20241205 DIコンテナ

Transcript

1. DIίϯςφ
2. DI΍ͬͯΔͱ…
3. new new new
4. const clientManager = new PrismaClientManager(); const transactionManager = new PrismaTransactionManager(clientManager); const bookRepository = new PrismaBookRepository(clientManager); const registerBookApplicationService = new RegisterBookApplicationService( bookRepository, transactionManager );
5. ᓔಃ͍͠
6. ͜͜ͰDIίϯςφ
7. const clientManager = new PrismaClientManager(); const transactionManager = new PrismaTransactionManager(clientManager); const bookRepository = new PrismaBookRepository(clientManager); const registerBookApplicationService = new RegisterBookApplicationService( bookRepository, transactionManager ); ͜Ε͕
8. const registerBookApplicationService = container.resolve( RegisterBookApplicationService ); ͜Μ͚ͩʹ
9. ղܾํ๏(tsyringe)
10. Transient ɾσϑΥϧτ ɾresolve ΛݺͿͨͼʹ৽͍͠Πϯελϯε͕࡞੒ ɾ࢖༻ྫɿී௨ʹ
11. Singleton ɾΞϓϦέʔγϣϯશମͰ1ͭͷΠϯελϯε ɾ࢖༻ྫɿσʔλϕʔεΫϥΠΞϯτ౳
12. ResolutionScoped ɾґଘղܾʢresolveʣͷ1ճͷνΣʔϯ಺Ͱಉ͡ΠϯελϯεΛ ڞ༗ ɾ࢖༻ɿτϥϯβΫγϣϯͱ͔
13. ContainerScoped ɾґଘؔ܎ίϯςφʔ͸ɺ͜ͷґଘؔ܎ͷղܾ͕ཁٻ͞ΕΔͨͼ ʹಉ͡ΠϯελϯεΛฦ͠·͢ɻ͜Ε͸γϯάϧτϯʹࣅ͍ͯ· ͕͢ɺࢠίϯςφʔ͕࡞੒͞ΕΔͱɺͦͷࢠίϯςφʔ͸ݻ༗ͷ ΠϯελϯεΛղܾ͠·͢ɻ ɾ࢖༻ɿʁʁʁ
14. ࢖༻ྫ
15. @injectable() export class RegisterItemApplicationService { constructor( @inject("IItemRepository") private readonly itemRepository: IItemRepository, @inject("ITransactionManager") private readonly transactionManager: ITransactionManager ) {} ུ }
16. // TransactionManager container.register("ITransactionManager", { useClass: SimpleTransactionManager, }); // Repository container.register( "IItemRepository", { useClass: InMemoryItemRepository, }, { lifecycle: Lifecycle.ResolutionScoped, } );
17. const registerItemApplicationService = container.resolve(RegisterItemApplicationService); await registerItemApplicationService.execute("Notebook");