maestro/src/modules/mixpanel/mixpanel.controller.ts

import { Body, Controller, Inject, Param, Post } from '@nestjs/common';
import { init } from 'mixpanel';
import { Authenticated } from 'src/authentication/authentication.decorator';
import { RequestUser, User } from 'src/authentication/user.decorator';

@Authenticated()
@Controller('trackEvent')
export class MixpanelController {
  constructor(
    @Inject('MIXPANEL_TOKEN')
    private readonly mixpanelToken: string,
  ) {}
  @Post(':id')
  async trackEvent(@Param('id') id, @Body() body, @User() user: RequestUser) {
    delete body.info;
    const mixpanel = init(this.mixpanelToken);

    await mixpanel.people.set(user.username, {
      $name: user.username,
      $email: user.username,
      customer_name: user.customer_name,
    });

    await mixpanel.track(id, {
      distinct_id: user.username,
      customer: user.customer_name,
      env: process.env.ENV,
      ...body,
    });

    return { id, body, user: user.username };
  }
}