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freepik-api/app/routers/utilities.py
Sebastian Krüger 1a5c686dfc
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fix: align Freepik API paths with OpenAPI spec
The original implementation used guessed endpoint paths that don't match
the actual Freepik API. Key fixes based on their OpenAPI spec:

- Task polling is per-endpoint (e.g. GET /v1/ai/text-to-image/flux-dev/{task-id})
  not a generic /v1/ai/tasks/{id}. freepik_client now returns TaskResult
  with status_path, and task_tracker polls using that path.
- Fixed endpoint paths: flux-pro -> flux-pro-v1-1, upscale -> image-upscaler,
  relight -> image-relight, style-transfer -> image-style-transfer,
  expand -> image-expand/flux-pro, inpaint -> ideogram-image-edit,
  remove-background -> beta/remove-background, classifier -> classifier/image,
  audio-isolate -> audio-isolation, icon -> text-to-icon
- Fixed video paths: kling -> kling-o1-pro with kling-o1 status path,
  minimax -> minimax-hailuo-02-1080p, seedance -> seedance-pro-1080p
- Fixed request schemas to match actual API params (e.g. scale_factor
  not scale, reference_image not style_reference, image_url for bg removal)
- Fixed response parsing: status is uppercase (COMPLETED not completed),
  results in data.generated[] array, classifier returns [{class_name, probability}]

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:26:42 +01:00

81 lines
2.7 KiB
Python

import logging
from datetime import datetime, timezone
from fastapi import APIRouter, HTTPException
from app.schemas.common import TaskResponse, TaskStatus
from app.schemas.utilities import (
ClassificationResponse,
IconRequest,
RemoveBackgroundRequest,
RemoveBackgroundResponse,
)
from app.services import freepik_client, task_tracker
from app.services.freepik_client import _extract_task_id
logger = logging.getLogger(__name__)
router = APIRouter(prefix='/api/v1/util', tags=['utilities'])
@router.post('/remove-background', response_model=RemoveBackgroundResponse)
async def remove_background(request: RemoveBackgroundRequest):
"""Remove background from an image. Takes a URL, returns result URLs."""
result = await freepik_client.remove_background(request.image_url)
return RemoveBackgroundResponse(**result)
@router.post('/classify', response_model=ClassificationResponse)
async def classify_image(request: dict):
"""Classify whether an image is AI-generated."""
image = request.get('image')
if not image:
raise HTTPException(status_code=400, detail='image field is required')
result = await freepik_client.classify_image(image)
return result
@router.post('/audio-isolate', response_model=TaskResponse)
async def audio_isolate(request: dict):
"""Isolate audio tracks from an audio file."""
audio = request.get('audio')
if not audio:
raise HTTPException(status_code=400, detail='audio field is required')
result = await freepik_client.isolate_audio(audio)
freepik_task_id = _extract_task_id(result.data)
if not freepik_task_id:
raise HTTPException(status_code=502, detail='No task_id in Freepik response')
internal_id = task_tracker.submit(freepik_task_id, result.status_path, {'operation': 'audio-isolate'})
return TaskResponse(
task_id=internal_id,
status=TaskStatus.pending,
created_at=datetime.now(timezone.utc),
)
# Icon generation lives under /api/v1/generate/ but is simple enough to keep here
icon_router = APIRouter(prefix='/api/v1/generate', tags=['utilities'])
@icon_router.post('/icon', response_model=TaskResponse)
async def generate_icon(request: IconRequest):
result = await freepik_client.generate_icon(
prompt=request.prompt,
color=request.color,
shape=request.shape,
style=request.style,
)
freepik_task_id = _extract_task_id(result.data)
if not freepik_task_id:
raise HTTPException(status_code=502, detail='No task_id in Freepik response')
internal_id = task_tracker.submit(freepik_task_id, result.status_path, {'operation': 'icon'})
return TaskResponse(
task_id=internal_id,
status=TaskStatus.pending,
created_at=datetime.now(timezone.utc),
)