How to use Supabase with GraphQL?

 

Step 1: Set Up Supabase Project

 

1. Begin by visiting Supabase's official website.
2. Create a new account if you haven't already, or simply log in.
3. After logging in, create a new project:

• Select "New Project" on the dashboard.
• Enter a suitable name for your project.
• Choose the desired database region.
• Set a secure password for your database.

 

Step 2: Configure API Keys and Environment

 

1. Navigate to your project's settings.
2. Go to the "API" section to find your project's URL and anon key.
3. Keep these values handy, as they will be used for client-side access.

 

Step 3: Enable GraphQL in Supabase

 

1. Supabase provides a built-in PostGraphile instance to work with GraphQL.
2. Check your instance URL (usually in the form https://your-project-ref.supabase.co).
3. Append /graphql/v1 to your project URL to access GraphQL.
4. Use the Apollo Client or any other GraphQL client to connect using the URL:

• https://your-project-ref.supabase.co/graphql/v1

 

Step 4: Set Up Supabase Client with GraphQL

 

import { createClient } from '@supabase/supabase-js'
import { ApolloClient, InMemoryCache, HttpLink } from '@apollo/client'

// Supabase setup
const supabaseUrl = 'https://your-project-ref.supabase.co'
const supabaseAnonKey = 'your-anon-key'
const supabase = createClient(supabaseUrl, supabaseAnonKey)

// Apollo Client setup
const apolloClient = new ApolloClient({
  link: new HttpLink({
    uri: `${supabaseUrl}/graphql/v1`,
    headers: {
      apikey: supabaseAnonKey,
      Authorization: `Bearer ${supabaseAnonKey}`
    }
  }),
  cache: new InMemoryCache()
})

 

Step 5: Querying with GraphQL

 

1. Use Apollo Client to write a GraphQL query. For example, to fetch all rows from a table called posts:

apolloClient.query({
  query: gql\`
    query GetPosts {
      posts {
        id
        title
        content
      }
    }
  \`
}).then(response => {
  console.log(response.data)
}).catch(error => {
  console.error(error)
})

 

Step 6: Mutating Data with GraphQL

 

1. To insert data into a table with a mutation query:

apolloClient.mutate({
  mutation: gql\`
    mutation AddPost($title: String!, $content: String!) {
      insert\_posts(objects: { title: $title, content: $content }) {
        returning {
          id
          title
          content
        }
      }
    }
  \`,
  variables: {
    title: "New Post",
    content: "This is the content of the new post."
  }
}).then(response => {
  console.log('New post added:', response.data)
}).catch(error => {
  console.error(error)
})

 

Step 7: Handling Authentication and Security

 

1. Consider setting up authentication for secure data operations.
2. Use Supabase's built-in authentication features like email/password, OAuth, etc.
3. Update the Authorization header dynamically after user login.

 

Step 8: Test and Deploy

 

1. Test your integration thoroughly with various queries and mutations.
2. Deploy your application ensuring secure and efficient operations.

 

By following these steps, you will successfully integrate Supabase with GraphQL in your application. Adjust configurations and queries as per your specific application requirements.