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Javascript 2021-10-12 07:45:06
update component after api res
function MyComponent() { const [error, setError] = useState(null); const [isLoaded, setIsLoaded] = useState(false); const [items, setItems] = useState([]); // Note: the empty deps array [] means // this useEffect will run once // similar to c... Add solution -
Javascript 2021-10-08 17:11:04
Cannot read property 'map' of undefined
function MyComponent() { const [data, setData] = useState([]); const [loading, setLoading] = useState(false); useEffect(() => { setLoading(true); fetch('/api/data') .then((res) => res.json()) .then((data) => { s... Add solution -
Other 2021-10-06 00:43:07
JS Fetch API Post request
fetch('https://example.com/profile', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ 'foo': 'bar' }), }) .then((res) => res.json()) .then((data) => { // Do some stuff ... }) .catch((er... Add solution -
Javascript 2021-10-05 05:16:04
fetch data from external url nodejs
const fetch = require('node-fetch'); app.get('/', function (req, res) { var url = 'https://api.darksky.net/forecast/<API KEY>/37.8267,-122.4233'; fetch(url) .then(res => res.json()) .then(data => { res.send({ ... Add solution -
Javascript 2021-10-04 04:23:04
jwt implementation in node js
// index.js const express = require('express'); const jwt = require('jsonwebtoken'); const app = express(); // generate token for another API to use in req.header app.post('/login', (req, res) => { const user = { id: 1, username... Add solution -
Javascript 2021-10-04 01:39:04
how to delete popultate subdocument mongoose
Surf .find({user_id: {$in: userIds}}) .populate('user_id', 'name boards') // added boards .populate('friends', 'name') // .populate('board_id', 'name size') // can't do this as discussed .exec(function (err, surfs) { if (err) { ... Add solution -
Other 2021-09-28 00:51:03
(node:65723) UnhandledPromiseRejectionWarning: Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
router.get("/userprofile", passport.authenticate('jwt', { session: false }), (req, res) => { Profile.findOne({ user: req.user.id }).then(profile => { if (!profile) { return res.status(404).json({ error: "No Profile Found&... Add solution