spring.factories → Its role is to automatically register and load Spring Boot components, mainly auto-configurations and application listeners. Internal Flow: 1. Application starts with @SpringBootApplication. 2. @EnableAutoConfiguration is triggered. 3. Spring Boot reads the auto-configuration registrations. (spring.factories in older versions, AutoConfiguration.imports in Spring Boot 3.x). 4. It finds the list of AutoConfiguration classes. 5. Each AutoConfiguration class is loaded. 6. Spring checks conditions like: - @ConditionalOnClass - @ConditionalOnMissingBean - @ConditionalOnProperty 7. If the conditions are satisfied, the required beans are created and registered in the ApplicationContext (IoC Container). 8. Your application starts with those beans available for use.

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