Views

AudioDataViewSet

Bases: ModelViewSet

Source code in API/hardware/views.py

class AudioDataViewSet(viewsets.ModelViewSet):
    queryset = DataAudio.objects.all()
    serializer_class = AudioDataSerializer

    @swagger_auto_schema(
        operation_summary="Get an audio data s3 url",
        operation_description="Get an audio data",
        responses={200: "The audio data"},
        tags=["hardware"],
    )
    @action(
        detail=False,
        methods=["post"],
        url_path="get_audio_data",
        url_name="get_audio_data",
    )
    def get_audio_data(self, request):
        """Override the post method to add custom swagger documentation."""
        audio_id = request.data.get("audio_id", None)
        if audio_id is None:
            return Response(
                {"message": "audio_id is required."},
                status=status.HTTP_400_BAD_REQUEST,
            )
        audio_obj = DataAudio.objects.filter(id=audio_id).first()
        if audio_obj is None:
            return Response(
                {"message": "No audio data found."},
                status=status.HTTP_404_NOT_FOUND,
            )

        s3_client = settings.BOTO3_SESSION.client("s3")
        try:
            response = s3_client.generate_presigned_url(
                "get_object",
                Params={
                    "Bucket": settings.S3_BUCKET,
                    "Key": f"Listener/audio/{audio_obj.uid}/audio/{audio_obj.audio_file}",
                },
                ExpiresIn=3600,
            )

            return Response({"audio_url": response}, status=status.HTTP_200_OK)
        except Exception as e:
            logger.error(e)
            return Response(
                {"message": str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR
            )

get_audio_data(request)

Override the post method to add custom swagger documentation.

Source code in API/hardware/views.py

@swagger_auto_schema(
    operation_summary="Get an audio data s3 url",
    operation_description="Get an audio data",
    responses={200: "The audio data"},
    tags=["hardware"],
)
@action(
    detail=False,
    methods=["post"],
    url_path="get_audio_data",
    url_name="get_audio_data",
)
def get_audio_data(self, request):
    """Override the post method to add custom swagger documentation."""
    audio_id = request.data.get("audio_id", None)
    if audio_id is None:
        return Response(
            {"message": "audio_id is required."},
            status=status.HTTP_400_BAD_REQUEST,
        )
    audio_obj = DataAudio.objects.filter(id=audio_id).first()
    if audio_obj is None:
        return Response(
            {"message": "No audio data found."},
            status=status.HTTP_404_NOT_FOUND,
        )

    s3_client = settings.BOTO3_SESSION.client("s3")
    try:
        response = s3_client.generate_presigned_url(
            "get_object",
            Params={
                "Bucket": settings.S3_BUCKET,
                "Key": f"Listener/audio/{audio_obj.uid}/audio/{audio_obj.audio_file}",
            },
            ExpiresIn=3600,
        )

        return Response({"audio_url": response}, status=status.HTTP_200_OK)
    except Exception as e:
        logger.error(e)
        return Response(
            {"message": str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR
        )

Text2SpeechViewSet

Bases: ModelViewSet

Source code in API/hardware/views.py

class Text2SpeechViewSet(viewsets.ModelViewSet):
    queryset = ResSpeech.objects.all()
    serializer_class = ResSpeechSerializer

    # retrieve it based on the mac address
    def get_queryset(self):
        queryset = ResSpeech.objects.filter(
            played=False, text2speech_file__isnull=False
        )
        home_id = self.request.query_params.get("home_id", None)
        logger.info(f"Home id: {home_id}")
        if (home_id is not None) and (home_id != "None"):
            home = Home.objects.filter(id=home_id).first()
            if not home:
                return None
            queryset = queryset.filter(
                home=home, played=False, text2speech_file__isnull=False
            )

        queryset = queryset.order_by("created_at")
        item = queryset.first()
        if item:
            item.played = True
            item.save()
        if item:
            return [item]
        else:
            return None

    def list(self, request, *args, **kwargs):
        queryset = self.get_queryset()
        if queryset is None:
            return Response(
                {"message": "No text to speech found."},
                status=status.HTTP_404_NOT_FOUND,
            )

        item = queryset[0]

        s3_url = None
        if item.text2speech_file is not None:
            local_file = settings.AI_MEDIA_ROOT / item.text2speech_file.split("/")[-1]
            logger.info(local_file)
            if local_file.exists() and (
                settings.STORAGE_SOLUTION == settings.STORAGE_SOLUTION_VOLUME
                or settings.STORAGE_SOLUTION == settings.STORAGE_SOLUTION_LOCAL
            ):
                s3_client = settings.BOTO3_SESSION.client("s3")
                s3_key = f"Responder/tts/{item.text2speech_file.split('/')[-1]}"
                try:
                    s3_client.upload_file(
                        local_file,
                        settings.S3_BUCKET,
                        s3_key,
                    )
                except Exception as e:
                    logger.error(e)
                    logger.exception(e)
                    # response with the HttpResponse
            try:
                s3_client = settings.BOTO3_SESSION.client("s3")
                response = s3_client.generate_presigned_url(
                    "get_object",
                    Params={
                        "Bucket": settings.S3_BUCKET,
                        "Key": f"Responder/tts/{item.text2speech_file}",
                    },
                    ExpiresIn=3600,
                )
                s3_url = response
            except Exception as e:
                logger.error(e)
        data = ResSpeechSerializer(item).data
        data["tts_url"] = s3_url
        logger.info(s3_url)
        return Response(data, status=status.HTTP_200_OK)

