Table of Contents

• Table of Contents
• Installation
• Usage
• Configuration
• Documentation
• License

Installation

npm install @knaadh/nestjs-drizzle-better-sqlite3 drizzle-orm better-sqlite3

Usage

Import the DrizzleBetterSQLiteModule module and pass an options object to initialize it. You can pass options object using the usual methods for custom providers as shown below:

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import * as schema from '../db/schema';
import { DrizzleBetterSQLiteModule } from '@knaadh/nestjs-drizzle-better-sqlite3';

@Module({
  imports: [
    // Method #1: Pass options object
    DrizzleBetterSQLiteModule.register({
      tag: 'DB_DEV',
      sqlite3: {
        filename: 'demo.db',
      },
      config: { schema: { ...schema } },
    }),

    // Method #2: useFactory()
   DrizzleBetterSQLiteModule.registerAsync({
      tag: 'DB_PROD',
      useFactory() {
        return {
          sqlite3: {
            filename: 'demo.db',
          },
          config: { schema: { ...schema } },
        };
      },
    }),

    // Method #3: useClass()
    DrizzleBetterSQLiteModule.registerAsync({
      tag: 'DB_STAGING',
      useClass: DBConfigService,
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

export class DBConfigService {
  create = () => {
    return {
      sqlite3: {
        filename: 'demo.db',
      },
      config: { schema: { ...schema } },
    };
  };
}

You can inject the Drizzle instances using their respective tag specified in the configurations

import { Inject, Injectable } from '@nestjs/common';
import * as schema from '../db/schema';
import { BetterSQLite3Database } from 'drizzle-orm/better-sqlite3';
@Injectable()
export class AppService {
  constructor(
    @Inject('DB_DEV') private drizzleDev: BetterSQLite3Database<typeof schema>,
    @Inject('DB_PROD') private drizzleProd: BetterSQLite3Database<typeof schema>
  ) {}
  async getData() {
    const books = await this.drizzleDev.query.books.findMany();
    const authors = await this.drizzleProd.query.authors.findMany();
    return {
      books: books,
      authors: authors,
    };
  }
}

Configuration

A DrizzleBetterSQLiteModule option object has the following interface:

export interface DrizzleBetterSQLiteConfig {
  sqlite3: {
    filename: string | Buffer;
    options?: Database.Options | undefined;
  };
  config?: DrizzleConfig<any> | undefined;
}

• sqlite3.filename: path to the database file. If the database file does not exist, it is created
• (optional) sqlite3.options: BetterSQLite options
• (optional config: DrizzleORM configuration.

Documentation

• NX
• DrizzleORM
• Better-SQLit3

License

This package is MIT licensed.