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docs(pg-pool): use connectionString for a database URL in README #3861

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docs(pg-pool): use connectionString for a database URL in README
ragib-mrb Nov 13, 2026
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ragib-mrb Nov 15, 2026
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32 changes: 5 additions & 27 deletions packages/pg-pool/README.md
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Expand Up @@ -50,37 +50,15 @@ const pgNativePool = new Pool({ Client: PgNativeClient })

##### Note:

The Pool constructor does not support passing a Database URL as the parameter. To use pg-pool on heroku, for example, you need to parse the URL into a config object. Here is an example of how to parse a Database URL.
To connect with a [connection URI](https://node-postgres.com/features/connecting#connection-uri), pass it as the `connectionString` client option.

```js
const Pool = require('pg-pool')
const url = require('url')

const params = url.parse(process.env.DATABASE_URL)
const auth = params.auth.split(':')

const config = {
user: auth[0],
password: auth[1],
host: params.hostname,
port: params.port,
database: params.pathname.split('/')[1],
ssl: true,
}

const pool = new Pool(config)

/*
Transforms, 'postgres://DBuser:secret@DBHost:#####/myDB', into
config = {
user: 'DBuser',
password: 'secret',
host: 'DBHost',
port: '#####',
database: 'myDB',
ssl: true
}
*/
const pool = new Pool({
connectionString: process.env.DATABASE_URL,
max: 20,
})
```

### acquire clients with a promise
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