Sha256: 129427cb9ef3a7afa5e5b6eaac069b66872b15e36cbfe99c017dd0068ce57e36
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Size: 1.72 KB
Versions: 7
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Contents
# frozen_string_literal: true
require 'aws-sigv4'
require 'http'
require 'json'
module Vacuum
# An Amazon Product Advertising API operation
class Operation
# @!visibility private
attr_reader :locale, :name, :params
# Creates a new operation
#
# @param [String] name
# @param [Hash] params
# @param [Locale] locale
def initialize(name, params:, locale:)
@name = name
@params = params
@locale = locale
end
# @return [Hash]
def headers
signature.headers.merge(
'x-amz-target' =>
"com.amazon.paapi5.v1.ProductAdvertisingAPIv1.#{name}",
'content-encoding' => 'amz-1.0',
'content-type' => 'application/json; charset=utf-8'
)
end
# @return [String]
def body
@body ||= build_body
end
# @return [String]
def url
@url ||= build_url
end
private
def build_body
hsh = { 'PartnerTag' => locale.partner_tag,
'PartnerType' => locale.partner_type }
params.each do |key, val|
key = key.to_s.split('_')
.map { |word| word == 'asin' ? 'ASIN' : word.capitalize }.join
hsh[key] = val
end
JSON.generate(hsh)
end
def build_url
"https://#{locale.host}/paapi5/#{name.downcase}"
end
def signature
signer.sign_request(http_method: 'POST', url: url, body: body)
end
def signer
Aws::Sigv4::Signer.new(service: 'ProductAdvertisingAPI',
region: locale.region,
access_key_id: locale.access_key,
secret_access_key: locale.secret_key,
http_method: 'POST', endpoint: locale.host)
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems