ApsaraDB RDS:Storage

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

const supabaseUrl = "YOUR_SUPABASE_URL";
const supabaseKey = "YOUR_SUPABASE_SERVICE_KEY";

const supabase = createClient(supabaseUrl, supabaseKey);

// Create a virtual text file for demonstration
const content = 'Hello, Supabase Storage!';
const blob = new Blob([content], { type: 'text/plain' });
const fileName = `public/avatar-${Date.now()}.txt`;
const bucketName = 'avatars';

async function storageExample() {
  try {
    // Step 1: Create a public bucket named "avatars"
    // If the bucket already exists, Supabase returns the existing info without error
    const { data: bucketData, error: bucketError } = await supabase.storage.createBucket(
      bucketName,
      {
        public: true, // Set as public bucket
      }
    );

    if (bucketError && bucketError.message !== 'The resource already exists') {
      throw new Error(`Failed to create bucket: ${bucketError.message}`);
    }
    console.log('Bucket created or confirmed:', bucketData || 'already exists');

    // Step 2: Upload a file to the "avatars" bucket
    const { data: uploadData, error: uploadError } = await supabase.storage
      .from(bucketName)
      .upload(fileName, blob, {
        cacheControl: '3600', // Cache policy
        upsert: false // Do not overwrite if file exists
      });

    if (uploadError) {
      throw new Error(`File upload failed: ${uploadError.message}`);
    }
    console.log('File uploaded successfully:', uploadData);

    // Step 3: Get the public URL for the uploaded file
    const { data: urlData } = supabase.storage
      .from(bucketName)
      .getPublicUrl(fileName);

    console.log('Public URL for file:', urlData.publicUrl);

    // Download file
    const { data: downloadData, error: downloadError } = await supabase.storage
      .from(bucketName)
      .download(fileName);
    if (downloadError) {
      console.error('File download failed:', downloadError.message);
    } else {
      console.log('File downloaded successfully:', downloadData);
    }

    // List all files in the bucket
    const { data: fileListData, error: fileListError } = await supabase.storage
      .from(bucketName)
      .list();
    if (fileListError) {
      console.error('Failed to list files:', fileListError.message);
    } else {
      console.log('Files in bucket:', fileListData);
    }

  } catch (error) {
    console.error('Storage operation error:', error.message);
  }
}

// Run the example
storageExample();