Added video studio router and endpoints. Added research router and endpoints. Added youtube router and endpoints. Added onboarding utils router and endpoints. Added onboarding utils service. Added onboarding utils models. Added onboarding utils routes. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils. Added onboarding utils utils.
This commit is contained in:
ajaysi
203
backend/services/wavespeed/polling.py
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203
backend/services/wavespeed/polling.py
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"""
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Polling utilities for WaveSpeed API.
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"""
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import time
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from typing import Any, Dict, Optional, Callable
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import requests
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from fastapi import HTTPException
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from requests import exceptions as requests_exceptions
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from utils.logger_utils import get_service_logger
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logger = get_service_logger("wavespeed.polling")
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class WaveSpeedPolling:
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"""Polling utilities for WaveSpeed API predictions."""
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def __init__(self, api_key: str, base_url: str):
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"""Initialize polling utilities.
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Args:
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api_key: WaveSpeed API key
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base_url: WaveSpeed API base URL
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"""
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self.api_key = api_key
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self.base_url = base_url
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def _get_headers(self) -> Dict[str, str]:
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"""Get HTTP headers for API requests."""
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return {"Authorization": f"Bearer {self.api_key}"}
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def get_prediction_result(self, prediction_id: str, timeout: int = 30) -> Dict[str, Any]:
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"""
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Fetch the current status/result for a prediction.
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Matches the example pattern: simple GET request, check status_code == 200, return data.
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"""
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url = f"{self.base_url}/predictions/{prediction_id}/result"
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headers = self._get_headers()
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try:
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response = requests.get(url, headers=headers, timeout=timeout)
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except requests_exceptions.Timeout as exc:
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raise HTTPException(
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status_code=504,
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detail={
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"error": "WaveSpeed polling request timed out",
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"prediction_id": prediction_id,
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"resume_available": True,
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"exception": str(exc),
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},
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) from exc
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except requests_exceptions.RequestException as exc:
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raise HTTPException(
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status_code=502,
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detail={
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"error": "WaveSpeed polling request failed",
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"prediction_id": prediction_id,
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"resume_available": True,
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"exception": str(exc),
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},
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) from exc
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# Match example pattern: check status_code == 200, then get data
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if response.status_code == 200:
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result = response.json().get("data")
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if not result:
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raise HTTPException(status_code=502, detail={"error": "WaveSpeed polling response missing data"})
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return result
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else:
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# Non-200 status - log and raise error (matching example's break behavior)
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logger.error(f"[WaveSpeed] Polling failed: {response.status_code} {response.text}")
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raise HTTPException(
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status_code=502,
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detail={
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"error": "WaveSpeed prediction polling failed",
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"status_code": response.status_code,
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"response": response.text,
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},
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)
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def poll_until_complete(
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self,
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prediction_id: str,
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timeout_seconds: Optional[int] = None,
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interval_seconds: float = 1.0,
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progress_callback: Optional[Callable[[float, str], None]] = None,
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) -> Dict[str, Any]:
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"""
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Poll WaveSpeed until the job completes or fails.
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Matches the example pattern: simple polling loop until status is "completed" or "failed".
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Args:
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prediction_id: The prediction ID to poll for
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timeout_seconds: Optional timeout in seconds. If None, polls indefinitely until completion/failure.
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interval_seconds: Seconds to wait between polling attempts (default: 1.0, faster than 2.0)
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progress_callback: Optional callback function(progress: float, message: str) for progress updates
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Returns:
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Dict containing the completed result
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Raises:
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HTTPException: If the task fails, polling fails, or times out (if timeout_seconds is set)
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"""
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start_time = time.time()
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consecutive_errors = 0
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max_consecutive_errors = 6 # safety guard for non-transient errors
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while True:
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try:
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result = self.get_prediction_result(prediction_id)
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consecutive_errors = 0 # Reset error counter on success
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except HTTPException as exc:
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detail = exc.detail or {}
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if isinstance(detail, dict):
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detail.setdefault("prediction_id", prediction_id)
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detail.setdefault("resume_available", True)
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detail.setdefault("error", detail.get("error", "WaveSpeed polling failed"))
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# Determine underlying status code (WaveSpeed vs proxy)
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status_code = detail.get("status_code", exc.status_code)
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# Treat 5xx as transient: keep polling indefinitely with backoff
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if 500 <= int(status_code) < 600:
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consecutive_errors += 1
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backoff = min(30.0, interval_seconds * (2 ** (consecutive_errors - 1)))
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logger.warning(
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f"[WaveSpeed] Transient polling error {consecutive_errors} for {prediction_id}: "
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f"{status_code}. Backing off {backoff:.1f}s"
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)
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time.sleep(backoff)
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continue
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# For non-transient (typically 4xx) errors, apply safety cap
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consecutive_errors += 1
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if consecutive_errors >= max_consecutive_errors:
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logger.error(
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f"[WaveSpeed] Too many polling errors ({consecutive_errors}) for {prediction_id}, "
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f"status_code={status_code}. Giving up."
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)
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raise HTTPException(status_code=exc.status_code, detail=detail) from exc
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backoff = min(30.0, interval_seconds * (2 ** (consecutive_errors - 1)))
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logger.warning(
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f"[WaveSpeed] Polling error {consecutive_errors}/{max_consecutive_errors} for {prediction_id}: "
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f"{status_code}. Backing off {backoff:.1f}s"
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)
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time.sleep(backoff)
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continue
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# Extract status from result (matching example pattern)
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status = result.get("status")
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if status == "completed":
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elapsed = time.time() - start_time
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logger.info(f"[WaveSpeed] Prediction {prediction_id} completed in {elapsed:.1f}s")
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return result
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if status == "failed":
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error_msg = result.get("error", "Unknown error")
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logger.error(f"[WaveSpeed] Prediction {prediction_id} failed: {error_msg}")
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raise HTTPException(
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status_code=502,
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detail={
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"error": "WaveSpeed task failed",
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"prediction_id": prediction_id,
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"message": error_msg,
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"details": result,
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},
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)
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# Check timeout only if specified
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if timeout_seconds is not None:
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elapsed = time.time() - start_time
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if elapsed > timeout_seconds:
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logger.error(f"[WaveSpeed] Prediction {prediction_id} timed out after {timeout_seconds}s")
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raise HTTPException(
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status_code=504,
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detail={
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"error": "WaveSpeed task timed out",
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"prediction_id": prediction_id,
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"timeout_seconds": timeout_seconds,
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"current_status": status,
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"message": f"Task did not complete within {timeout_seconds} seconds. Status: {status}",
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},
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)
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# Log progress periodically (every 30 seconds)
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elapsed = time.time() - start_time
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if int(elapsed) % 30 == 0 and elapsed > 0:
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logger.info(f"[WaveSpeed] Polling {prediction_id}: status={status}, elapsed={elapsed:.0f}s")
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# Call progress callback if provided
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if progress_callback:
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# Map elapsed time to progress (20-80% range during polling)
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# Assume typical completion time is timeout_seconds or 120s default
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estimated_total = timeout_seconds or 120
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progress = min(80.0, 20.0 + (elapsed / estimated_total) * 60.0)
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progress_callback(progress, f"Video generation in progress... ({elapsed:.0f}s)")
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# Poll faster (1.0s instead of 2.0s) to match example's responsiveness
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time.sleep(interval_seconds)
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