(url)
.then(res => res.json())
.then(data => obj = data)
.then(() => callback(obj))
}
getFromAPI('https://jsonplaceholder.typicode.com/posts', getData);
function getData(arrOfObjs){
var results = "";
arrOfObjs.forEach( (x) => {
results += "<p> Id: " + x.id + "<ul>"
Object.keys(x).forEach( (p) => {
results += "<li>" + (p + ": " + x[p]) + "</li>";
});
results += "</ul> </p> <hr>"
})
results += "";
document.getElementById("myDiv").innerHTML = results;
}
</script>
Example 4: fetch api javascript
// This will fetch api.example.com/comments with a header and a body
fetch(`https://api.example.com/comments`, {
method: 'POST', //This could be any http method
headers: {
'Authorization': 'Basic SGVsbG8gdGhlcmUgOikgSGF2ZSBhIGdvb2QgZGF5IQ==',
'Content-Type': 'application/json',
},
body: JSON.stringify({
UID: 58,
Comment: "Fetch is really easy!",
}),
})
.then((response) => response.json)
.then((newComment) => {
// Do something magical with your newly posted comment :)
});
Example 5: get data from api in javascript
const GetData = [];
useEffect(() => {
fetch(API_URL)
.then((res) => res.json())
.then((data) => {
GetModesData.push(...data);
setDataState(GetData.map((d) => d.modeName));
});
}, []);
Example 6: fetch api map
const GetData = [];
useEffect(() => {
fetch(API_URL)
.then((res) => res.json())
.then((data) => {
GetModesData.push(...data);
setDataState(GetData.map((d) => d.modeName));
});
}, []);