getaddrinfo: nodename nor servname provided, or not known
The error occurs when the DNS resolution fails. Check if you can wget (or curl) the api url from the command line. Changing the DNS server and testing it might help.
delayed-job
Manually Retry Job in Delayed_job
To manually call a job Delayed::Job.find(10).invoke_job # 10 is the job.id This does not remove the job if it is run successfully. You need to remove it manually: Delayed::Job.find(10).destroy
How to test ActionMailer deliver_later with rspec
If I understand you correctly, you could do: message_delivery = instance_double(ActionMailer::MessageDelivery) expect(ServiceMailer).to receive(:new_user).with(@user).and_return(message_delivery) allow(message_delivery).to receive(:deliver_later) The key thing is that you need to somehow provide a double for deliver_later.
How do you tell a specific Delayed::Job to run in console?
You can also do it like this: Delayed::Worker.new.run( Delayed::Job.find(x) )