从我的 Node.js 后端查询我的 Cloud Sql DB

Question

Recently I've been learning google cloud sql it took a little but I was able to connect my cloud sql auth proxy to my postgres client. However I'm not sure how to query or make post request to my cloud sql. Originally I was just doing

const Pool = require("pg").Pool;

const pool = new Pool({
    user: "postgres",
    password: "****",
    host: "localhost",
    port: 5432,
    database: "somedb"
});

I'm not sure how to convert this over to try and query the cloud sql db. I did try converting it and got.

const Pool = require("pg").Pool;

const pool = new Pool({
    user: "postgres",
    password: "****",
    host: "[cloud sql ip]",
    port: 5432,
    database: "[pg/gc db]"
});

I end up getting the error [pg_hba.conf rejects connection for host "[ipv4 ip]", user "postgres", database "[pg/gc db]", no encryption]. I know that the documentation has a code sample but I don't understand it and cant really find any resources on explaining it.

Edit: I am uploading files to a bucket in cloud storage which I was successfully able to do. I plan on mapping out all these files onto a webpage. However I would like to filter them by certain features so I am making a second request after I store the file. My second request will store attributes into a database that I can then relate to the files for filtering.

Answer 1

If you're running the auth proxy from your local machine where you're running your application, then the code will be the same from your application's code perspective. You'll still connect to localhost (although you may need to connect to 127.0.0.1 depending on how you have hosts set up on the machine).

The database field will depend on how you've set up the database in Cloud SQL, but it should be the same as your local database. Eg if you created a database named "somedb" in Cloud SQL, you don't have to change anything to connect to it in Cloud SQL. The proxy running locally will make everything behave as if you're running the database locally from the application's perspective.