WebMock and Faraday in irb console

webmock-trivial.rb

require 'webmock'
include WebMock::API

# Enable WebMock, but...
WebMock.enable!
# ...allow connection for non-stubbed requests:
WebMock.allow_net_connect!

url = 'https://www.example.com'

# will actually get URL
Faraday.get url

stub_request(:any, url).to_return(body: 'abc', headers: {'Content-Length' => 3})

# will get stubbed content
Faraday.get url

# Now, let's disable WebMock and its stubs:
WebMock.disable!

# will actually get URL (again)
Faraday.get url