---
title: "PostgreSQL"
description: "How to use PostgreSQL as the Corridor Platform's metadata database."
---

This section describes how to use PostgreSQL ([https://www.postgresql.org/](https://www.postgresql.org/)) as the metadata database.

Supported versions: 11.7+

We use sqlalchemy's postgresql dialect to connect to the PostgreSQL server - this can be set up using multiple
methods that are described in [https://docs.sqlalchemy.org/en/13/dialects/postgresql.html](https://docs.sqlalchemy.org/en/13/dialects/postgresql.html).

We recommend using `psycopg2`. This is installed by default with the following components:

- API
- Celery - API worker

## Configurations

In the API configurations, the following configurations need to be set:

- `SQLALCHEMY_DATABASE_URI = 'postgresql://<username>:<password>@<hostname>/<dbname>'`
  Needs to be set to be able to connect to the Database.
- Also, check the other configurations that may be required as described in
  [API - Configurations > SQLAlchemy section](/technology/installation/configuration-setup/api/)