JavaScript client installation in Supabase - Mini Project: Build & Apply

JavaScript Client Installation for Supabase

📖 Scenario: You are setting up a new web project that will use Supabase as its backend service. To start, you need to install and configure the Supabase JavaScript client so your web app can connect to the Supabase backend.

🎯 Goal: Install the Supabase JavaScript client and initialize it with the project URL and public API key.

📋 What You'll Learn

Install the Supabase JavaScript client using npm

Create a variable called supabaseUrl with the exact value "https://xyzcompany.supabase.co"

Create a variable called supabaseKey with the exact value "public-anonymous-key"

Initialize the Supabase client using createClient with supabaseUrl and supabaseKey

Create a variable called supabase to hold the client instance

💡 Why This Matters

🌍 Real World

This setup is the first step in building web applications that use Supabase as a backend service for authentication, database, and storage.

💼 Career

Knowing how to install and configure cloud service clients like Supabase is essential for frontend and full-stack developers working with modern cloud backends.

1

Install Supabase JavaScript Client

Write the exact npm command to install the Supabase JavaScript client package called @supabase/supabase-js.

Supabase

# Your code here

Need a hint?

Use npm install followed by the package name.

2

Create Supabase URL and Key Variables

Create two variables: supabaseUrl set to "https://xyzcompany.supabase.co" and supabaseKey set to "public-anonymous-key".

Supabase

npm install @supabase/supabase-js

// Create supabaseUrl and supabaseKey variables below
# Your code here

Need a hint?

Use const to declare variables with the exact string values.

3

Import and Initialize Supabase Client

Import createClient from @supabase/supabase-js and create a variable called supabase by calling createClient(supabaseUrl, supabaseKey).

Supabase

npm install @supabase/supabase-js

const supabaseUrl = "https://xyzcompany.supabase.co";
const supabaseKey = "public-anonymous-key";

// Import createClient and initialize supabase client below
# Your code here

Need a hint?

Use ES module import syntax and call createClient with the two variables.

4

Complete Supabase Client Setup

Ensure the full code includes the npm install command, the two variables supabaseUrl and supabaseKey, the import statement for createClient, and the initialization of supabase client.

Supabase

npm install @supabase/supabase-js

const supabaseUrl = "https://xyzcompany.supabase.co";
const supabaseKey = "public-anonymous-key";

import { createClient } from '@supabase/supabase-js';

const supabase = createClient(supabaseUrl, supabaseKey);

// Finalize the setup if needed
# Your code here

Need a hint?

Review all previous steps to ensure the full setup is present.