I am working to develop a server with Node.js to request a postgreSQL database. My problem is, that I can't connect (with my local computer, using wifi connection, not ethernet) to this server, and also to the postgreSQL.

I have an username and a password to connect to the server, and also an another username and password to connect the database.

How can to connect both of those, and get the information I want from the postgreSQL database? Can I connect to this server with command bash like ssh but in node.js?

I did something like this:

var ssh = new SSH({
    host: 'hostname',
    user: 'user',
    pass: 'password'
});

or something like this:

var connectionString = 'postgres://user:password@database:port';

I have another problem, my teacher give me a password containing a @, and I think this will make some problems when I have to put my password:

postgres://user:pass**@**word@database:port

How to bypass this password problem?