I'm having issues connecting my node-express-typeorm server with CloudSQL Postgres instance using CloudRun.
I have successfully added the database proxy based on the official doc: https://cloud.google.com/run/docs/configuring/connect-cloudsql
And set environment variable for the express services as
TYPEORM_URL=/cloudsql/[CONNECTION NAME]
But the app is failing to start as its unable to connect to the database.
I have solved the issue. The culprit was TypeORM. TypeORM is parsing database host from TYPEORM_URL using / delimiter. And it was only reading cloudsql instead of /cloudsql/[CONNECTION NAME]. So the app was unable to connect to the correct endpoint.
To fix the issue set the following environment variables instead of TYPEORM_URL
TYPEORM_HOST=/cloudsql/[CONNECTION NAME]
TYPEORM_USERNAME=<username>
TYPEORM_PASSWORD=<password>
TYPEORM_DATABASE=<db>