Bot2Notion

config.service.ts

import { Injectable } from '@nestjs/common';
import { ConfigService as NestConfigService } from '@nestjs/config';

// Notion
import { Client as NotionClient } from '@notionhq/client';

@Injectable()
export class ConfigService {
  private readonly config = this.createConfig();

  createConfig() {
    const configService = new NestConfigService();
    const config = {
      notion: {
        apiKey: configService.get<string>('NOTION_API_KEY'),
        pageId: configService.get<string>('NOTION_PAGE_ID'),
        databaseId: configService.get<string>('NOTION_DATABASE_ID'),
      },
    };
    return config;
  }

  // Notion
  createNotionClient() {
    const notion = this.config.notion;
    const apiKey = notion.apiKey;
    return new NotionClient({ auth: apiKey });
  }
}

notion.service.ts

import { Injectable } from '@nestjs/common';
import { ConfigService as NestConfigService } from '../config.service';
import { ActivityDto } from 'src/dto/activity.dto';

@Injectable()
export class NotionService {
  constructor(private configService: NestConfigService) {}
  private readonly notionConfig = this.configService.createConfig().notion;

  async add(dto: ActivityDto) {
    // Create a page
    // https://developers.notion.com/reference/post-page
    return this.configService.createNotionClient().pages.create({
      parent: { database_id: this.notionConfig.databaseId },
      properties: this.getPropertiesFromActivity(dto),
    });
  }

  getPropertiesFromActivity(dto: ActivityDto) {
    return {
      Title: {
        title: [
          {
            text: {
              content: dto.title,
            },
          },
        ],
      },
      Text: {
        rich_text: [
          {
            text: {
              content: dto.text,
            },
          },
        ],
      },
    };
  }
}