将服务添加到自定义路线装饰器Nestjs
我有一个自定义的路线装饰器，该装饰器应该使用服务中的方法，但该服务返回未定义。 typeError：无法读取未定义的的属性'findcustomer'; Nestjs相当新的
//Custom Route Decorator - CustomerDecorator
export async function getCustomerFromExeContext(
context: ExecutionContext,
): Promise<Customer> {
let organizationService: OrganizationService;
const req = context.switchToHttp().getRequest<Request>();
if (!req.params.orgId)
throw new HttpException('OrgId not found', HttpStatus.UNAUTHORIZED);
const customer = await organizationService.findCustomer(
parseInt(req.params.orgId),
);
if (!customer) {
throw new HttpException('Customer not found', HttpStatus.NOT_FOUND);
}
return customer;
}
export const GetCustomer = createParamDecorator(
(_, context: ExecutionContext) => getCustomerFromExeContext(context),
);
是使用装饰器的控制器中的路由，
//Controller
@Get(':orgId')
get(@GetCustomer() customer: Customer) {
return this.organizationService.get(customer.customerId);
}
我可以在装饰函数中调用和使用该服务而无需返回undefined？
I have a Custom Route Decorator which is suppose to use a method from a Service but the service returns undefined. TypeError: Cannot read property 'findCustomer' of undefined;
Fairly new to nestjs
//Custom Route Decorator - CustomerDecorator
export async function getCustomerFromExeContext(
context: ExecutionContext,
): Promise<Customer> {
let organizationService: OrganizationService;
const req = context.switchToHttp().getRequest<Request>();
if (!req.params.orgId)
throw new HttpException('OrgId not found', HttpStatus.UNAUTHORIZED);
const customer = await organizationService.findCustomer(
parseInt(req.params.orgId),
);
if (!customer) {
throw new HttpException('Customer not found', HttpStatus.NOT_FOUND);
}
return customer;
}
export const GetCustomer = createParamDecorator(
(_, context: ExecutionContext) => getCustomerFromExeContext(context),
);
This is the Route within the controller that utilize the Decorator
//Controller
@Get(':orgId')
get(@GetCustomer() customer: Customer) {
return this.organizationService.get(customer.customerId);
}
Is there a way I can call and use the service within the decorator function without returning undefined?
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错误清楚地告诉了发生了什么事
错误均值
abysionserationservice是未定义的，并且您正在调用findcustomerin undefined。这里
让组织服务：组织服务;您创建一个未定义的变量。您需要先初始化它。
如果您内部有任何依赖性
anduransionsVice，则需要注入该类对象。如果不只是new Ansuranationservice（）将起作用The error tells clearly what exactly happening
The error means
organizationServiceis undefined and you are callingfindCustomeron undefined.Here
let organizationService: OrganizationService;you create an undefined variable. you need to initialize it first.
If you have any dependency inside
OrganizationServicethen you need to inject that class object. if not justnew OrganizationService()will work