PostHog Connector

// Private API endpoints use Bearer authentication
const headers = {
  'Authorization': `Bearer ${process.env.POSTHOG_PERSONAL_API_KEY}`,
  'Content-Type': 'application/json'
};

// Public endpoints use the project token
const publicHeaders = {
  'Content-Type': 'application/json'
};
// Token is passed in the request body for public endpoints

connectors:
  posthog:
    enabled: true
    host: "${POSTHOG_HOST}"
    personal_api_key: "${POSTHOG_PERSONAL_API_KEY}"
    project_token: "${POSTHOG_PROJECT_TOKEN}"
    project_id: "12345"

    sync:
      persons: true
      events: true
      cohorts: true
      feature_flags: true
      schedule: "0 */3 * * *"  # Every 3 hours

    event_filters:
      - "$pageview"
      - "purchase_completed"
      - "signup_completed"
      - "feature_used"

    lists:
      all_users: 25
      active_users: 26
      power_users: 27

field_mapping:
  email: email
  $name: FIRSTNAME
  $browser: BROWSER
  $os: OS
  $initial_referrer: REFERRAL_SOURCE
  total_events: EVENT_COUNT
  last_seen: LAST_ACTIVE_DATE
  signup_date: SIGNUP_DATE
  plan: SUBSCRIPTION_PLAN
  company: COMPANY
  cohort_names: POSTHOG_COHORTS

import { TajoClient } from '@tajo/sdk';

const tajo = new TajoClient({
  apiKey: process.env.TAJO_API_KEY,
  brevoApiKey: process.env.BREVO_API_KEY
});

await tajo.connectors.connect('posthog', {
  host: process.env.POSTHOG_HOST,
  personalApiKey: process.env.POSTHOG_PERSONAL_API_KEY,
  projectToken: process.env.POSTHOG_PROJECT_TOKEN,
  projectId: '12345'
});

// Paginate through PostHog persons
let nextUrl = `${posthogHost}/api/projects/${projectId}/persons/?` +
  new URLSearchParams({ limit: '100' });

while (nextUrl) {
  const response = await fetch(nextUrl, {
    headers: {
      'Authorization': `Bearer ${process.env.POSTHOG_PERSONAL_API_KEY}`
    }
  });

  const data = await response.json();

  for (const person of data.results) {
    const email = person.properties.$email || person.properties.email;
    if (!email) continue;

    await tajo.contacts.sync({
      email,
      attributes: {
        FIRSTNAME: person.properties.$name || person.properties.name,
        LAST_ACTIVE_DATE: person.properties.$last_seen,
        SIGNUP_DATE: person.created_at,
        EVENT_COUNT: person.properties.$event_count,
        BROWSER: person.properties.$browser,
        OS: person.properties.$os,
        REFERRAL_SOURCE: person.properties.$initial_referrer
      },
      listIds: [25]
    });
  }

  nextUrl = data.next;
}

// Get PostHog cohorts and sync members to Brevo lists
const cohortsResponse = await fetch(
  `${posthogHost}/api/projects/${projectId}/cohorts/`,
  {
    headers: {
      'Authorization': `Bearer ${process.env.POSTHOG_PERSONAL_API_KEY}`
    }
  }
);

const { results: cohorts } = await cohortsResponse.json();

for (const cohort of cohorts) {
  // Get persons in this cohort
  const personsResponse = await fetch(
    `${posthogHost}/api/projects/${projectId}/cohorts/${cohort.id}/persons/`,
    {
      headers: {
        'Authorization': `Bearer ${process.env.POSTHOG_PERSONAL_API_KEY}`
      }
    }
  );

  const { results: persons } = await personsResponse.json();

  for (const person of persons) {
    const email = person.properties.$email || person.properties.email;
    if (email) {
      await tajo.contacts.update(email, {
        attributes: {
          POSTHOG_COHORTS: cohort.name
        }
      });
    }
  }
}

// Use HogQL to query analytics data
const queryResponse = await fetch(
  `${posthogHost}/api/projects/${projectId}/query/`,
  {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${process.env.POSTHOG_PERSONAL_API_KEY}`,
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      query: {
        kind: 'HogQLQuery',
        query: `
          SELECT
            properties.$email AS email,
            count() AS event_count,
            max(timestamp) AS last_event
          FROM events
          WHERE event = 'purchase_completed'
            AND timestamp > now() - interval 30 day
          GROUP BY email
          HAVING event_count > 3
          ORDER BY event_count DESC
          LIMIT 1000
        `
      }
    })
  }
);

const queryResult = await queryResponse.json();

for (const row of queryResult.results) {
  await tajo.contacts.update(row[0], {
    attributes: {
      PURCHASE_COUNT_30D: row[1],
      LAST_PURCHASE: row[2]
    }
  });
}

connectors:
  posthog:
    debug: true
    log_level: verbose
    log_queries: true
    log_sync: true