    @swagger_auto_schema(
        operation_summary="Get speech audio s3 url",
        operation_description="Get the text to speech audio s3 url",
        responses={200: "The text to speech"},
        tags=["hardware"],
    )
    @action(
        detail=False,
        methods=["post"],
        url_path="get_text_to_speech",
        url_name="get_text_to_speech",
    )
    def get_text_to_speech(self, request):
        """Override the post method to add custom swagger documentation."""
        text2speech_id = request.data.get("text2speech_id", None)
        if text2speech_id is None:
            return Response(
                {"message": "text2speech_id is required."},
                status=status.HTTP_400_BAD_REQUEST,
            )
        text2speech_obj = ResSpeech.objects.filter(id=text2speech_id).first()
        if text2speech_obj is None:
            return Response(
                {"message": "No text to speech found."},
                status=status.HTTP_404_NOT_FOUND,
            )

        s3_client = settings.BOTO3_SESSION.client("s3")
        try:
            response = s3_client.generate_presigned_url(
                "get_object",
                Params={
                    "Bucket": settings.S3_BUCKET,
                    "Key": f"tts/{text2speech_obj.text2speech_file}",
                },
                ExpiresIn=3600,
            )

            return Response({"tts_url": response}, status=status.HTTP_200_OK)
        except Exception as e:
            logger.error(e)
            return Response(
                {"message": str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR
            )

get_text_to_speech(request)

Override the post method to add custom swagger documentation.

Source code in API/hardware/views.py

@swagger_auto_schema(
    operation_summary="Get speech audio s3 url",
    operation_description="Get the text to speech audio s3 url",
    responses={200: "The text to speech"},
    tags=["hardware"],
)
@action(
    detail=False,
    methods=["post"],
    url_path="get_text_to_speech",
    url_name="get_text_to_speech",
)
def get_text_to_speech(self, request):
    """Override the post method to add custom swagger documentation."""
    text2speech_id = request.data.get("text2speech_id", None)
    if text2speech_id is None:
        return Response(
            {"message": "text2speech_id is required."},
            status=status.HTTP_400_BAD_REQUEST,
        )
    text2speech_obj = ResSpeech.objects.filter(id=text2speech_id).first()
    if text2speech_obj is None:
        return Response(
            {"message": "No text to speech found."},
            status=status.HTTP_404_NOT_FOUND,
        )

    s3_client = settings.BOTO3_SESSION.client("s3")
    try:
        response = s3_client.generate_presigned_url(
            "get_object",
            Params={
                "Bucket": settings.S3_BUCKET,
                "Key": f"tts/{text2speech_obj.text2speech_file}",
            },
            ExpiresIn=3600,
        )

        return Response({"tts_url": response}, status=status.HTTP_200_OK)
    except Exception as e:
        logger.error(e)
        return Response(
            {"message": str(e)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR
        )

list_files(request)

List all the files in the S3 bucket

Source code in API/hardware/views.py

@api_view(["GET"])
@permission_classes([IsAuthenticated])
def list_files(request):
    """
    List all the files in the S3 bucket
    """
    from_time = request.data.get("from_time", None)
    logger.info(f"From time: {from_time}")
    if from_time is None:
        # default to 100 day ago
        from_time = datetime.now() - timedelta(days=100)
    else:
        # get the from_time from the timestamp
        from_time = datetime.fromtimestamp(float(from_time))

    audio_files = DataAudio.objects.filter(created_at__gte=from_time)
    video_files = DataVideo.objects.filter(created_at__gte=from_time)
    audio_list_json = AudioDataSerializer(audio_files, many=True).data
    video_list_json = VideoDataSerializer(video_files, many=True).data
    return Response(
        {"audio_files": audio_list_json, "video_files": video_list_json},
        status=status.HTTP_200_OK,
    )

upload_file(request)

This is for temporarily solution, as we host the centre server, and will not provide the S3 access to the general user

So to testout our system, you can use this endpoint to upload files to S3 Focus on client and AI side

Source code in API/hardware/views.py

@api_view(["POST"])
@permission_classes([IsAuthenticated])
def upload_file(request):
    """
    This is for temporarily solution, as we host the centre server,
    and will not provide the S3 access to the general user

    So to testout our system, you can use this endpoint to upload files to S3
    Focus on client and AI side

    """
    file = request.FILES.get("file")
    if file is None:
        return Response(
            {"message": "No file found."},
            status=status.HTTP_400_BAD_REQUEST,
        )
    s3_client = settings.BOTO3_SESSION.client("s3")
    dest_path = request.data.get("dest_path", None)
    if dest_path is None:
        return Response(
            {"message": "dest_path is required."},
            status=status.HTTP_400_BAD_REQUEST,
        )
    try:
        s3_client.upload_fileobj(
            file,
            settings.S3_BUCKET,
            dest_path,
        )
        return Response(
            {"message": "File uploaded successfully."},
            status=status.HTTP_200_OK,
        )
    except Exception as e:
        logger.error(e)
        return Response(
            {"message": str(e)},
            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
        )