React

LogSnag client for React applications

Installation

Using npm

npm install @logsnag/react

Using yarn

yarn add @logsnag/react

Using pnpm

pnpm add @logsnag/react

Usage

First, wrap your application with the LogSnagProvider at the top level, passing in your project and token:

Set your token's scope to public in the LogSnag dashboard.

import { LogSnagProvider } from '@logsnag/react';

function App() {
  return (
    <LogSnagProvider
      token="<TOKEN>"
      project="<PROJECT_NAME>"
    >
      {/* Rest of your app */}
    </LogSnagProvider>
  );
}

Hooks

The useLogSnag hook can be used across your React components and provides the following methods:

• track(options: TrackOptions): Track custom events.

• identify(options: IdentifyOptions): Identify user traits.

• setUserId(userId: string | null): Set the user id for the current user. If the user is not logged in, pass null.

• clearUserId(): Clear the user id for the current user.

• setDebug(flag: boolean = true): Set debug mode for logging.

import { useLogSnag } from '@logsnag/react';

export function Component() {
  // Get the hooks
  const { setUserId, track, identify } = useLogSnag();

  // Set the user id when a user logs in
  setUserId('user-123');

  // Track an event
  track({
    channel: "payments",
    event: "New Subscription",
    user_id: "user-123", // optional when set using setUserId
    icon: "💰",
    notify: true,
    tags: {
      plan: "premium",
      cycle: "monthly",
      trial: false
    }
  });

  // Identify user traits (e.g., name, email, plan, etc.)
  identify({
    user_id: "user-123", // optional when set using setUserId
    properties: {
      name: "John Doe",
      email: "[email protected]",
      plan: "premium",
    }
  });

  // Rest of your component
}

Tracking Events

You can also track events directly from HTML elements using data attributes:

<button
    data-event="Upgraded Plan"
    data-user-id="user-123"     // optional (optional when set using setUserId)
    data-channel="billing"      // optional (defaults to "events")
    data-icon=":moneybag:"      // optional
    data-tag-plan="Pro"         // optional
    data-tag-period="Monthly"   // optional
    data-tag-price="9.99"       // optional
>
    Upgrade to Pro
</button>

In this example, when the button is clicked, an event named "Upgraded Plan" will be tracked with the specified tags.