AWS S3 File Uploader

1. Go to AWS S3 Console
2. Click Create bucket
3. Enter a unique bucket name
4. Uncheck Block all public access (acknowledge the warning)
5. Click Create bucket

1. Open your bucket
2. Go to Properties tab
3. Find Bucket Versioning and click Edit
4. Select Enable and save

Go to Permissions tab → Bucket policy → Edit

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "PublicReadGetObject",
      "Effect": "Allow",
      "Principal": "*",
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::YOUR-BUCKET-NAME/*"
    }
  ]
}

1. Go to IAM Console → Policies
2. Click Create policy → JSON tab
3. Paste the policy below

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": ["s3:PutObject", "s3:DeleteObject"],
      "Resource": "arn:aws:s3:::YOUR-BUCKET-NAME/*"
    }
  ]
}

1. Go to Roles → Create role
2. Select AWS service → API Gateway
3. Attach your S3 policy
4. Name: S3UploadRole

1. Go to API Gateway Console
2. Click Create API
3. Choose REST API (not HTTP API)
4. Name: S3FileUploadAPI

1. Click Create Resource
2. Resource path: {folder}
3. Create child resource: {filename}

1. Select {filename} resource
2. Click Create Method → PUT
3. Integration type: AWS Service
4. AWS Service: S3
5. HTTP method: PUT
6. Path override: YOUR-BUCKET/{folder}/{filename}
7. Execution role: Paste your IAM role ARN

1. Click Method Response
2. Expand 200 response
3. Add header: Access-Control-Allow-Origin

Repeat the same steps as PUT, but:

• Method: DELETE
• Integration HTTP method: DELETE

1. Go to API Settings
2. Find Binary Media Types
3. Add these types:

1. Select your resource
2. Click Enable CORS
3. Check PUT, DELETE, OPTIONS
4. Add header: Content-Type

1. Go to Gateway responses
2. Edit DEFAULT 4XX
3. Add header: Access-Control-Allow-Origin: '*'
4. Repeat for DEFAULT 5XX

1. Click Deploy API
2. Stage: New Stage → name it prod
3. Copy the Invoke URL