How can I load an extension on sqlite3 in nodejs? - node.js

Question

This my connection code :
`
var sqlite3 = require('sqlite3').verbose()
const DBSOURCE = "db_path";
let db = new sqlite3.Database(DBSOURCE, (err) => {
if (err) {
console.error(err.message)
throw err
}else{
console.log('Connected to the SQLite database.');
}
});
module.exports = db`
I found something here, but I dont know its the correct way to do or to make it work :
https://github.com/mapbox/node-sqlite3/wiki/Extensions#databaseloadextensionpath-callback
tried this :
` let params = [];
db.all(`select load_extension('./config/math.dll')`, params, (err, rows) => {
console.log(err);
if (err) {
res.status(400).json({ StatusCode: 400, error: err.message });
return;
}
console.log(rows)
})`
and got error : Error: SQLITE_ERROR: not authorized
I couldn't find any sources for loading extension in node.js .

Answer 1

Using SELECT load_extension(...) is disabled by default for security reasons. However, you can load an extension like this:
const db = new sqlite3.Database('db.sqlite3');
db.loadExtension('./lib/uuid.dll');
db.all('SELECT uuid()', (error, rows) => {
console.log(rows);
});
db.close();
Notice the file name uuid.dll is not accidental. In my case, the uuid extension contains entry-point function called sqlite3_uuid_init, therefore the file must be called uuid.<extension> to make it work out of box. You can read more in SQLite documentation.