Скачать или смотреть Managing Lifecycle of Dependencies

Managing the lifecycle of dependencies is crucial for resource-intensive applications. In FastAPI, you can control the lifecycle of dependencies using context managers. This is particularly useful for managing resources like database sessions that need to be opened and closed properly. By using context managers, you can ensure that resources are managed efficiently, and any cleanup tasks are performed. For example, consider a dependency that manages a database session. You can use a context manager to open a session at the start of the request and close it at the end. This approach ensures that resources are not leaked and are reused effectively across requests.