Merge pull request #13207 from demarche-numerique/degraded-mode-for-429

ETQ usager, permettre le mode dégradé en cas de rate limit 429 API Entreprise

Author: mfo

app/services/api_entreprise_service.rb

@@ -47,6 +47,8 @@ def create_etablissement_as_degraded_mode(dossier_or_champ, siret, user_id = nil
     # Returns Failure(type:, code:, retryable:, raw_response:) on non-recoverable errors
     def create_etablissement_with_fallback(dossier_or_champ, siret, user_id = nil)
       case create_etablissement(dossier_or_champ, siret, user_id)
+      in Failure(type: :rate_limited, retryable: true, **)
+        Success(create_etablissement_as_degraded_mode(dossier_or_champ, siret, user_id))
       in Failure(retryable: true, **) => failure if degraded_mode?(failure.failure, target: :insee)
         Success(create_etablissement_as_degraded_mode(dossier_or_champ, siret, user_id))
       in result

spec/services/api_entreprise_service_spec.rb

@@ -160,6 +160,20 @@
       end
     end
 
+    context 'when API returns 429 (rate limited)' do
+      before do
+        stub_request(:get, /https:\/\/entreprise.api.gouv.fr\/v4\/insee\/sirene\/etablissements\/#{siret}/)
+          .to_return(body: '{"errors":[]}', status: 429)
+      end
+
+      it 'falls back to degraded mode without checking ping' do
+        expect(APIEntrepriseService).not_to receive(:api_insee_up?)
+        expect(subject).to be_success
+        expect(subject.value!.siret).to eq(siret)
+        expect(subject.value!).to be_as_degraded_mode
+      end
+    end
+
     context 'when API returns 451' do
       before do
         stub_request(:get, /https:\/\/entreprise.api.gouv.fr\/v4\/insee\/sirene\/etablissements\/#{siret}/)