No logs and `undefined method [] for nil:NilClass`, Rails 7

[pierrea]

Hi, I'm unable to see HTTP logs on my Rails 7 app. I added version 1.5.0 of the gem in the :development group of my Gemfile and added the following to my /config/environments/development.rb :

HttpLog.configure do |config|
  config.logger = Rails.logger
end

When I make a test http call from the ruby console using Ethon, the call succeeds but I get the following error message which points here:

/Users/<me>/.rvm/gems/ruby-3.0.3@hubflo/gems/httplog-1.5.0/lib/httplog/adapters/ethon.rb:33:in `perform': undefined method `[]' for nil:NilClass (NoMethodError)

When the test http call is made using Httparty, I don't get any error message. However regardless of the http gem used, no logs are displayed in my server logs.

I don't know what I'm missing. Thanks for your help!

[trusche]

Hm. Could I get your exact rails and ruby versions please, and ideally your Gemfile.lock?

[trusche]

Never mind, I can reproduce it somewhat. It seems to be the config.logger = Rails.logger directive, without that it works fine with Net::HTTP, with it it raises a similar error. I'll take a closer look at what has changed.

[trusche]

@pierrea if you move the httplog configuration from environments/development.rb into an initializer, it should work. Seems like the logger is not yet initialized at this point. To use it only in development, you can add a if Rails.env.development? guard clause.

I will update the README accordingly.

[pierrea]

Thank you @trusche for taking the time to look into this. After moving the init code from environments/development.rb to an initializer, I still don't get any logs.

I was using a config.after_initialize block in the development.rb config file like so, which I believe is the same as putting it in a initializer:

config.after_initialize do
  HttpLog.configure do |config|
    config.logger = Rails.logger
    config.color = { color: :black, background: :yellow }
  end
end

My exact Rails version is 7.0.2.3 and ruby is 3.0.3-p157

[trusche]

Ok, some more questions then:

• Do you still get the exception with Ethon?
• You don't get any logs with Ethon, or HTTParty, or both?
• Could you confirm that you don't see anything in the logfiles themselves, as opposed to the output from the development server in the console? They're not always identical.

[pierrea]

Thanks again for your willingness to dig deeper. I'm relieved to say that [httplog] lines are present in the development.log file! Do you know what could cause logs not to show in the server console? I didn't know this was possible.

Logs are present in the logfile for both Ethon and HTTParty. And yes, still getting the exception with Ethon, but no exception with HTTParty.

[pierrea]

I just realized removing the config.logger = Rails.logger line fixes the issue! No need to specify this anymore in Rails 7, perhaps? Anyways, thank you for your help!

I think the Ethon exception is somewhat unrelated.