Can't get method to accept username/password

I’m new to Ruby…

Trying to write a method that accepts username and password string.

My method

def getRepos(username, password)
github = do |config|
config.basic_auth = ‘#{username}:#{password}’
github.repos.list :org => ‘MyOrg’


My Call

repos_json = getRepos(“jstew”,“spankyDooLittle”)

My Response:

Github::Error::Unauthorized: GET 401 Bad credentials

FYI, when I put the credentials directly into the method it works. I
have tried with and without quotes…any suggestions?

string interpolation (the #{…} syntax) only works inside double quotes

Thank you!!