Add not found error.

lib/ebay_api.rb

@@ -84,6 +84,14 @@ class << self
     end
   end
 
+  response(404) do |_, _, (data, *)|
+    data = data.to_h
+    error = data.dig("errors", 0) || {}
+    code = error["errorId"]
+    message = error["longMessage"] || error["message"]
+    raise NotFound.new(code: code), message
+  end
+
   # https://go.developer.ebay.com/api-call-limits
   response(429) do |_, _, (data, *)|
     data = data.to_h

lib/ebay_api/exceptions.rb

@@ -12,6 +12,9 @@ def initialize(*args, code: nil, data: nil, **)
   class InvalidAccessToken < Error; end
   class AlreadyExists < Error; end
 
+  # HTTP 404 from eBay.
+  class NotFound < Error; end
+
   # HTTP 500 from eBay. May be retried in most cases.
   class InternalServerError < Error; end
 

spec/error_handling_spec.rb

@@ -43,4 +43,17 @@ class EbayAPI
       end
     end
   end
+
+  context "when offer already deleted" do
+    let(:response) do
+      open_fixture_file "resource_not_found"
+    end
+
+    it do
+      expect { subject }.to raise_error(EbayAPI::NotFound) do |ex|
+        expect(ex.code).to eq 25713
+        expect(ex.message).to match /This Offer is not available/
+      end
+    end
+  end
 end

spec/fixtures/resource_not_found

@@ -0,0 +1,5 @@
+HTTP/1.1 404 Not Found
+Content-Length: 188
+Content-Type: application/json
+
+{"errors":[{"errorId":25713,"domain":"API_INVENTORY","subdomain":"Selling","category":"REQUEST","message":"This Offer is not available.","parameters":[{"name":"text1","value":"123456"}]}]}