fix: Add blank check for file param in Import API (chatwoot#3057)

app/controllers/api/v1/accounts/contacts_controller.rb

@@ -30,10 +30,13 @@ def search
   end
 
   def import
+    render json: { error: I18n.t('errors.contacts.import.failed') }, status: :unprocessable_entity and return if params[:import_file].blank?
+
     ActiveRecord::Base.transaction do
       import = Current.account.data_imports.create!(data_type: 'contacts')
       import.import_file.attach(params[:import_file])
     end
+
     head :ok
   end
 

config/locales/en.yml

@@ -41,6 +41,9 @@ en:
       invalid_email: You have entered an invalid email
       email_already_exists: "You have already signed up for an account with %{email}"
       failed: Signup failed
+    contacts:
+      import:
+        failed: File is blank  
 
   reports:
     period: Reporting period %{since} to %{until}

spec/controllers/api/v1/accounts/contacts_controller_spec.rb

@@ -105,6 +105,20 @@
         expect(account.data_imports.first.import_file.attached?).to eq(true)
       end
     end
+
+    context 'when file is empty' do
+      let(:admin) { create(:user, account: account, role: :administrator) }
+
+      it 'returns Unprocessable Entity' do
+        post "/api/v1/accounts/#{account.id}/contacts/import",
+             headers: admin.create_new_auth_token
+
+        json_response = JSON.parse(response.body)
+
+        expect(response).to have_http_status(:unprocessable_entity)
+        expect(json_response['error']).to eq('File is blank')
+      end
+    end
   end
 
   describe 'GET /api/v1/accounts/{account.id}/contacts/active' do