英文:
NestJS factory pattern for use service
问题
I have 2 types of login. I need to pass the param in the request and use this param in auth service to choose what service for login I should use.
Body in POST request:
{"type": "Customer","store": "store24","email": "test333333@email.com","password": "testpass2"}
authFactory.ts:
const loginFactoryTypes = {[LOGIN_TYPE.Customer]: CustomerAuthService,[LOGIN_TYPE.User]: UserAuthService,};export const createLoginFactory = (type: string) => {return loginFactoryTypes[type];};
auth.controller.ts:
@Post('/signin')signInFactory(@Body() signInDto: SignInUserDto & SignInCustomerDto): Promise<unknown> {const { type } = signInDto;const loginFactory: AuthInterface = createLoginFactory(type);return loginFactory.signin(signInDto);}
If I pass param type - Customer then I get this service CustomerAuthService:
async signin(signInDto: SignInCustomerDto) {const customer = await this.customersService.findCustomerByEmail(signInDto);const token = this.jwtService.sign({id: customer.id,email: customer.email,});return { token, customer };}
But the controller gets me an error on the string:
loginFactory.signin(signInDto);
I get the error loginFactory.signin is not a function.
英文:
I have 2 types of login. I need to pass the param in the request and use this param in auth service to choose what service for login I should use.
Does mb exist better way?
Body in POST request.
{"type": "Customer","store": "store24","email": "test333333@email.com","password": "testpass2"}
authFactory.ts
const loginFactoryTypes = {[LOGIN_TYPE.Customer]: CustomerAuthService,[LOGIN_TYPE.User]: UserAuthService,};export const createLoginFactory = (type: string) => {return loginFactoryTypes[type];};
auth.controller.ts
@Post('/signin')signInFactory(@Body() signInDto: SignInUserDto & SignInCustomerDto): Promise<unknown> {const { type } = signInDto;const loginFactory: AuthInterface = createLoginFactory(type);return loginFactory.signin(signInDto);}
If I pass param type - Customer then I get this service CustomerAuthService.
async signin(signInDto: SignInCustomerDto) {const customer = await this.customersService.findCustomerByEmail(signInDto);const token = this.jwtService.sign({id: customer.id,email: customer.email,});return { token, customer };}
But the controller gets me an error on the string.
loginFactory.signin(signInDto);
I get the error loginFactory.signin is not a function.
答案1
得分: 0
loginFactoryTypes[type] 会返回一个类，而不是像你期望的那样返回一个实例。
在 createLoginFactory 的消费者端，你可以利用 moduleRef 来使用 Nest 的 DI 系统检索该类的实例。
英文:
as you have this:
const loginFactoryTypes = {[LOGIN_TYPE.Customer]: CustomerAuthService,[LOGIN_TYPE.User]: UserAuthService,};
loginFactoryTypes[type] will return a class, not an instance like you've expected.
At the consumer side of createLoginFactory, you could leverage on moduleRef to retrieve an instance of that class using Nest's DI system.
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