Dependency Injection for Nest JS Interceptor is Undefined - nestjs

Question

I have created an interceptor as shown below that I wish to use globally. I added the interceptor to my module and set it up so that nest js should handle the DI for me per NestJS Docs, however when I make a request to my service, I get an error indicating Cannot read property log of undefined so it appears that the DI is not being taken care of by NestJS.
Interceptor Code:
import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '#nestjs/common';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';
import { LoggingService } from './logging.service';
#Injectable()
export class AuthInterceptor implements NestInterceptor {
constructor(private readonly loggingService: LoggingService) { }
intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
return next
.handle()
.pipe(
map((response) => {
this.loggingService.log('Responded successfully');
return response;
})
);
}
}
Interceptor Module:
import { Module } from '#nestjs/common';
import { APP_INTERCEPTOR } from '#nestjs/core';
import { AuthInterceptor } from './auth.interceptor';
import { LoggingService } from './logging.service';
#Module({
providers: [
LoggingService,
{
provide: APP_INTERCEPTOR,
useClass: AuthInterceptor,
},
],
})
export class AuthInterceptorModule {}
My app.module.ts at the root of my application imports the AuthInterceptorModule. I am assuming I am messing something up but it is not clear to me how to fix this DI issue.

Answer 1

I was able to resolve this one on my own after finding that my LoggingService relied on another dependency that was request scoped. Since there was a request scoped dependency in my interceptor, this meant that my interceptor also had to be request scoped.
The change to the code was simple and only required that I change the AuthInterceptorModule from:
import { Module } from '#nestjs/common';
import { APP_INTERCEPTOR } from '#nestjs/core';
import { AuthInterceptor } from './auth.interceptor';
import { LoggingService } from './logging.service';
#Module({
providers: [
LoggingService,
{
provide: APP_INTERCEPTOR,
useClass: AuthInterceptor,
},
],
})
export class AuthInterceptorModule {}
to
import { Module } from '#nestjs/common';
import { APP_INTERCEPTOR, Scope } from '#nestjs/core';
import { AuthInterceptor } from './auth.interceptor';
import { LoggingService } from './logging.service';
#Module({
providers: [
LoggingService,
{
provide: APP_INTERCEPTOR,
scope: Scope.REQUEST,
useClass: AuthInterceptor,
},
],
})
export class AuthInterceptorModule {}