ERROR [ExceptionHandler] Nest can't resolve dependencies - Error with reading CSV file in Nest.js

Question

Im trying to read an uploaded CSV file in nest and get the following error

' ERROR [ExceptionHandler] Nest can't resolve dependencies of the AssetsController (AssetsService, ?). Please make sure that the argument CsvParser at index [1] is available in the AssetsModule context.'

I have imported the package: https://www.npmjs.com/package/nest-csv-parser

import {CsvParser} from 'nest-csv-parser'

Added the constructor

constructor(private readonly csvParser: CsvParser) {}

Created the entity

class Asset {
    assetID: string;
    assetName: string;
    assetType: string;
    assetDescription: string;
    assetLocation: string;
    assetImage: string;
    assetStatus: string;
    assetNotes: string;
    assetClientID: string;
    assetSiteID: string;
    assetContractorID: string;
    assetMaintenanceID: string;
    assetDocumentID: string;
    assetCreated: string;
    assetUpdated: string;
    assetCreatedBy: string;
    assetUpdatedBy: string;
}

and my function looks like so

 @Get('import')
    async parseCSVFile()
    {
        const csvPath = getCSVFile();
        console.log(" => ", csvPath);
        const stream = fs.createReadStream(csvPath)
        const entities: ParsedData<InstanceType<any>> = await this.csvParser.parse(stream, Asset)
        // You will get JSON
        console.log(entities);
    }

Module

import { Module } from '@nestjs/common';
import { AssetsService } from './assets.service';
import { AssetsController } from './assets.controller';
import { MongooseModule } from '@nestjs/mongoose';
import { AssetSchema } from 'assets/schemas/assets.schema';

@Module({
  imports: [
    MongooseModule.forFeature([{name: 'Assets', schema: AssetSchema}])
  ],
  providers: [AssetsService],
  controllers: [AssetsController]
})
export class AssetsModule {}

I have been following along with How do I read an uploaded file (text/.csv) using nestjs and Multer

Answer 1

Read the docs of nest-csv-parser:

that CsvParser provider is registered and exported by CsvModule, thus you must import it into your AssetsModule module.