I'm facing the same issue as mentioned here:
When trying to use stream and query a table without mentioning the schema.
Something like select * from table instead of select * from schema_name.table. I get the following error:
mssql uncaughtException RequestError: Invalid object name
I was able to log the error while listening to readStream.on('error') but it still throws an uncaughtException.
Software versions
"mssql": "^7.2.1",
"nodejs": "12.15.0"
Expected behavior:
Should be able to catch the uncaughtException
Actual behavior:
INFO: waaaaaa1
uncaughtException RequestError: Invalid object name 'employee'.
at handleError (.../node_modules/mssql/lib/tedious/request.js:388:15)
at Connection.emit (events.js:223:5)
at Connection.emit (.../node_modules/tedious/lib/connection.js:1071:18)
at Parser. (.../node_modules/tedious/lib/connection.js:1176:12)
at Parser.emit (events.js:223:5)
at Readable. (.../node_modules/tedious/lib/token/token-stream-parser.js:27:14)
Configuration:
import mssql from 'mssql';
try {
mssql.connect({
server,
port: Number.parseInt(port),
database,
user,
password,
options: {
encrypt: true, // for azure
trustServerCertificate: trustServerCertificate ? true : false // change to true for local dev / self-signed certs
}
})
.then(async client => {
const readStream = client.request();
readStream.stream = true;
const passThroughStream = new stream.PassThrough();
const writeStream = fs.createWriteStream(path.join(__dirname, './writeMe.json'));
readStream.on('error', () => log.info('waaaaaa1'));
passThroughStream.on('error', () => log.info('waaaaaa2'));
writeStream.on('error', () => log.info('waaaaaa3'));
readStream.pipe(passThroughStream).pipe(writeStream);
readStream.query(query);
})
// the promise error handler
.catch(() => {
log.info('waaaaaa4');
});
// the main sql error handler:
mssql.on('error', error => {
log.error('SQL error1', error);
});
// the main sql error handler:
client.on('error', error => {
log.error('SQL error2', error);
});
}
catch (err) {
log.info('catchhhh meee', err);
}
finally {
if(client){
client.close();
}
}
Finally resolved the issue using const readableStream = request.toReadableStream();
Full code:
const request = client.request();
const readableStream = request.toReadableStream();
const writeStream = fs.createWriteStream(path.join(__dirname, './writeMe.json'));
const passThroughStream = new stream.PassThrough();
readableStream.on('end', () => passThroughStream.end());
readableStream.on('error', (e) => log.info('waaaaaa1'));
readableStream.pipe(passThroughStream).pipe(writeStream);
request.query(query);
Try adding a catch handler to connect and more important to the mssql object as mentioned in the docs
mssql.connect({
// ...
})
.then(() => {
return readStream.query(query);
})
// the promise error handler
.catch(() => {
})
// the main sql error handler:
mssql.on('error', error => {
console.error('SQL error')
})