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ccproxy.api.routes.proxy

ccproxy.api.routes.proxy

Proxy endpoints for CCProxy API Server.

create_openai_chat_completion async 

create_openai_chat_completion(request, proxy_service, auth)

Create a chat completion using Claude AI with OpenAI-compatible format.

This endpoint handles OpenAI API format requests and forwards them directly to Claude via the proxy service.

Source code in ccproxy/api/routes/proxy.py 
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@router.post("/v1/chat/completions", response_model=None)
async def create_openai_chat_completion(
    request: Request,
    proxy_service: ProxyServiceDep,
    auth: ConditionalAuthDep,
) -> StreamingResponse | Response:
    """Create a chat completion using Claude AI with OpenAI-compatible format.

    This endpoint handles OpenAI API format requests and forwards them
    directly to Claude via the proxy service.
    """
    try:
        # Get request body
        body = await request.body()

        # Get headers and query params
        headers = dict(request.headers)
        query_params: dict[str, str | list[str]] | None = (
            dict(request.query_params) if request.query_params else None
        )

        # Handle the request using proxy service directly
        # Strip the /api prefix from the path
        service_path = request.url.path.removeprefix("/api")
        response = await proxy_service.handle_request(
            method=request.method,
            path=service_path,
            headers=headers,
            body=body,
            query_params=query_params,
            request=request,  # Pass the request object for context access
        )

        # Return appropriate response type
        if isinstance(response, StreamingResponse):
            # Already a streaming response
            return response
        else:
            # Tuple response - handle regular response
            status_code, response_headers, response_body = response
            if status_code >= 400:
                # Store headers for preservation middleware
                request.state.preserve_headers = response_headers
                # Forward error response directly with headers
                return ProxyResponse(
                    content=response_body,
                    status_code=status_code,
                    headers=response_headers,
                    media_type=response_headers.get("content-type", "application/json"),
                )

            # Check if this is a streaming response based on content-type
            content_type = response_headers.get("content-type", "")
            if "text/event-stream" in content_type:
                # Return as streaming response
                async def stream_generator() -> AsyncIterator[bytes]:
                    # Split the SSE data into chunks
                    for line in response_body.decode().split("\n"):
                        if line.strip():
                            yield f"{line}\n".encode()

                return StreamingResponse(
                    stream_generator(),
                    media_type="text/event-stream",
                    headers={
                        "Cache-Control": "no-cache",
                        "Connection": "keep-alive",
                    },
                )
            else:
                # Parse JSON response
                response_data = json.loads(response_body.decode())

                # Convert Anthropic response back to OpenAI format for /chat/completions
                openai_adapter = OpenAIAdapter()
                openai_response = openai_adapter.adapt_response(response_data)

                # Return response with headers
                return ProxyResponse(
                    content=json.dumps(openai_response),
                    status_code=status_code,
                    headers=response_headers,
                    media_type=response_headers.get("content-type", "application/json"),
                )

    except HTTPException:
        # Re-raise HTTPException as-is (including 401 auth errors)
        raise
    except Exception as e:
        raise HTTPException(
            status_code=500, detail=f"Internal server error: {str(e)}"
        ) from e

create_anthropic_message async 

create_anthropic_message(request, proxy_service, auth)

Create a message using Claude AI with Anthropic format.

This endpoint handles Anthropic API format requests and forwards them directly to Claude via the proxy service.

Source code in ccproxy/api/routes/proxy.py 
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@router.post("/v1/messages", response_model=None)
async def create_anthropic_message(
    request: Request,
    proxy_service: ProxyServiceDep,
    auth: ConditionalAuthDep,
) -> StreamingResponse | Response:
    """Create a message using Claude AI with Anthropic format.

    This endpoint handles Anthropic API format requests and forwards them
    directly to Claude via the proxy service.
    """
    try:
        # Get request body
        body = await request.body()

        # Get headers and query params
        headers = dict(request.headers)
        query_params: dict[str, str | list[str]] | None = (
            dict(request.query_params) if request.query_params else None
        )

        # Handle the request using proxy service directly
        # Strip the /api prefix from the path
        service_path = request.url.path.removeprefix("/api")
        response = await proxy_service.handle_request(
            method=request.method,
            path=service_path,
            headers=headers,
            body=body,
            query_params=query_params,
            request=request,  # Pass the request object for context access
        )

        # Return appropriate response type
        if isinstance(response, StreamingResponse):
            # Already a streaming response
            return response
        else:
            # Tuple response - handle regular response
            status_code, response_headers, response_body = response
            if status_code >= 400:
                # Store headers for preservation middleware
                request.state.preserve_headers = response_headers
                # Forward error response directly with headers
                return ProxyResponse(
                    content=response_body,
                    status_code=status_code,
                    headers=response_headers,
                    media_type=response_headers.get("content-type", "application/json"),
                )

            # Check if this is a streaming response based on content-type
            content_type = response_headers.get("content-type", "")
            if "text/event-stream" in content_type:
                # Return as streaming response
                async def stream_generator() -> AsyncIterator[bytes]:
                    # Split the SSE data into chunks
                    for line in response_body.decode().split("\n"):
                        if line.strip():
                            yield f"{line}\n".encode()

                # Start with the response headers from proxy service
                streaming_headers = response_headers.copy()

                # Ensure critical headers for streaming
                streaming_headers["Cache-Control"] = "no-cache"
                streaming_headers["Connection"] = "keep-alive"

                # Set content-type if not already set by upstream
                if "content-type" not in streaming_headers:
                    streaming_headers["content-type"] = "text/event-stream"

                return StreamingResponse(
                    stream_generator(),
                    media_type="text/event-stream",
                    headers=streaming_headers,
                )
            else:
                # Store headers for preservation middleware
                request.state.preserve_headers = response_headers

                # Parse JSON response
                response_data = json.loads(response_body.decode())

                # Return response with headers
                return ProxyResponse(
                    content=response_body,  # Use original body to preserve exact format
                    status_code=status_code,
                    headers=response_headers,
                    media_type=response_headers.get("content-type", "application/json"),
                )

    except HTTPException:
        # Re-raise HTTPException as-is (including 401 auth errors)
        raise
    except Exception as e:
        raise HTTPException(
            status_code=500, detail=f"Internal server error: {str(e)}"
        ) from e