Rotate & Flip
Rotate images by an arbitrary angle and/or flip them horizontally or vertically. Rotation and flip operations can be combined in a single request.
API Endpoint
POST /api/v1/tools/rotate
Accepts multipart form data with an image file and a JSON settings field.
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| angle | number | No | 0 | Rotation angle in degrees (clockwise). Accepts any numeric value. |
| horizontal | boolean | No | false | Flip the image horizontally (mirror) |
| vertical | boolean | No | false | Flip the image vertically |
Example Request
Rotate 90 degrees clockwise:
bash
curl -X POST http://localhost:1349/api/v1/tools/rotate \
-H "Authorization: Bearer si_your-api-key" \
-F "[email protected]" \
-F 'settings={"angle": 90}'Flip horizontally:
bash
curl -X POST http://localhost:1349/api/v1/tools/rotate \
-H "Authorization: Bearer si_your-api-key" \
-F "[email protected]" \
-F 'settings={"horizontal": true}'Rotate and flip together:
bash
curl -X POST http://localhost:1349/api/v1/tools/rotate \
-H "Authorization: Bearer si_your-api-key" \
-F "[email protected]" \
-F 'settings={"angle": 45, "vertical": true}'Example Response
json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/photo.jpg",
"originalSize": 2450000,
"processedSize": 2480000
}Notes
- Rotation is applied first, then flip operations.
- Non-90-degree rotations (e.g. 45 degrees) will enlarge the canvas to fit the rotated image, with transparent or black fill depending on the output format.
- Common values: 90, 180, 270 for quarter-turn rotations.
- EXIF orientation is auto-applied before processing, so the rotation is relative to the visual orientation.