A backend service for processing and managing images with basic transformations. Designed to handle low to medium workloads, this service integrates seamlessly with AWS S3 and supports modern API practices.

• Transformations:
  • Resize
  • Crop
  • Rotate
  • Flip
  • Filters
    • Modulation
    • Gamma
    • Gaussian Blur
    • Grayscale
    • Sharpness
    • Format (in dev)
• Storage: Upload images to AWS S3 with optional metadata and manage storage efficiently.
• OpenAPI:
  • Fully documented APIs for easy integration.

• Backend
  • Go for image processing backend service
• Storage
  • AWS S3 for reliable and scalable file storage
• Image Processing
  • Leveraging the govips library for faster and memory-efficient operations

OpenAPI documentation is available at /swagger/index.html once the service is running

• Go 1.18+ installed.
• AWS account with S3 access

git clone https://github.com/yourusername/image-processing-service.git
cd image-processing-service

1. Create a .env file in the project root:

   AWS_ACCESS_KEY_ID=your-access-key
   AWS_SECRET_ACCESS_KEY=your-secret-key
   S3_BUCKET_NAME=your-bucket-name
   S3_REGION=your-region

go run cmd/main.go

• POST /images/upload
  • Upload an image to AWS S3 bucket.
  • Request body: multipart/form-data

• GET images?key=image.jpg
  • Fetch the required image if available

• GET images/all?page=2&limit=15
  • Fetch a paginated list of images

• POST /images/transform
• Request body:

  {
  "image": "image-key-in-s3",
  "output": "output-image-name",
  "transformation": {
    "resize": { "width": 200, "height": 200 },
    "crop": { "x": 10, "y": 10, "width": 100, "height": 100 },
    "rotate": { "angle": 90 },
    "filters": { "brightness": 1.2, "contrast": 1.0 }
    }
  }

• Scalable Architecture:
  • Microservices-based architecture with a Gateway and OAuth2 for authentication.
• Performance Optimization
• User Account Management
• Front-End (e.g React, HTMX)/Mobile App (e.g iOS)
• GraphQL based requests
• Implement CI/CD pipeline
• Expand Cloud Support
• Advanced Transformations