PostHog Hello World

Overview

Minimal working example demonstrating core PostHog functionality.

Prerequisites

• Completed posthog-install-auth setup

• Valid API credentials configured

• Development environment ready

Instructions

Step 1: Create Entry File

Create a new file for your hello world example.

Step 2: Import and Initialize Client

import { PostHogClient } from '@posthog/sdk';

const client = new PostHogClient({ apiKey: process.env.POSTHOG_API_KEY, });

Step 3: Make Your First API Call

async function main() { // Your first API call here }

main().catch(console.error);

Output

• Working code file with PostHog client initialization

• Successful API response confirming connection

• Console output showing:

Success! Your PostHog connection is working.

Error Handling

Error Cause Solution

Import Error SDK not installed Verify with npm list or pip show

Auth Error Invalid credentials Check environment variable is set

Timeout Network issues Increase timeout or check connectivity

Rate Limit Too many requests Wait and retry with exponential backoff

Examples

TypeScript Example

import { PostHogClient } from '@posthog/sdk';

const client = new PostHogClient({ apiKey: process.env.POSTHOG_API_KEY, });

async function main() { // Your first API call here }

main().catch(console.error);

Python Example

from posthog import PostHogClient

client = PostHogClient()

Your first API call here

Resources

• PostHog Getting Started

• PostHog API Reference

• PostHog Examples

Next Steps

Proceed to posthog-local-dev-loop for development workflow setup.