NoMethodError: undefined method '[]=' for nil:NilClass

[vladimir-konnov]

Hi!
I'm using version 0.16.0 and I'm using config.include_headers_in_response = true configuration option. Here's the stacktrace:

…-ruby-4b4dcabc0da4/lib/faraday/response/add_headers.rb:    4:in `on_complete'
…gems/2.4.0/gems/faraday-0.10.1/lib/faraday/response.rb:    9:in `block in call'
…gems/2.4.0/gems/faraday-0.10.1/lib/faraday/response.rb:   61:in `on_complete'
…gems/2.4.0/gems/faraday-0.10.1/lib/faraday/response.rb:    8:in `call'
…gems/2.4.0/gems/faraday-0.10.1/lib/faraday/response.rb:    8:in `call'
…gems/faraday-0.10.1/lib/faraday/request/url_encoded.rb:   15:in `call'
…/2.4.0/gems/faraday-0.10.1/lib/faraday/rack_builder.rb:  139:in `build_response'
…ms/2.4.0/gems/faraday-0.10.1/lib/faraday/connection.rb:  377:in `run_request'
…ms/2.4.0/gems/faraday-0.10.1/lib/faraday/connection.rb:  140:in `get'
…ntact-api-ruby-4b4dcabc0da4/lib/fullcontact/request.rb:   17:in `request'
…ntact-api-ruby-4b4dcabc0da4/lib/fullcontact/request.rb:    6:in `get'
…api-ruby-4b4dcabc0da4/lib/fullcontact/client/person.rb:   15:in `person'
…s/fullcontact-api-ruby-4b4dcabc0da4/lib/fullcontact.rb:   23:in `method_missing'
…services/contacts/full_contact/full_contact_service.rb:   32:in `person'
...

So it seems that when FullContact returns error (NotFound for example), then in the on_complete callback env.body is nil.

[vladimir-konnov]

Which version of fullcontact gem will include the fix for this bug? I can propose the following straightforward solution:

module Faraday
  class Response::AddHeaders < Response::Middleware
    def on_complete(env)
      (env.body ||= {})[:http_headers] = env.response_headers
      env.body
    end
  end
end