Neo4j for NestJS

Neo4j driver for Nest Framework.

What's New

Changelog

Installation

$ npm i --save @iammhc/nestjs-neo4j

$ yarn add @iammhc/nestjs-neo4j

Usage

import { Neo4jModule, Neo4jModuleConfig } from '@iammhc/nestjs-neo4j';

Configuration

    imports: [
      Neo4jModule.forRoot({
          host: 'localhost',
          password: '',
          port: 34498,
          scheme: 'bolt',
          username: 'neo4j',
        }),
    ],

Async Configuration

When you need to set Neo4jModule options asynchronously instead of statically, use the forRootAsync() method. As with most dynamic modules, Nest provides several techniques to deal with async configuration.

One technique is to use a factory function:

Like other factory providers, our factory function can be async and can inject dependencies through inject.

    imports: [
      Neo4jModule.forRootAsync({
        imports: [ConfigModule],
        inject: [ConfigService],
        useFactory: (configService: ConfigService): Neo4jModuleConfig => ({
          host: configService.get('NEO4J_HOST'),
          password: configService.get('NEO4J_PASSWORD'),
          port: configService.get('NEO4J_PORT'),
          scheme: configService.get('NEO4J_SCHEME'),
          username: configService.get('NEO4J_USERNAME'),
        }),
      }),
    ],

Usage examples

  import { Neo4jService } from '@iammhc/nestjs-neo4j';

  constructor(private readonly neo4jService: Neo4jService) {}

  example():Neo4jModuleConfig {
    return this.neo4jService.getConfig();
  }

function	Description	Argument
`getConfig`	Config Detail of neo4j	None
`getDriver`	Neo4j Driver	None
`getReadSession`	Get Read Session of Neo4j	`getReadSession('database?')`
`getWriteSession`	Get Write Session of Neo4j	`getWriteSession('database?')`
`read`	Use for Read Data	`read('cypher','params','database?')`
`write`	Use for write Data	`write('cypher','params','database?')`