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openai.py
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from fastapi import HTTPException
from fastapi.encoders import jsonable_encoder
from fastapi.responses import JSONResponse
import openai
from openai.error import APIError, AuthenticationError, RateLimitError, InvalidRequestError, TimeoutError, APIConnectionError
from typing import Optional, List
from dependencies.database import get_db
from dependencies.auth import get_current_user
from schemas.openai import OpenAIRequest, OpenAIResponse, OpenAIChoice, OpenAIUsage, OpenAIModel
# Load environment variables
from .config import settings
OPENAI_API_KEY = settings.openai_api_key
openai.api_key = OPENAI_API_KEY
class OpenAIService:
"""
Service class for interacting with the OpenAI API.
"""
async def complete_text(self, text: str, model: str = "text-davinci-003", temperature: float = 0.7, max_tokens: int = 256) -> OpenAIResponse:
"""
Completes a given text using OpenAI's text completion API.
Args:
text (str): The text to be completed.
model (str, optional): The OpenAI model to use. Defaults to "text-davinci-003".
temperature (float, optional): The temperature parameter for controlling the randomness of the generated text. Defaults to 0.7.
max_tokens (int, optional): The maximum number of tokens to generate. Defaults to 256.
Returns:
OpenAIResponse: The OpenAI API response containing the completed text.
Raises:
HTTPException: If an error occurs during the API call.
"""
try:
response = openai.Completion.create(
engine=model,
prompt=text,
temperature=temperature,
max_tokens=max_tokens,
)
return OpenAIResponse(response=response.choices[0].text)
except AuthenticationError:
raise HTTPException(
status_code=401,
detail="Invalid OpenAI API key. Please check your API key.",
)
except RateLimitError:
raise HTTPException(
status_code=429,
detail="OpenAI API rate limit exceeded. Please try again later.",
)
except InvalidRequestError:
raise HTTPException(
status_code=400,
detail="Invalid request to OpenAI API. Please check your input parameters.",
)
except TimeoutError:
raise HTTPException(
status_code=504,
detail="Request to OpenAI API timed out. Please try again later.",
)
except APIConnectionError:
raise HTTPException(
status_code=500,
detail="Error connecting to OpenAI API. Please check your internet connection.",
)
except APIError as e:
raise HTTPException(
status_code=500,
detail=f"Error calling OpenAI API: {str(e)}",
)
async def translate_text(self, text: str, source_language: str, target_language: str) -> OpenAIResponse:
"""
Translates a given text using OpenAI's translation API.
Args:
text (str): The text to be translated.
source_language (str): The source language of the text.
target_language (str): The target language to translate to.
Returns:
OpenAIResponse: The OpenAI API response containing the translated text.
Raises:
HTTPException: If an error occurs during the API call.
"""
try:
response = openai.Translation.create(
model="gpt-3.5-turbo",
from_language=source_language,
to_language=target_language,
text=text,
)
return OpenAIResponse(response=response.choices[0].text)
except AuthenticationError:
raise HTTPException(
status_code=401,
detail="Invalid OpenAI API key. Please check your API key.",
)
except RateLimitError:
raise HTTPException(
status_code=429,
detail="OpenAI API rate limit exceeded. Please try again later.",
)
except InvalidRequestError:
raise HTTPException(
status_code=400,
detail="Invalid request to OpenAI API. Please check your input parameters.",
)
except TimeoutError:
raise HTTPException(
status_code=504,
detail="Request to OpenAI API timed out. Please try again later.",
)
except APIConnectionError:
raise HTTPException(
status_code=500,
detail="Error connecting to OpenAI API. Please check your internet connection.",
)
except APIError as e:
raise HTTPException(
status_code=500,
detail=f"Error calling OpenAI API: {str(e)}",
)
async def summarize_text(self, text: str, model: str = "text-davinci-003") -> OpenAIResponse:
"""
Summarizes a given text using OpenAI's summarization API.
Args:
text (str): The text to be summarized.
model (str, optional): The OpenAI model to use. Defaults to "text-davinci-003".
Returns:
OpenAIResponse: The OpenAI API response containing the summarized text.
Raises:
HTTPException: If an error occurs during the API call.
"""
try:
response = openai.Completion.create(
engine=model,
prompt=f"Summarize the following text:\n\n{text}",
temperature=0.7,
max_tokens=256,
)
return OpenAIResponse(response=response.choices[0].text)
except AuthenticationError:
raise HTTPException(
status_code=401,
detail="Invalid OpenAI API key. Please check your API key.",
)
except RateLimitError:
raise HTTPException(
status_code=429,
detail="OpenAI API rate limit exceeded. Please try again later.",
)
except InvalidRequestError:
raise HTTPException(
status_code=400,
detail="Invalid request to OpenAI API. Please check your input parameters.",
)
except TimeoutError:
raise HTTPException(
status_code=504,
detail="Request to OpenAI API timed out. Please try again later.",
)
except APIConnectionError:
raise HTTPException(
status_code=500,
detail="Error connecting to OpenAI API. Please check your internet connection.",
)
except APIError as e:
raise HTTPException(
status_code=500,
detail=f"Error calling OpenAI API: {str(e)}",
)
async def get_model(self, model_id: str) -> OpenAIModel:
"""
Retrieves information about a specific OpenAI model.
Args:
model_id (str): The ID of the OpenAI model to retrieve.
Returns:
OpenAIModel: The OpenAI model information.
Raises:
HTTPException: If an error occurs during the API call.
"""
try:
response = openai.Model.retrieve(model_id)
return OpenAIModel(**response)
except AuthenticationError:
raise HTTPException(
status_code=401,
detail="Invalid OpenAI API key. Please check your API key.",
)
except RateLimitError:
raise HTTPException(
status_code=429,
detail="OpenAI API rate limit exceeded. Please try again later.",
)
except InvalidRequestError:
raise HTTPException(
status_code=400,
detail="Invalid request to OpenAI API. Please check your input parameters.",
)
except TimeoutError:
raise HTTPException(
status_code=504,
detail="Request to OpenAI API timed out. Please try again later.",
)
except APIConnectionError:
raise HTTPException(
status_code=500,
detail="Error connecting to OpenAI API. Please check your internet connection.",
)
except APIError as e:
raise HTTPException(
status_code=500,
detail=f"Error calling OpenAI API: {str(e)}",
)
openai_service = OpenAIService()