SSL is not enabled on the server

To establish a connection without SSL, try

postgres://username:password@host:5432/database?sslmode=disable

You should establish DB connection without SSL encryption, like that:

db, err := sql.Open("postgres", "user=test password=test dbname=test sslmode=disable")

If your data source name is a url, you will do it like this:

db, err := sql.Open("postgres", "postgres://username:password@localhost/db_name?sslmode=disable")

sslmode is just added to the db url like a query parameter.

Notice, please:

This even occurs, if you have indicated a sslmode=disable, but have empty other param. For example dbname=

For example, connection string:

user=test password=test dbname=sslmode=disable will also issue this error, because dbname is empty.

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