Password authentication failed for user postgres

Hello Everyone,

I am working on rest api’s by postgresql while loging i am getting error:
password authentication failed for user postgres

I have configured toml file also

PostgreSQL database integration.

  # PostgreSQL dsn (e.g.: postgres://user:password@hostname/database?sslmode=disable).

  # This sets the max. number of open connections that are allowed in the
  # PostgreSQL connection pool (0 = unlimited).

Any suggestion is appreciated.