Added modules for books & series.

backend/nestjs-seshat-api/src/series/series.service.ts

@@ -0,0 +1,25 @@
+import { Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { SeriesEntity } from './entities/series.entity';
+import { Repository } from 'typeorm';
+import { PinoLogger } from 'nestjs-pino';
+import { CreateSeriesDto } from './dto/create-series.dto';
+import { DeleteSeriesDto } from './dto/delete-series.dto';
+
+@Injectable()
+export class SeriesService {
+  constructor(
+    @InjectRepository(SeriesEntity)
+    private seriesRepository: Repository<SeriesEntity>,
+    private logger: PinoLogger,
+  ) { }
+
+
+  async deleteSeries(series: DeleteSeriesDto) {
+    return await this.seriesRepository.delete(series);
+  }
+
+  async updateSeries(series: CreateSeriesDto) {
+    return await this.seriesRepository.upsert(series, ['provider', 'providerSeriesId']);
+  }
+}