First of all, you should restore database into PostgresSQL by using PgAdmin.
Replace below variable located in database.py with appropriate values
SQLALCHEMY_DATABASE_URL="postgresql://username:password@localhost/db_name"
Install requirements for this project
pip install -r requirements.txt
uvicorn main:app --reload
API endpoints available on http://127.0.0.1:8000/
Official Swagger Panel available on http://127.0.0.1:8000/docs. It helps a lot to interact with API endpoints.