deno.land / x / sheetjs@v0.18.3 / demos / database / FirebaseDemo.html
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<title>SheetJS Firebase Dump Demo</title>
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<pre>
<h3><a href="//sheetjs.com/">SheetJS</a> Firebase Dump Demo</h3>
<b>Example Code</b>
/* ... connect to firebase */
const database = firebase.database();
/* import workbook */
await database.ref('foo').set(workbook);
/* change cells */
database.ref('foo').update({
"Sheets/Sheet1/A1": {"t": "s", "v": "J"},
"Sheets/Sheet1/A2": {"t": "n", "v": 5},
});
/* export snapshot */
const val = await database.ref('foo').once('value').val();
XLSX.writeFile(wb, "firebase.xlsx");
</pre>
<script src="xlsx.full.min.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.12.0/firebase.js"></script>
<script>
const Firebase = firebase;
const config = {
credential: {
getAccessToken: () => ({
expires_in: 0,
access_token: '',
}),
},
databaseURL: 'ws://localhost:5555'
};
/* make new workbook object from CSV */
const wb = XLSX.read('a,b,c\n1,2,3', {type:"binary"});
let P = Promise.resolve("sheetjs");
/* Connect to Firebase server and initialize collection */
P = P.then(async () => {
Firebase.initializeApp(config);
const database = Firebase.database();
await database.ref('foo').set(null);
return [database];
});
/* Insert entire workbook object into `foo` ref */
P = P.then(async ([database]) => {
await database.ref('foo').set(wb);
return [database];
});
/* Change cell A1 of Sheet1 to "J" and change A2 to 5 */
P = P.then(async ([database]) => {
database.ref('foo').update({
"Sheets/Sheet1/A1": {"t": "s", "v": "J"},
"Sheets/Sheet1/A2": {"t": "n", "v": 5},
});
return [database];
});
/* Write to file */
P = P.then(async ([database]) => {
const val = await database.ref('foo').once('value');
const wb = await val.val();
XLSX.writeFile(wb, "firebase.xlsx");
console.log(csv);
return [database];
});
/* Close connection */
P = P.then(async ([database]) => { database.app.delete(); });
</script>
</body>
sheetjs
Version Info
2 years ago
