Lovable and AWS S3 integration: Step-by-Step Guide 2025

 

Adding AWS SDK Dependency

 

• Open your project's package.json file in the root directory of your Lovable project.
• Add the following lines inside the "dependencies" section to include the AWS SDK. This manual addition instructs Lovable to bundle the dependency:

"dependencies": {
  "aws-sdk": "^2.1234.0"  // Update the version if needed
  // ...other dependencies
}
  

• Save the file. Lovable will use this dependency when running your project.

 

Creating the S3 Service File

 

• Create a new file named s3Service.ts in your project's source directory.
• Paste the following TypeScript code into the file to configure the AWS SDK and create a function for file uploads:

import * as AWS from 'aws-sdk';

// Configure AWS with your credentials and region. Replace the placeholder values.
AWS.config.update({
  accessKeyId: 'YOURAWSACCESSKEYID',
  secretAccessKey: 'YOURAWSSECRETACCESSKEY',
  region: 'YOURAWSREGION'  // e.g., 'us-east-1'
});
const s3 = new AWS.S3();
export const uploadFileToS3 = async (
  bucketName: string,
  key: string,
  body: Buffer
): Promise<AWS.S3.ManagedUpload.SendData> => {
  const params: AWS.S3.PutObjectRequest = {
    Bucket: bucketName,
    Key: key,
    Body: body,
    ACL: 'public-read'  // Adjust permissions as needed
  };
  try {
    const data = await s3.upload(params).promise();
    console.log('File uploaded successfully:', data.Location);
    return data;
  } catch (error) {
    console.error('Error uploading file:', error);
    throw error;
  }
};
  



• Modify the configuration values by replacing YOURAWSACCESSKEYID, YOURAWSSECRETACCESSKEY, and YOURAWSREGION with your actual AWS credentials and region.

 

Integrating the S3 Service in Your Project

 

• Decide where in your Lovable project you want to integrate S3 file uploads (for example, within an API endpoint or an upload handler function).
• In the relevant TypeScript file, import the S3 upload function by adding the following line at the top:

import { uploadFileToS3 } from './s3Service';
  

• Use the function wherever file uploads are required. For example, add this upload handler function:

const handleUpload = async (fileBuffer: Buffer, fileName: string) => {
  try {
    const bucketName = 'your-bucket-name';  // Replace with your actual bucket name
    const result = await uploadFileToS3(bucketName, fileName, fileBuffer);
    console.log('Uploaded file URL:', result.Location);
    // Additional logic such as saving the URL in your database can be added here.
  } catch (error) {
    console.error('Upload failed:', error);
  }
};

// Example usage (this might be part of an Express route or similar handler)
  



• Integrate this handler into the appropriate part of your Lovable project's codebase so that file uploads invoke handleUpload.

 

Configuring Environment Variables

 

• For security, avoid hard coding AWS credentials. If Lovable allows configuration of environment variables, modify your s3Service.ts file as follows:

AWS.config.update({
  accessKeyId: process.env.AWSACCESSKEYID || 'defaultaccess_key',
  secretAccessKey: process.env.AWSSECRETACCESSKEY || 'defaultsecret_key',
  region: process.env.AWS_REGION || 'us-east-1'
});
  

• Ensure that the environment variables AWSACCESSKEYID, AWSSECRETACCESSKEY, and AWS_REGION are configured in Lovable’s settings or configuration panel.

 

Testing Your Integration

 

• Upload a test file using the integrated upload function. This could be triggered via an API endpoint or through a user interface action.
• Check the Lovable console logs for messages indicating a successful upload and verify that the file appears in the designated AWS S3 bucket with proper permissions.
• If errors occur, review your AWS credentials, bucket name, region configuration, and network connectivity.