# Lilo Stitcher API

An ASP.NET Core Web API for stitching, cropping, and scaling tiled images (720×720).

## Prerequisites

* .NET 9.0 SDK
* `ASSET_PATH_RO` environment variable containing the path to tiles directory (1,705 PNGs named A1.png…AE55.png)

## Build & Run

```bash
cd lilo-stitcher
dotnet clean
dotnet run
```

By default, the API listens on `http://localhost:5243` and `https://localhost:7121` (see [`launchSettings.json`](https://null.formulatrix.dev/fikribahru/lilo-stitcher/src/branch/main/Properties/launchSettings.json)).

## Usage

**Endpoint:** `POST /api/image/generate`

**Request Body (JSON):**

```json
{
  "canvas_rect": "A1:H12",
  "crop_offset": [0.25, 0.25],
  "crop_size":   [0.5,  0.5],
  "output_scale": 1.0
}
```

**Example (using `curl`):**

```bash
curl -X POST http://localhost:5243/api/image/generate \
     -H "Content-Type: application/json" \
     -o output.png \
     -d '{"canvas_rect":"A1:H12","crop_offset":[0.25,0.25],"crop_size":[0.5,0.5],"output_scale":1.0}'
```

The API will return a `image/png` containing the stitched, cropped, and scaled result.