Multi tool use

Rails unable to generate instance variable in class initialize method to generate httparty request

I'm having issues generating a Signature via a Ruby class. When I go into my docker container, I'm able to see that all the instance variables in the initialize method are nil expect the @api_key variable.

Signature

initialize

nil

@api_key

I have the following class

require 'openssl'
require 'base64'

module SeamlessGov
class Form
include HTTParty
attr_accessor :form_id
base_uri "https://nycopp.seamlessdocs.com/api"

def initialize()
@api_key = ENV['SEAMLESS_GOV_API_KEY']
@signature = generate_signature
@form_id = ENV['SEAMLESS_GOV_FORM_ID']
@timestamp = Time.now.to_i.to_s
end

def relative_uri
"/form/#{@form_id}/elements"
end

def create_form
self.class.get(relative_uri, headers: generate_headers)
end

private

def generate_signature
OpenSSL::HMAC.hexdigest('sha256', ENV['SEAMLESS_GOV_SECRET'], "GET+#{relative_uri}+#{@timestamp}")
binding.pry
end

def generate_headers
{
"Authorization" => "HMAC-SHA256 api_key='#{@api_key}' signature='#{@timestamp}'",
Net::HTTP::ImmutableHeaderKey.new('AuthDate') => "#{@timestamp}"
}
end
end
end


As you see, from the binding.pry in the generate_signature method I'm able to see the instance variables:

binding.pry

generate_signature

The relative_uri method needed to generate the signature doesn't load the @form_id variable in the string.

relative_uri

@form_id

Here is the controller:

class FormsController < ApplicationController
def display_form
@form = SeamlessGov::Form.new().create_form
end
end


If I call create_form this is the output:

create_form

{"error"=>true,
"error_log"=>
[{"error_code"=>"missing_date_headers",
"error_message"=>"Request is missing date headers",
"error_description"=>
"{"Host":"nycopp.seamlessdocs.com","Connection":"close","X-Real-IP":"71.249.243.7","X-Forwarded-For":"71.249.243.7","X-Forwarded-Host":"nycopp.seamlessdocs.com","X-Forwarded-Port":"443","X-Forwarded-Proto":"https","X-Original-URI":"/api/form//elements","X-Scheme":"https","Authorization":"HMAC-SHA256 api_key='h123xxxxxxxxxx' signature=''","AuthDate":""}"},
{"error_code"=>"external_auth_error", "error_message"=>"Date header is missing or timestamp out of bounds"}]}


What is the issue?

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